Barrages or weirs and layout, construction, methods of, or devices for, making same (E02B7)
E02B7 Barrages or weirs; layout, construction, methods of, or devices for, making same (for protecting banks, coasts, or harbours e02b0003040000; sealings or joints e02b0003160000; handling building or like materials for hydraulic engineering e02d0015000000; foundations in general e02d0027000000)(2103)
FIELD: defectoscopy.SUBSTANCE: invention relates to methods of reinforced concrete hydraulic reservoirs integrity monitoring using fiber optic test equipment and is designed to determine the location of damage in the daily control pools bottom and control leaks through them. Method of determining the location of the damage and monitoring it in the daily control pool bottom includes laying the fiber-optic sensor 6 over the entire area of the daily control pool in steps of 3–5 m, filling of a coarse-grained material layer under the daily control pool bottom 5, arrangement of the underground drainage gallery 10 adjoining from the outside to the daily control pool, transverse slant itra of the base 1 is made from the daily control pool axis to its edges, then a layer of coarse material, for example, crushed stone 2, is covered with a geo-synthetic filtering material 3, for example, dornite, to exclude suffusion / removal of sand 4 by the water flow, and an additional layer of sand 4 is filled onto it to form a spreading dome, which is obtained by leaks through the daily control pool bottom 5, connecting the fiber optic sensor 6 to the reading transceiver, which determines the damage location and the amount of leakages. Longitudinal slant ilong of the base 1 can be performed along the daily control pool axis in amount of 0.010–0.035. Transverse ribs, for example, reinforced concrete beads, can be installed over the whole area of the base 1 in increments of 3–5 m to create regular leakages local control zones. Fiber-optic sensor 6 can be laid from the reinforced concrete beads upper side continuously in all leakages local control zones.EFFECT: technical result consists in determining of the damage points in the daily control pools bottom, quantitative assessment of the leakage through the damages, a reduction in the timing and costs of their detection and elimination, and an increase in the lifetime of the pools.4 cl, 5 dwg
FIELD: hydraulic construction.SUBSTANCE: invention relates to the field of hydraulic engineering construction, in particular to dams made from ground materials, and can be used in construction of high composite-type rockfill dams with a core to create deep reservoirs on mountain rivers in seismically active regions. In earthquakes and uneven deformations in core of such dams, water-conducting cracks can occur, which reduce performance and reliability of structure. In order to improve reliability of structure in case of intensive seismic action and manifestations of uneven operational deformations with occurrence of water-conducting cracks in dam core and its base, composite-type rockfill dam with core comprising central part 1 of mixture of disconnected mineral soil with clay aggregate and enclosing its closed shell 2. Closed shell 2 is made of the same mixture with reduced content of disjointed mineral soil of smaller size and with increased moisture content of clay aggregate. In such a dam, simultaneously with core water impermeability increase in contact zones, healing effect of cracks resulted due to their colmatation by particles of disconnected mineral soil is achieved. In dam core junction upper zone to rock foundation sides 4, enclosing core central part closed shell 2 can be strengthened by geotextile cloths 7.EFFECT: invention is promising for use in hydraulic facilities construction, in land reclamation and in the field of environmental engineering.1 cl, 3 dwg
FIELD: construction.SUBSTANCE: method for erecting an earth dam by the hydromechanization method in the distribution area of permafrost soils includes excavation of soils by the hydromechanization method, slurry transportation to the place of laying in the dam body through pipelines. Frozen soils are excavated by water washing through boreholes 2. Mining wells 2 are located in close proximity to the dam being built. Cavities formed as a result of borehole hydraulic soil mining in a frozen layer are filled with water by 90% or their volume, which after freezing ensures the stability of the surrounding rocks. A closed water rotation cycle can be envisaged. In the water rotation cycle, an artificial reservoir 6 can be used, the base of which is waterproofed with a polyethylene film 7. Increased efficiency is achieved by decreasing soil excavation area and reducing the soil transportation length, as well as the possibility of selective soil excavation, including soil surrounded by rocks. Minimizing the change in terrain is achieved by preserving the surface profile above the soil being excavated. Increase in environmental friendliness is achieved by minimizing changes in flora and fauna on a soil excavation site surface, preserving populations. The invention can be successfully applied to the production of earth dams in permafrost conditions.EFFECT: efficiency increase, minimizing landscape change, increasing environmental friendliness.2 cl, 2 dwg
FIELD: machine engineering.SUBSTANCE: device for discharge and regulation of water withdrawal depth from a sump includes a discharge vertical elongated bellows 8, a vertical branch pipe 4 in the form of a welded body and a horizontal channel 5, a valve 6 and a water well 7. The bellows 8 has an annular weir 9, connected in the upper part with a screw driver 10 of vertical movement, fixed in the desired position on the cover 11. The bellows 8 consists of rigid rings 12 and a pleated cover 13 of elastic material. The bellows 8 has a diameter larger than the diameter of the outlet horizontal channel 5. The device has an external fixed cylinder 14 with a flange 15. The fixed cylinder 14 comprises an external outlet channel 16, enclosed by a containment grate 17 (grid) fixed with rigid ties 18 to the welded body 4 and a horizontal retraction channel 5. Sediment retractor comprises a water outlet 21 equipped with a shutter 22 with a peak 23 which is connected by a hinge 24 to a change mechanism 25 of the valve 22 for moving the latter in height, in the lower part of the dam 1. The outlet end of the branch pipe 21 with the shutter 22 is located in an additional sediment closed water well 26 with a bottom opening 27 of the pipeline 28. The water well 7 is separated from an additional closed water well 26. If it is necessary to turn off the water, it will be sufficient to move the upper end of the bellows 8 with the weir 9 to the upper end position with the screw driver 10 and fix it. The formation and transportation of the sediment flow occurs actively around the water intake external outlet channel 16 and the fixed cylinder 14 with the flange 15 and the grid 17. As a result of this process, the discharge of the stream from the cleaner layers of reservoirs 19 is constantly stabilizing, which allows increasing the level of environmental safety of external reservoirs.EFFECT: increased reliability, efficiency and uninterrupted operation of the device.7 cl, 1 dwg
FIELD: construction.SUBSTANCE: reserve spillway 2 for earth dams with a washable earth insert is arranged in the dam at the ASL elevation. Reserve spillway 2 consists of a surface that fixes erosion, which can be rectangular or as a trapezoid, and the material can be concrete or asphalt. The water lines are located inside the eroded soil insert, the lower part of which is located at the highest water level elevation, and the outlet is at the elevation, depending on the water channel slope. Water channels serve for initial erosion of the underlying soil. Sand is used as the soil for the eroded soil insert. The technique of calculating the reserve spillway with a washable soil insert at the level of the ASL elevation.EFFECT: increased reliability of the reserve spillway by secure pass of emergency spillway flood, preventing dam destruction and flooding the underlying territory to avoid environmental and property damage.3 cl, 2 dwg
FIELD: construction.SUBSTANCE: concrete dam is erected in two stages. On the first - a reinforced concrete platform is built above the river at a mark sufficient to pass the floods and the concrete of the upper part of the dam is laid on it. On the second one, concrete is placed in the lower part of the dam. The first stage begins before completion, and the second stage - after the work on the tunnelling of the spillway tunnels, backfilling of the upper and lower jumpers, the river diversion into the spillway tunnels and drainage of the pit. In order to use spillway tunnels with lower capacity and, thus, to reduce capital costs for dam construction, work on the diversion of the river into spillway tunnels, laying concrete in the lower part of the dam and subsequent overlapping of the catchment tunnels is carried out during the intermittent period.EFFECT: reduction of the dam construction time, due to earlier work on laying concrete in its body.2 cl, 3 dwg
FIELD: construction.SUBSTANCE: device 5 comprises a horizontal water intake column 1 located in a zone of periodically overloading the levels of the head race 2. The filtration column 1 consists of a sleeve 3 and a filter filling 4. The filtration column 1 through the inlet pipe and the filtering perforated geotextile material with a mesh provides filling the pressure chamber 9 located inside the accumulation tank equipped with an inspection well 10 during the rise of the head race 2 level. In the pressure chamber 9 bottom, there is an opening with a valve 12 connected by a hinged-lever mechanism consisting of levers 13 and 14, with a float 15, through a rod 16. The lever 14 is fixed on an axle. The float 15 is located in the accumulation tank 18. The float 15 is connected via the rod 16 to the lever of an adjustable lock fixed thereto, made of an upper section and a lower section, connected together by a swivel and two hinges. A lever with a stop is fixed to the bottom section of the lock. The adjustable lock is fixed to the pipe head with a clamp. A gravity water conduit 29 is connected to the inspection well 10 of the drainage system 32 to be flushed. The discharged water passes through the gravity water conduit 29 in the intersection zone of the anti-filtration dam element 30 and the anti-filtration diaphragms 31 to the inspection well of the drainage 32 to be flushed.EFFECT: regulation efficiency of the operation of drainage structures, increasing reliability and service life.2 dwg
FIELD: construction.SUBSTANCE: invention relates to the technology of protecting the mitering lock gate of the navigation hydraulic structure against the berthing impact during lockage in the application of safety systems with hydraulic shock absorbers. A method is implemented as follows. The installation is made by the commands of the automated control system at the ship's entrance to the lock from the upstream side perpendicularly to the lock of the safety device containing a flexible barrier consisting of two cable parts, one ends of which are connected to hydraulic shock absorbers and the other ends to each other by the hitch assembly. Two hydraulic shock absorbers with chokes are connected to the pumping unit by hydraulic lines. When the ship enters the lock, the initial data on speed, light displacement and deadweight are entered to the automated control system. Control signal to obtain the necessary flow of working fluid through the choke, providing the necessary rigidity of hydraulic shock absorbers for this ship, is formed in an automated control system and sent to the chokes. Dissipation of ship motional energy and its stop during berthing impact onto the safety device by the flow of working fluid through the choke of the hydraulic shock absorber and setting of the safety device to the position along the lock for ship passage through the lock are carried out.EFFECT: allows to extend the damping stiffness range of the safety device, reduce impact loads on the ship and the power elements of the safety device, which will reduce the volume during maintenance and repair.1 dwg
FIELD: mining engineering.SUBSTANCE: tailing pile contains sections separated from each other. The bottom of the sections is shielded by a strong film of polymer material on which a layer of limestone 300-400 mm with grain dimension 3-10 mm is placed. On the layer of limestone, drainage pipes with a diameter of 200-300 mm, which is resistant to acidic attack. The tailing dump is filled with wet storage, and the storage of sands in a dry state.EFFECT: invention makes it possible to improve the ecological safety of tailings storage by removing dissolved toxic substances from the sand column through the drainage wells into a layer of limestone located at the bottom of the tailing pond and in a settling pond.5 cl, 3 dwg
FIELD: construction.SUBSTANCE: method of earthen cement concrete diaphragm 3 plate control in a ground dam 2 includes the fiber optic temperature sensor 5 laying along the entire area of the earthen cement concrete diaphragm 3 from the side of the tail pond 4 and its connection to the reading fiber optic transceiver determining the fault location and the leakage amount through the earthen cement-concrete diaphragm 3. To do this, waterproof shelves 1 of dawk are poured in steps of 1.0-3.0 m and slope i towards the lower dam 4 in the process of erecting a ground dam 2 along its height in the zone of the subsequent creation of a earthen cement concrete diaphragm 3 for directing the flow of water towards the location of a fiber optic temperature sensor 5 layed along the edges of the waterproof shelves 1. The width of the waterproof shelf 1 is taken to be at least 2.5 to 3 times of the width of the earthen cement concrete diaphragm 3 to prevent damage to the fiber optic temperature sensor 5 during subsequent drilling operations to create a earthen cement concrete diaphragm 3.EFFECT: location of damages in the earthen cement concrete diaphragm of the ground dam correct to 1m, quantitative assessment of the water filtration volume through damages, reduction in the time and costs of their detection and elimination.2 cl, 3 dwg
FIELD: power industry.SUBSTANCE: drive has the asynchronous machine (210), operated as the asynchronous motor/generator to control the gate. The machine (210) has the brake (230) with release the brake device. The method contains the following steps in which the emergency closing situation is detected and/or indicated, the brake (230) is released by the release the brake device in the event, when the insufficient power is indicated. The machine (210) is activated by the gravity force of the hydraulic gate shield or the roller gate. The machine (210) is operated automatically, at that the rotating field is formed. The machine (210) is operated in the generating island operating mode, in which the rotating field is generated automatically.EFFECT: creation of the method and device to control the hydraulic gate or the roller gate drive, which during the emergency shutdown provides the gate shield release passively.24 cl, 4 dwg
FIELD: measuring equipment.SUBSTANCE: method for controlling the process of folding the airlock double-leaf gates, includes feeding a signal to the actuators for moving each of the lock gate leaves and controlling the position of each gate leaf by forming a mathematical model in the computing device, the inputs of which are connected to the signal outputs of the encoder. Based on the data from the encoder signal outputs, a spherical coordinate system is formed with the coordinate origin at the center of the vertical leaf rotation. Monitoring the position of each leaf point at its rotation is performed in this coordinate system. The angular position of the inner gate leaf walls against the lock chamber walls is determined by the value of all the encoders, as the azimuthal angle in the coordinate system to the point, which is the connection point of the absolute rotary encoder shaft with the measuring rods of the linear encoders. The position in the space is defined within the same coordinate system by the azimuthal and zenith angles of the same point, the latter of which is calculated on the basis of the data from the signal outputs of the linear encoders and constants, that define the position of the points on the leaf surface against its horizontal rotation axis, obtained empirically during the installation and erection works in relation to the device for implementing the method. The device for controlling the process of folding the airlock double-leaf gates contains an absolute rotary encoder and an absolute linear encoder installed on each leaf, a computing device, the inputs of which are connected to the signal outputs of the encoder, a leaf moving drive. The device contains an additional absolute linear encoder, the measuring rod of which, together with the measuring rod of the established absolute linear encoder, is connected to the absolute angular encoder shaft. The hull of the absolute linear encoders, being on some arbitrarily selected distance from each other, are connected to the lock chamber wall located close thereto. The absolute angular encoder is fixed rigidly on the rod bracket so that the gate leaf rotation axis and the absolute angular encoder shaft rotation axis are aligned. There is a gap between the highest point of the leaf rotation axis and the rod bracket, avoiding the rotation axis friction of the leaf and the mounting, and the rod bracket is rigidly connected to the gate leaf. The signal outputs of the additional encoder are connected to the computing device inputs. The device installation is made with the gates being folded, the measuring rods of the absolute linear encoders must make a right angle to the airlock chamber wall.EFFECT: improving the accuracy of controlling the position of the hydraulic gate leaves.2 cl, 4 dwg
FIELD: mining.SUBSTANCE: invention relates to mining and can be used during forming of hydraulic-mine dumps for wastes storage. The method of buildup of small-section dam of sludge storage comprises routing of discharge 9 and distribution 10 pipelines, the sludge storage filling with sludge 1. After filling with sludge storage with sludge 1 to design level 16 at its crossing with internal unfilled part of the dam slope 21 a thrust soil bar 3 is back filled, then major part of hoses 6 out of geotextile filtering material are laid with output of residual part on top edge of the dam 2. After hoses 6 filling with sludge 1 their joints are sealed with mixture of sludge for m the sludge storage with cement 17. The mixture of sludge and cement 17 is added after hoses 6 filling and final density achievement by sludge deposit in hoses.EFFECT: technical result is reduced labour intensity of buildup of small-section dam due to the hoses laying by single tier, assurance of tightness of hoses connection due to joints filling with mixture of sludge and cement, increased usable volume of sludge storage and service life of the small-section dam.3 cl, 3 dwg
FIELD: construction.SUBSTANCE: water retaining dam consists of the inlet section 1, the upstream apron 2, the retaining structure 3, behind which the stilling basin 4 with a wall 5, the downstream apron 6, the downstream apron terminal device 7 and the outlet section 8 are installed sequentially. The retaining structure 3 consists of a weir 9 with sidewalls 10 which are arranged at an angle 55÷75° to the flow axis. The wall 5 of the stilling basin 4 is formed as a broken line repeating the drain front path of the retaining structure 3. At the center of the downstream apron 6, diffusers 11 are installed in staggered order. The sidewalls 10 of the weir 9 at the junction points to side abutments 12 are reinforced with land abutments 13.EFFECT: increased reliability and improved performance characteristics of the structure.3 dwg
FIELD: construction.SUBSTANCE: invention relates to hydraulic engineering and can be used in erection of reclaimed waste storage facilities with a large consumption of water and its losses during operation. The method of erection of an alluvial hydraulic structure includes the operations on arrangement of a primary dike 5 of alluviated waste, an impervious screen, a settling pond with process water 4 for creation of an impervious screen. For formation of impervious screen to prepared inner slope of the primary dike 5 and the base 1 of the structure the continuous layer 2 of swellable material of natural moisture is bulked, for example, highly active sludge of metallurgical plants, on the graded surface of which the layer 3 of alluviated waste placed, and then through the pipeline system it is fed by process water from the settling pond 4 for wetting, full saturation, increase in volume and full compression of the continuous layer 2 of swellable material.EFFECT: invention is aimed at increase the impervious effect of alluvial hydraulic structure to prevent contamination of soil and groundwater and reduce its construction costs.1 dwg
FIELD: construction.SUBSTANCE: ground dam erected on weak bases in the regions with high seismic activity, includes the curved with convexity toward the upstream aperture the orifice 2 made of the viscoplastic material, formed with bulges in the form of local bosses 4 in zones of change of the aperture curvature 2, the concrete gallery 3 with the acquis in the top and impervious element 6 in the base 7. The lower part of the orifice 2 is formed as a closed shell 5 enclosing the concrete gallery 3 and conjugate to the impervious element 6 in the base 7. The concrete gallery 3 in the cross section is formed as a Reuleaux triangle. Also one of the corners of Reuleaux triangle is located in the top acquis part of the gallery. Orifice material in bosses has greater fluidity than in other parts of the orifice.EFFECT: improved reliability of the ground dam at high seismic and static loads.3 dwg
FIELD: construction.SUBSTANCE: dam erected from soil material such as both frozen and thawed types is built on a frozen base 1. The soil dam contains the upper 3 and the lower 4 thrust prisms between frozen impervious element 2. The inner zone of the lower prism is formed from coarse rockfill 5. The ridge and surface of the bottom slope are covered with the waterproof layer 6, for example, formed by clay soils. On the dam ridge the discharge pipes 7 are installed with a certain step along the dam length for interconnecting with atmosphere and for forced air circulation in the rockfill. The discharge pipes 7 can be also additionally equipped with a vacuum pump with automatic switching system. On the lower berm of the lower prism laying the perforated pipeline 11 with large holes is being laid. In the cavity of the pipeline 11 a small perforated pipeline 12 with holes is placed. the small perforated pipeline 12 is connected with the chamber in the form of a diffuser and through the constricted section - with a chamber. The air supply pipe for supply of hot compressed air is connected by one end with the compressor 16, and by another end it is connected with the active ejector nozzle. The ejector is also coupled with the air supply pipe for supplying of cold compressed air from the impeller 22 with the nozzle. The air supply pipes are provided with check valves. For the air intake and shutoff the valves 25 and 26 are installed. In order to control the air pressure in the rockfill 5 the air pressure sensor 27 is installed.EFFECT: constant temperature mode in the macroporous rockfill and on the lower berm of the lower prism increases the efficiency by increasing the total air access into the rockfill area in severe ambient temperatures of the north building and climate zone.3 cl, 4 dwg
FIELD: construction.SUBSTANCE: invention relates to hydraulic engineering, particularly, to concrete dams longitudinal galleries-tunnels designs. in transverse cross-section concrete dam 1 longitudinal galleries-tunnel 5 is made in form of Reuleaux triangle. Besides, one of Reuleaux triangle corners is directed to dam 1 upper part.EFFECT: technical result is increasing of gallery strength and stability.1 cl, 1 dwg
FIELD: mining.SUBSTANCE: present invention presents coal mine underground reservoir artificial retaining dam. Artificial retaining dam 30 is embedded into safety coal pillar 2 and surrounding rock around auxiliary strett 1. Artificial retaining dam 30 cross-section has shape of arch, and artificial retaining dam 30 concaved section in form of arch faces underground reservoir. Coal mine underground reservoir artificial retaining dam 30 connection method with safety coal pillars 2 and surrounding rocks includes steps of: selection of artificial retaining dam 30 fencing sections between safety coal pillars 2 in auxiliary strett 1; performing of artificial retaining dam 30 with cross-sections in form of arc, which concave section faces underground reservoir; cuttings in safety coal pillars 2 and surrounding rocks around auxiliary strett 1 to form recesses 32; in recesses 32, introduction of plurality of screws into safety coal pillars 2 and surrounding rocks and cement output under high pressure to form artificial retaining dam 30 in recesses 32. Retaining dam improves artificial retaining dam resistance on sliding and can be effectively alleviate impact effect on dam bodies as a result of sudden increase in water pressure.EFFECT: improved connection between artificial retaining dam, safety coal pillar and surrounding rock.7 cl, 3 dwg
FIELD: construction.SUBSTANCE: invention relates to hydraulic engineering, in particular to the rigels, and it can be used as a basic horizontal bearing element in the culvert structures or planar surface navigable shutters. Rigel of flat surface shutter comprises pressure zone 1 and non-pressure zone 2, interconnected by corrugated wall 3 with holes 4 arranged on the entire surface, with distance between them, equal in height of not less than 1/5 of wall height and not more than 1/2 of corrugation pitch length. Non-pressure zone 2 is different in shape from the pressure zone 1 along its longitudinal axis. Non-pressure zone 2 has parabolic shape along its longitudinal axis or it, in bearing sections at the distance X from the axis supports has fractures. Distance X is determined by formula where L is span of rigel.EFFECT: technical result of the invention is to reduce material consumption and rigel flexural strength.1 cl, 4 dwg
FIELD: hydraulic engineering.SUBSTANCE: invention relates to hydrotechnical construction, in particular, to installations for storage of bottom alluviums, generated as of the soil dumps along shore areas during cleaning of small rivers, ponds, channels and other water bodies from bottom of alluvial deposits. Installation for storage of bottom alluviums includes sections of alluvial dumps 4, placed in the meander zone, diversion dyke 5 made in the form of a guard along the whole perimeter of sections of alluvial dumps 4, and water discharge channel 14. Installation is additionally equipped with water-discharge diversion dyke 6, water-collecting channel 12, open tank 13, horizontal transverse drain elements 9, horizontal longitudinal drain elements 10 and vertical drain elements 11. Water discharge diversion dyke 6 is arranged in perimeter of diversion dykes 5 between the most remote from water body sections of diversion dykes 5 and constructed with low relative to other diversion dykes 5 height with possibility of overflow of water excess through it from sections of alluvial dumps 4 in water intake channel 12. Vertical drain elements 11 are located in a body of stored bottom alluviums and linked with horizontal transverse drain elements 9 or horizontal longitudinal drain elements 10 and are arranged in the base of sections of alluvium dumps 4. Horizontal longitudinal drain elements 10 are made linked with water channel 12 with the possibility of ingress of water from them from water saturated body of stored bottom alluviums into water intake channel 12.EFFECT: technical result is reduction of time for creation of installation for storage of bottom alluviums, reduced costs for its erection, increased efficiency of used construction equipment during its construction and prevention of silting of riverbed downstream from the point of creation of installation for storage of bottom alluviums.5 cl, 3 dwg
FIELD: hydraulic engineering.SUBSTANCE: invention relates to methods of recycling water supply means of hydraulic mining operations using settling tanks, constructed on terrain. Method involves erection of sludge pond, receiving and wash of hydraulic mixture, formation of settling tank, clarification, accumulation and storage of process water in it, discharge, intake and return of process water in circulation water supply system by means of pump station in a settling tank. At the place of discharge of industrial wastes screen is installed, parallel to the surface of sludge pond at the distance providing optimum sump capacity and determined depending on the water influx, flow rate and width of the settling tank. Pump station is installed directly behind the contours of the screen. Screen is installed above water surface, on the value of maximum wave attack.EFFECT: technical result is upgraded efficiency of settler due to cleaning of process water, and decrease in the range of transportation of pressure water.1 cl, 1 dwg
FIELD: mechanical engineering.SUBSTANCE: hydraulic structure 1 attachable de-icing coating, for example, HPP grooves and gates is implemented in 2 versions. Plate 2, 3 of polymer anti-adhesive material coating based on ultra-high molecular polyethylene with molecular weight of not less than 3 million carbon units with addition of from 2 to 4 % of either molybdenum disulphide, or titanium dioxide, or from 5 to 10 % of graphite, having increased linear expansion coefficient, are fixed on structure with temperature gaps. Plate fastening is made without gaps in one fixation point either by one fixation line with T-shaped grooves and clamps, in other plate attachment areas enabling possibility of its thermal expansion or shrinkage by making fastening seats elongated, diverging from fixation hole or by extended performance of grooves or performing grippers with moving plates. Flexibility range in each assembly is 0.014…0.02 from remoteness to center or fixation axis. Adjacent plates edges have chamfers forming angle of no less than 40°.EFFECT: under thermal compression and expansion of plates icing peels off, reducing damage from icing.7 cl, 16 dwg
FIELD: machine building.SUBSTANCE: invention relates to devices intended for fluid intake from a source, mainly water from a reservoir, rivers, channels, trays, pools, tanks, etc. Device for fluid intake comprises inlet funnel, float installed with possibility of vertical movement, telescopically connected pipes, bend with discharge pipe and elements, connecting float with ends of funnel. In middle part of float there is a cone-shaped air feed pipe with upper and lower protrusions and directed towards inlet funnel. Telescopically connected pipes are tapering downwards. Connecting elements are spring-loaded.EFFECT: simplified design and higher reliability.1 cl, 1 dwg
SUBSTANCE: invention relates to waterworks and can be used in construction of concrete dams of pressed concrete. Method involves execution of dam consisting of upper 1 and downstream 2 walls from pressed concrete connected by longitudinal concrete walls 3 with inner cavities between them filled with stones, with lamellar laying and compaction of concrete in upper 1 and downstream 2 walls and parallel with laying and compaction of stone into inner cavities.
EFFECT: after laying and compaction of concrete layer in upper 1 and downstream wall 2, laying of corresponding layer stone into inner cavity between upper 1 and downstream 2 walls is hardened cement mortar surface layer of stone within sections of erection of longitudinal walls 3, between them cells 4 are formed filled with stones, with further compaction of entire surface layer using rollers to make sections of reinforced cement mortar longitudinal walls 3 connecting upper 1 and downstream 2 wall, and between them - vertical cells 4 filled with stones.
1 cl, 2 dwg
FIELD: hydraulic engineering.
SUBSTANCE: invention relates to hydraulic engineering, specifically to erection of earth dams with cryosolic curtain in body and base. Earth dam on permafrost base is made from base of dam to its crest of soil and comprises upper 3 and local 4 prisms with slopes and anti-filtration cryosolic curtain in body and base, created by means of vertically installed freezing devices 5. On external surface of crest 2, lower 4 and upper 3 prisms of dam to water line 1 there is heat-insulating material 6. Method of creating earth dam with sealing cryosolic curtain in body and base by means of vertically installed freezing devices 5 comprises laying heat-insulating material 6 on surface of crest 2, lower 4 and upper 3 dam slope to water line 1. Placing heat-insulating material 6 is performed after freezing thawed soil layers of body and base of dam and maximum cooling by freezing devices 5 and heat exchange of surface of dam with cold ambient air in end of first winter after dam construction. Heat-insulating material 6 can be a layer of soil or fixing anchors. Freezing device can be mounted in previously drilled wells, which are embedded in permafrost at a depth of not less than h1 equal to 1.0-1.5 m, with pitch providing for closure of ice-ground cylinders, formed by separate devices. Tests on method for creating sealing cryosolic curtain in soil structures were conducted on protective dam on Lake Krugloe in Yakutia, showing effectiveness of method.
EFFECT: technical result of present group of inventions is maintaining in warm season upper surface of sealing cryosolic curtain at a higher level and reduced as a result, height of dam and flow rate of building soil.
4 cl, 2 dwg
FIELD: agriculture.SUBSTANCE: invention relates to agriculture and can be used for land reclamation and spring irrigation of haymaking lands where streams flow as well as in other industries when short-term increase of water level in stream is required. Temporary water retaining structure made of ice and snow includes wooden poles accumulating snow and ice. Wood poles, embedded into the bottom of stream and frozen inside it as piles are coated with top layer of dry grass and bulrush.EFFECT: invention provides higher productivity of haymaking and grass lands.1 cl, 2 dwg
FIELD: energy.SUBSTANCE: disclosed solution, being part of a hydraulic structure, unlike conventional dams does not form a constant reservoir and controls floodgate or controls it only partially; and serves as a barrier, providing possibility of automatic lifting of level of water only in freshet period, and controls weir; directing partially by natural bed, and a large part of destructive floods is directed into a new bed or tunnel arranged for carry-over of these excess in another region on other side watershed (pool other river) for further rational use as intended. Dam body which is divided into bays and consists of base 2, supports with counterforts 1, upper above supports of structure 3 with roadway 4, flood gates, valve gates 6, controlling drain, mechanisms for maintenance 8 of valve gates 6. In all spans there are unclosed openings 5 for continuous sluiceway equal to total cross-section area required for drought flow. Dam comprises a removal channel, mark for bottom 9 is received at level not below top of water discharge openings 5 to excessive flood waters in another direction. Once drain approaches low, switching water into pool other river is stopped and reduced natural drainage system, without any disturbance of environment. It is possible, when in middle span such half-dam provided with gate (valve gate) to allow passage of small vessels in inter-flood periods. Disclosed solution is alternative since it does not disturb natural spawning because in body of half-dam there are openings that are unclosed during entire period and are located in tail, that is, lower bed of river, which provides free travel of fish in both directions. Cleaning also occurs since openings provide drain for not less than drought flow period, and also downstream flood water flows are added, and water to clean enough and practically does not disturb environment. Other positive aspects of present solution should also be noted: 1) because mirror of upper pond of considerable area is formed only for a short time (at time of floods), and then drops over time (decreases), loss associated with evaporation, which is specific for reservoirs, considerably reduced; 2) there is no silting; 3) as a result of absence of stagnation water of upper pond there is no problem "blossoming" (overgrowing algae).EFFECT: it is possible also to use present solution stripping, that is, have half-dam on both sides of watershed and movement of natural floods arrange in either side depending on circumstances, thus alleviating thus their effect.1 cl, 3 dwg
FIELD: shipbuilding.SUBSTANCE: safety device consists of flexible element 1 in the form of a chain or rope passed through navigable span of gateway chamber, and two bogies 3 arranged to move along the walls of chamber of gateway at navale ship 10 on flexible barrier element 1 and connected with its ends. On side walls of bogies 3 on outer side there are resilient inserts secured via friction shoes with possibility of contact of the latter with friction guides installed on horizontal surfaces of gateway chamber walls with symmetric narrowing in direction of movement of bogies. Taper angle is calculated by formula: tgα=Vn−Vk2L, provided that: Vn-Vk≤2A, where α is the angle of convergence, Vn-distance between friction guides in initial position of bogie ; Vk - distance between friction guides at bogie stopping; L - design of ship braking path, A - limiting amplitude of deformations of elastic inserts.EFFECT: technical result consists in improvement of power consumption of the safety device, which allows to increase braking stroke ship in the gate chamber and reduce on the flexible element.2 cl, 2 dwg
FIELD: construction.SUBSTANCE: according to the disclosed method, monolithic reinforced concrete body gravity dam with height H0 (cm) is made convex towards reservoir in the form of riverbed compass roof. Dam body height H0 is designed and made in the longitudinal horizontal sections with radius R (m). Concrete dam body is reinforced with metal steel rods, which are welded as spatial array. Dam body is equipped with operational drain water lines with height HIN (cm) of the upper water pond in the reservoir up to the height HH (cm) of the lower pond. Turbines of electric current generator are set at HG water level in the river behind the dam body in its discharge channel. At the input operating spillway is equipped with movable hydraulic gates. Stator of electric current generator is solidified in the seat of the dam body, and generator rotor is fixed in the stator through the cover by means of threaded connection of bolts and nuts. Horizontal angle of arched dam body contact at the level of the upper pond HIN of water in the reservoir is accepted based on model tests as equal to Angle of arch dam body contact in longitudinal horizontal sections with water from reservoir is maintained constant - const throughout the height H0 of the dam body, and the radius of the dam arch body on the side of reservoir are accepted as variable and equal - varir, where - distance between coasts in longitudinal vertical section along the height H0 of the dam body filled with water, - internal friction angle of water. Threaded connection of rotor cover with stator bowl of the current generator and monolithic attachment of the stator bowl in the dam body are calculated for pull force Nmax, which is calculated by formula. Contact angle of the arch dam foundation bed with underlying base material in transverse and, if possible, in longitudinal vertical sections is kept as permanent - const, where - internal friction angle of the base material. At uniform distribution of contact stresses on lateral sides of the dam body in contact with water reservoir and air atmosphere receiving submersion depth h of the dam body without gravity side crack formation from the upper pond HW of water in the reservoir is equal to hW≥pWcr./γB (cm), where (kg/cm2)-maximum critical breaking concrete dam body pressure, which is calculated by formula, and without gravity crack formation from upper edge of the dam body on the opposite side of the dam body from the reservoir-at the depth of hН≥pWcr./(γB+γW) (cm) , where γW= 0.001 (kg/cm3)-specific weight of water, and condition of absence of surface crack formation on the dam body at depth h > hW and h > hH respectively on the side of reservoir and on the back side of the dam body receiving dependence (kg/cm2)-, where [σT]ST -tolerable yield stress upon expansion of metal fittings for which the dam concrete body is preliminary reinforced with strained steel rods.EFFECT: disclosed method and produced in the process of its implementation device prevent accident risk of hydraulic power plant during water discharge in reservoir by preventing surface and subsurface formation of cracks.2 cl, 6 dwg
FIELD: machine building.SUBSTANCE: drive contains a hydraulic cylinder, installed on a carrying frame, and connected with a gate by a rod. On the carrying frame a controlled pickup with a hydraulic drive is located.EFFECT: increased reliability of the gate operation.4 cl, 3 dwg
FIELD: construction.SUBSTANCE: reserve spillway of a soil dam includes one (according to version 1) or several (according to version 2) soil eroded inserts in the form of sections 13, which represent a dam or a dike with a top elevation lower than in the retaining structure. The eroded insert is made in the form of a prism of trapezoidal cross section arranged in the water-conducting part of the reserve spillway. Along the perimeter of the trapezoidal cross section of one (according to version 1) or several (according to version 2) sections 13, as well as on upper and lower slopes there is a protective coating arranged from a polymer geomembrane, which is filled during construction with soil similar to dam body. To increase efficiency of evacuation of eroded inserts at several sections 13 of the spillway (according to version 2), the top elevation of eroded inserts 6 is set: for the first section - at the FPU elevation, for the second - at the elevation (FPU-0.5 m), for the third - at the elevation (FPU-1.0 m), etc., providing for serial connection of first the last section, then the last but one, and so on. The main spillway 14 is located in the soil dam body at the elevation of the normal retaining level (NRL).EFFECT: safe passing of rare-frequency flood and prevention of soil retaining structure damage.9 cl, 5 dwg
FIELD: construction.SUBSTANCE: concrete unit 1 comprises a heat removal device made in the form of at least one coaxial pair of vertical pipes 2 and 3 connected to atmosphere. The outer pipe 2 of larger diameter (heat removal) is embedded into the concrete unit 1. The pipe 3 of smaller diameter is made as capable of dismantling and is portable. The upper edge of the inner pipe 3 is located above the upper edge of the outer pipe 2. In process of device operation, automatic heat removal is provided from the concreting unit 1 without human interference. Heat of exothermic reaction of hydration is carried through the outer pipe 2 by rising current 4 of air heated by concrete, and continuous inflow 5 of atmospheric air to the bottom of the heat removal pipe 2 is provided via the pipe 3 of smaller diameter coaxially arranged relative to the outer heat removal pipe.EFFECT: increased crack resistance of units for concreting of massive structures, simplified design of a device for heat removal from concrete.5 dwg
FIELD: construction.SUBSTANCE: group of inventions relates to hydraulic engineering, namely to double-leaf gate of floodgates arranged in a water flow. Door leaf (1, 101) for double-leaf gate (100) includes metal covering sheet (2) withstanding pressure (P) exerted by liquid, rigidly attached to at least two posts (4, 6) located on each of its sides (24, 26). Metal covering sheet (2) has the shape of part of cylinder (C2), where longitudinal axis (Z2) of cylinder (C2) is parallel to posts (4, 6). Each post (4, 6) is elongated as a whole according to generatrix (Z24, Z26) of cylinder (C2) and includes at least one support member (40, 60) located so that is projects relative to metal covering sheet (2). Each support member (40, 60) includes support surface (42, 62) so that support member (40, 60) can be borne against the side wall of lock chamber (5) or against another door leaf (1, 101) of double-leaf gate (100). Support surface (42, 62) of each support member (40, 60) is elongated as a continued part of plane (P4, P6), which is located at a tangent to metal covering sheet (2), on the level of side (24, 26) of metal sheet (2), which corresponds to this support member (40, 60). Support surface (42, 62) of at least one support member (40, 60) is perpendicular to middle plane (P40) that is parallel to plane (P4, P6) that is located at a tangent to metal covering sheet (2) and that is a continued part of middle strand (P2) of metal covering sheet (2), on the side of the above said support member (40, 60). With that, support surface (42, 62) of at least one support member (40, 60) is flat. Double-leaf gate (100) includes two door leaves (1, 101), with that, such ratio as numerator - width (L100) of double-leaf gate (100), which is measured between two most distant posts (4, 104), and denominator - curvature radius (R2) of cylinder (C2) is 0.6 to 1.8.EFFECT: reduction of stress concentrations and increase of resistance of door leaves to fatigue wear.14 cl, 9 dwg
FIELD: power industry.SUBSTANCE: invention relates to hydraulic engineering, specifically to creation of the water flow and its control using pipes to drive the hydraulic turbines, devices of water systems, and protection of fill dams against washaway. To create water flow the siphon is used, at its ends the gates are installed, and in its top point a hole is made closed by the tight plug. The siphon intake end is lowered in the source water reservoir, and drain end is inserted in beginning of the distribution pipe, its internal diameter is selected higher then outside diameter of the siphon pipe. For the water flow start gates are closed in series, the siphon is filled with water up to plug, hole is tightly closed by plug, and gates are opened. The created water flow is directed in the required or safe for people and environment direction via the distribution pipes, trays or other water ways. The dam protection against washaway (in case of the water overflow over the dam) is performed by means of the siphon gates opening and water overflow over the siphon installed on the dam crest. Method is ensured using the device containing siphon with controlled gates in input and output ends, and with hole in its top point closed by tight plug, distribution pipes, buffer or water discharge devices, trays and water ways. To ensure the required higher intensity of the water flow the single flows of several specified devices installed in common or different source water reservoirs or acting water flows are combined in common rather powerful flow.EFFECT: possibility of increasing of energy power with significantly lower specific and absolute expenses, and fill dams protection against washaway upon threat of dam pond overfilling.8 cl, 2 dwg
FIELD: construction.SUBSTANCE: protective hydraulic structure includes two closed flexible covers filled through nozzles with water or air, each of which is provided with two elastic side ribs located along generatrixes of the covers. The covers are connected to each other with neighbouring internal ribs of the covers. Closed flexible covers have different diameters and are connected at some distance from each other of at least three diameter of the cover of smaller diameter. Ratio of diameters of closed flexible covers is 1:2. To both external ribs and end walls of closed flexible covers there tightly attached is a flexible cover with a float in the form of a single flexible cylindrical closed cover provided with air supply nozzles and nozzles for filling its inside volume with water.EFFECT: improving efficiency of the proposed quick-erected hydraulic structure of low specific weight; providing the possibility of its repeated installation and re-installation in different places with minimum labour costs.3 dwg
FIELD: construction.SUBSTANCE: invention relates to hydrotechnical construction, namely to soil dams built in areas with high seismicity. The invention is aimed at the reduction of cost of the structure and increase of the damping ability of the seismoisolating dam layer. The aseismic soil dam built in narrow cross sections includes the main soil part of the dam body and the seismoisolating layer with dynamic characteristics significantly differing from those of the soil of the main part of the dam body. The seismoisolating layer is located along the whole contact of the dam with the base and boards of the cross section (canyon). The seismoisolating layer is formed by the installation into this layer of inclusions in the form of similar utilised metal-cord tyres from cars, which cavities are filled with gumbrine. The tyres are arranged parallel to the base and boards of the cross section (canyon) with an equal step chequerwiseboth in the same row, and between rows, the quantity of which is no less than two.EFFECT: design features of the offered design of the seismoisolating layer allow weakening more effectively seismic waves at the expense of an increased damping and diffraction ability.2 dwg
FIELD: construction.SUBSTANCE: earthquake resistant subsurface dam being constructed in broad sites, comprises the upper main part of the dam body and seismic isolation layer of the dam body located between the upper main part of the dam body and base, dynamic characteristics of which are significantly different from those of subsurface of the main part of the dam body. Seismic isolation layer is formed by installing inclusions in the form of one-type recycled metal-cord tire casings of heavy vehicles in this layer. The cavities of these tire casings are filled with gumbrine. The tire casings are arranged horizontally at regular intervals in staggered order and in the horizontal plane. In the vertical plane the tire casings also arrange at regular interval in staggered order with number of rows not less than two. Design features of the proposed structure of seismic isolation layer permits to attenuate seismic waves more effectively due to the increased damping capacity and diffraction.EFFECT: cheaper construction and improvement of damping capacity of seismic isolation layer of subsurface dam.3 dwg
FIELD: construction.SUBSTANCE: invention relates to hydraulic engineering. A flood gate comprises mainly a flat lining sheet and multiple thin central walls, arranged along the lining sheet and substantially parallel to each other. Each central wall is connected to the lining sheet and comprises several disconnected cavities. The flood gate comprises at least one stiffening element made by connection of several parts, which are installed into a line along the longitudinal axis of the stiffening element and are arranged between central walls, not stretching via the central walls. Each part is connected to the side of at least one central wall around one of cavities.EFFECT: flood gate has high strength.10 cl, 4 dwg
FIELD: construction.SUBSTANCE: hydraulic protecting structure includes the interconnected cells with vertical waterproof flexible walls made of the outer and inner shells. Shells are interconnected by internal, upper and lower bridges. Cavities between the outer and inner shells are filled with the compressed air. The upper bridges are connected by means of braces with anchors. The cavity between the inner flexible walls of cells is filled with ballast material. The upper bridges of vertical watertight flexible walls are designed in the form of removable rigid rods. The lower bridges are solid made of flexible waterproof material. The outer shells of vertical walls are equipped at the edges with single fittings for supplying, discharging the compressed air or liquid into the internal cavities of cells.EFFECT: improving the efficiency of the proposed pre-fabricated hydraulic protecting structure of low specific weight, providing the possibility of its repeated installation and reinstallation in different locations with minimal labour costs.1 dwg
FIELD: construction.SUBSTANCE: method involves installation of waterproof cross fencing in winter in the pre-selected place on the bed of mountain river. Dam, forming the upper pool in front of it, is constructed above the fencing down-stream, from which short-term water discharges are executed at negative air temperatures. Each of the discharges is interleaved by pause in time until the freeze of the discharged water and water on the surface of the upper pool, forming two ice-catchment basins, lying on the ground of the river bed. One of the basins is located above the fence, and the other - above the dam. Cycle of basin formation is repeated for several years until the thickness of the ice in basins reaches the value greater than 80 m. Ice-catchment basins in the southern latitudes of the Earth are formed at the altitude greater than 2500 m above the sea level.EFFECT: irrigation of lands on piedmont territories throughout the spring-summer period.2 cl, 1 dwg
FIELD: construction.SUBSTANCE: sluice gate contains the housing 1 with the guides 2 in which the sluice 3 is installed which is connected with the lifting device. The housing 1 and the sluice 3 are made with devices for sluice preload through seals to the sealed surface 4 of the housing 1. The lifting device includes the running screw 5. The guides 2 of the housing 1 are designed inclined. To the vertical sluice 3 the slides 6 or rollers are fixed which partially enclose the inclined guides 2. Slides 6 or rollers can move along the inclined guides 2 together with vertically installed sluice 3. The axis of the running screw 5 is located obliquely to the vertical sluice 3 and parallel to the inclined guides 2 of the housing 1.EFFECT: when opening the sluice gate the sluise together with seals leaves parallel to the sealed surface and seals aren't damaged by the sealed surface, when closing the sluice gate the sluice together with seals parallel approaches to the sealed surface and the seals aren't damaged by the sealed surface.2 dwg
FIELD: construction.SUBSTANCE: static, dynamic or vibration sensing is carried out preliminary at the selected points to the depth from 1 m with respect to the top of the earth fill. At the same time the samples of compacted soil of undisturbed structure are selected in order to determine the moisture and density of skeleton of the specified soil from several drilled wells at points at a distance of not more than 1 metre in plan from sensing points. Laboratory researches of standard compaction with definition of compacting factor depending on the density of soil skeleton, are carried out on the selected samples of soils from the body of compacted fill. Construction of correlation dependence is performed between the specified values of compaction factor and values of the resistance to penetration of standard cone into the soil during sensing, taking into account determinations previously performed in the laboratory followed by evaluation of compaction quality of the earth fill.EFFECT: improving the accuracy of definition and identifying the areas of non-compacted soil for its subsequent local postcompaction.3 cl
FIELD: construction.SUBSTANCE: invention relates to the field of hydraulic engineering, in particular to the construction of high-head dams made of local building materials with unearth impervious elements. Earth dam contains the thickened concrete diaphragm 1 as impervious element. Diaphragm 1 is separated form the concrete pad 10 by the perimeter seam 11 and longitudinal inspection galleries 5 are made in it at intervals by height. Horizontal joints-cuts 9 closed for inspection galleries 5, which prevent the disclosure of joints toward the downstream pool, are made on the upper edge of concrete diaphragm 1. Part of concrete diaphragm 1, located above its foundation part, is made of particularly hard concrete mixes pressed by layers. Screen 7 of asphalt concrete or rolled concrete enriched with cement mortar is also made on the upper edge of diaphragm 1. Concrete diaphragm 1 is cut into separate sections by vertical functional-sedimentary joints 8.EFFECT: increase of strength of impervious element of the dam and possibility of carrying out the required repair is provided.2 cl, 2 dwg
FIELD: construction.SUBSTANCE: invention relates to the field of hydraulic engineering and can be used in the construction of rock-fill dams on rivers in hard-to-reach areas with limited resources of natural building materials suitable for the construction of watertight element. Diaphragm of rock-fill dam on the rocky foundation 1 is made in the central area by filling the longitudinal cavity with water-resistant material. This cavity is formed between the prefabricated panels 5 installed back-to-back one upon the other. Process longitudinal cavity is formed by placing the prefabricated panels 5, supported by a vertically mounted metal tubular studs or metal studs 3 with longitudinal grooves, for example I-beams, channel beams, rails, interconnected by rods 4 into the single frame, providing the overall stability of the diaphragm during the construction period. Metal tubular studs 3 are made with holes for injecting the tiered impermeable and plastic material 6 of the diaphragm, filled firstly with rock macrofragmental material.EFFECT: safety of rock-fill dam, arranged between the steep rocky banks in the narrow alignment, with characteristically high flood levels in the river is improved, construction periods are reduced.1 dwg
FIELD: construction.SUBSTANCE: invention is designed for use in hydraulic engineering, in particular, to create dams of tailing dumps in areas with significant anthropogenic load on water facilities. The method includes preparation of the base for the dam and laying of soil material into the dam bank. Soil material is represented by anthropogenic bottom deposits of contaminated water facilities having permissible filtration capacity and sufficient strength according to hydroeconomic calculations. Anthropogenic bottom deposits are previously prepared by dehydration in containers from geotextile material to moisture of 40-50% and compaction under by gravity on a specially prepared site. Afterwards containers with dehydrated residue are delivered to the place of construction by dump trucks and are laid by mobile cranes in layers. The promising direction is usage of this device in areas of far north, since in these areas usually there are no sufficient soil materials suitable for creation of antifiltration elements. Local materials used to fill the dam bank are in permafrost condition and their usage causes significant difficulties. Utilisation of heterogeneous bottom deposits is provided, environmental compatibility and fail-safety of dam operation increase, erected structures are more stable.EFFECT: reduced filtration losses, timing of construction, minimised complexity and labour intensiveness of works.
FIELD: construction.SUBSTANCE: sluice gate comprises a frame 1 vertically installed in a tray and a shield 2, capable of vertical displacement inside between side ribs of a frame bar. To the shield 2 a slider is fixed with thread, which may move along the thread during rotation of a worm screw 6 passing via the slider, connected with a drive 7 fixed in the upper part of the frame. The drive 7 provides for rotation of the worm screw 6 in one or opposite directions. The shield 2 has at the side of the upper reach a shell with stiffening ribs. The shell of the shield 2 is made in the form of a trapezoid with a small base, facing towards the bottom of the frame 1. End walls of the shield 2 shell and inner end walls of the bar in the lower part of the frame 1 have the same angle α of inclination from the vertical line towards the bottom of the shield 2. The shield 2 has seals, which may be pressed by their working surface to the sealed surface of the frame bar 1. Seals are arranged on opposite inclined ends of the shield 2 shell and the small base of the shield 2 shell, between the frame 1 and the above ends of the shield 2 shell. Each of frame 1 bars in its underwater part changes from its partially underwater inclined part into the vertical above-water part. The length of the inclined part of each frame 1 bars is more than the length of each of end walls of the shield 2 shell and is parallel to inclined end walls of the shield 2 shell.EFFECT: invention makes it possible to eliminate friction of seals against a frame during opening and closing of a gate, which increases their service life.3 dwg
FIELD: construction.SUBSTANCE: water retaining dam comprises a stepped weir, a supply and a drain sections. There are plunged basins in the stepped weir, as well as side abutments to couple top and bottom abutments. There is a retaining structure built in on the inlet section of the stepped weir. The retaining structure comprises matched coaxial hollow semicylinders with a common axis of rotation. The inner rotating semicylinder is divided into sectors by links. The external semicylinder is in static position and is built into the weir body by a flat face aligned upwards. The inner semicylinder is tight and filled with water from upper reach. Semicylinders are emptied by water self-flow into the lower reach.EFFECT: increased efficiency of retaining structure operation reliability.3 dwg
FIELD: construction.SUBSTANCE: system includes one or more sections 1 consisting of two internal water-filled envelopes 2, external protective envelope 3, which are tight on two lateral sides. The system includes diaphragms 10 and anchors 9 at the bottom of the sections and a water drain of nappe-shaped profile 5 with flexible outlet tray 7. A parabolic shape of tray 7 is supported with longitudinal water-filled envelopes 8. Sections 1 are connected to each other by means of flexible braces 4. An erection method of the system of mobile protective dams involves selection of a route, a layout and filling of section 1. Two internal water-filled envelopes 2 are filled by means of envelope filling device 6. Then, external protective envelope 3 is filled. Anchors 9 come forward under action of pressure inside the external protective envelope by means of diaphragm 10. Then, by means of flexible brace 4 there installed to the end face of section 1 in the route direction is the next section 1 of the water drain of nappe-shaped profile 5, and flexible outlet tray 7 with longitudinal water-filled envelopes 8 is attached. After that, depending on distance of the protected territory, one or more sections 1 are attached.EFFECT: safety at rise of the level in natural or artificial water courses, at breakthrough of hydraulic structures, discharge of excess water course to natural wells, thus not subjecting populated localities to flooding.2 cl, 2 dwg
FIELD: construction.SUBSTANCE: method is to create an artificial barrier which helps to reduce the hydraulic cross section of the river. River ice cover softens when exposed to sunlight. A simultaneous destruction of a large area of the ice cover of the river occurs, and an artificial barrier in the form of ice jams made of small ice floes is formed.EFFECT: floodwater level control on problem areas of the river.