Hydraulic engineering and foundations and soil-shifting (E02)

E   Fixed constructions(158735)
E02            Hydraulic engineering; foundations; soil-shifting(35388)

ethod of strengthening foundation // 2642762
FIELD: construction.SUBSTANCE: method of strengthening a foundation includes drilling a well, installing a pipe-injector, and pumping a fixing composition. After installing the pipe-injector, along the lateral surface of the two foundation sides and into the previously performed well, through which the injection has already been carried out, electrodes are immersed. A powder additive of an electrically conductive material is introduced into the fixing material, and while pumping the fixing composition, electrical resistance of the foundation body is measured between the pipe-injector and each of the electrodes.EFFECT: increasing the reliability of the injection fixing of the foundation stone masonry due to ensuring the possibility of quality control during the production process.1 tbl, 4 dwg

ethod of identification and elimination of defects produced in ground piles // 2642760
FIELD: construction.SUBSTANCE: method of identification and elimination of defects produced in ground piles includes well formation, installation of reinforcement cage in it, laying communication lines, supplying solidifying composition into the well, for example concrete mixture. Before installing the reinforcing cage, the electrodes are fixed on it, and they are connected to the communication lines. After supplying solidifying composition, its electrical conductivity is monitored, and if there are defects is the wellbore, partial pumping of solidifying composition is made, the defect is eliminated, and then solidifying composition is again supplied into the well.EFFECT: increased reliability of ground piles by providing the ability to control the wellbore continuity and eliminate defects in the production process.1 tbl, 4 dwg

Protective coating of foundation // 2642685
FIELD: construction.SUBSTANCE: protective coating of the foundation contains a waterproof material, glued on the protected surface, docked with the help of sealed joints. A waterproof tent material of full factory readiness with an internal layer of a heater is used as a part of protective coating. The coating also contains an additional external protective layer in the form of a plastic mesh covering and encircling the waterproof tent material along the contour of the protected surfaces.EFFECT: increasing the reliability of the protective coating of the foundation and ensuring its frost resistance, simplifying the technology of creation of protective coating of the foundation by reducing the number of waterproof layers in the coating composition.2 cl, 1 dwg

Composite-type rockfill dam // 2642643
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

Underground tank method // 2642587
FIELD: construction.SUBSTANCE: method consists in digging a pit for the tank, installing the foundation, installing the tank in the pit and attaching it to the foundation, testing the mounted tank, placing it on the bottom of the pit bottom around the tank of the prefabricated movable formwork equipped with elements for capturing and moving the formwork in the upper part and filling the space between the tank and the pit. The formwork is prefabricated, it is made of a set of side and end elements, and the filling is carried out by layer filling of the space between the formwork and the tank - with sand, and between the formwork and the pit - with soil, followed by ramming of each layer. Then, the formwork is refilled with sand and the pit is refilled with soil after the formwork is moved upwards, along the tank until the pit is fully filled and the formwork is removed.EFFECT: increasing the economical efficiency of the tank installation due to the use of prefabricated formwork, reducing labour intensity, reducing the sand consumption.4 cl, 4 dwg

Adjustment of torque for drive on front wheels // 2642204
FIELD: transportation.SUBSTANCE: power system of the front wheels can provide the possibility of independent power control on each wheel. Direct control is provided by the average and differential torque of the front wheels.EFFECT: increase of controllability.20 cl, 4 dwg
ethod of mounting screw pile from polyangular profile pipe and passage rotor for mounting screw pile from polyangular profile pipe // 2642196
FIELD: construction.SUBSTANCE: passage rotor for mounting screw pile from polyangular profile pipe includes a housing with leading gears, driven rotary gear having a polygonal profile hole in the middle, longitudinally and rotationally movable grip with a similar profile polygonal hole, inserted in the hole of a driven gear. Cross-section of profile hole of the rotor is governed by the replaceable inserts, which are fasteners with screws to the longitudinally movable rotating pile grip, wherein each insert has a size and shape that is different from the size and shape of other inserts in the set.EFFECT: improvement of the quality of installation of piles with preservation of its bearing capacity due to exclusion of incision and punching piles for its installation, method of rotation of pile with profiled shoulder anywhere on the pile trunk, providing free turning, wringing of piles in clay, precluding the use of drilling rigs and crane carriages.6 cl, 5 dwg

Combined irrigation system // 2642095
FIELD: agriculture.SUBSTANCE: invention relates to hydraulic reclamation, mainly to land drainage in agriculture with automatic regulation of groundwater levels. System is located on a reclaimable massif, divided into fields with a drainage-humidifying collector-drainage network, which has a regulator of the collector mouth in the form of a spillway. System consists of a combined drainage-humidifying collector, to which drainage collectors are connected through water intake wells. Water intake wells at drying-humidification collector are equipped with two-way automatic level controllers. Collector mouth regulator consists of well 12, divided by partitions 13, 14 and 15 into four tanks 16, 17, 18 and 19. Control chamber 20 in vessel 17 is connected by stem 21 to cone-shaped valve 22 passed through chamber 20, and stem 21 is connected to lever 23 of the articulated actuator. Vessel 17 comprises level float sensor 25 rigidly connected to stem 26 connected by a hinge to one end of lever 23, and the other end of lever 23 is provided with adjustable weight 27 located in vessel 16. Lever 23 is fixed to rotational axis 24 on the abutment in the upper part of partition 13. Stem 21 is located in guides 28 in the cover of chamber 20. Control chamber 20 is fixed to nozzle 29 fixed to the collector mouth by pipe 30. Vertical partition 14 has inlet nozzle 32 located at the bottom, the end of which flexible hose 33 is provided. Upper end of flexible hose 33 is attached to float 34 with drain diverging nozzle 35. Self-regulating mechanism consists of nozzle 35, float 34 and flexible hose 33 with inlet nozzle 32, and has a hydraulic connection in the form of a channel with vessel 17 according to the principle of communicating vessels. Discharge pipe 36 is inserted with one end into water discharge vessel 19. Vertical partition 15 has pipeline 37 in the middle, connecting vessels 18 and 19, while the self-regulating mechanism is located in vessel 18. Working volume of vessel 18 is set to receive water from vessel 17 with outlet nozzle 35 at the top with float 34, and also in the upper position of float 25 in vessel 17.EFFECT: use of the invention will make it possible to automate the process of regulating the groundwater level, improve efficiency and reliability of operation, reduce the hazard of groundwater level rise and reduce the development of secondary salinization processes.1 cl, 2 dwg

Horizontal settler // 2641753
FIELD: construction.SUBSTANCE: horizontal settler includes a rectangular reservoir at the bottom of which a silt pit is made. In the upper and lower parts of the reservoir there are guide rails parallel to the walls of the reservoir. The horizontal settler also contains a blade as a scraper, guide rollers through which the cables of the respective electric winches are thrown. Inside the pit is a retractable sludge tray containing an axis that can be pivoted 180°, the top of the pit on the wall is a cable-tightened cable to the electric winch for hermetic closure of the silt pit.EFFECT: invention ensures the continuity of the settler, reduces the cleaning time, protects against floating waste, increases the reliability of the device.2 cl, 3 dwg

ethod of manufacturing piles with widened heel // 2641684
FIELD: construction.SUBSTANCE: method of manufacturing piles with a widened heel includes forming a well, widening it at the bottom and filling the formed cavity with concrete. Said well widening is carried out by feeding a gas-forming fluid into the bottom well part at the widening height, by means of which the soil is weakened, bringing it to the state of gas-water pulp, which is removed.EFFECT: increasing the efficiency and reliability of the pile manufacturing, reducing the material and labour consumption of erecting a pile with a widening.3 cl, 1 dwg

Hydraulic drive of the backhoe working equipment // 2641631
FIELD: construction.SUBSTANCE: hydraulic drive of the backhoe working equipment contains a hydraulic tank, first and second fixed delivery pumps, connected by the first and second pressure hydraulic circuits with the relevant groups of the slave hydraulic cylinders of the working equipment with the ability to manage through the first, second and third hydraulic distribution valves installed consistently and with general flow channel, communicated with the hydraulic tank. In the first pressure hydraulic circuit, between the first and the second and the third hydraulic distribution valves, a back-flow valve, a pressure relay and an electro-driven hydraulic distribution valve are installed. An electric-driven hydraulic distribution valve is installed between the first hydraulic distribution valve and the back-flow valve, and the pressure relay is between the back-flow valve and the second hydraulic distribution valve. At the same time, the pumps productivity is determined by the necessary speed of movement of the actuating hydraulic cylinders of the respective working bodies.EFFECT: increased efficiency of the hydraulic drive of the backhoe working equipment.2 cl, 1 dwg

Anti-resonance base (versions) // 2641556
FIELD: machine engineering.SUBSTANCE: anti-resonance base for equipment includes a supporting part of the equipment, an anti-resonance layer and a foundation. The anti-resonance layer is connected to the foundation by vertical rods and represents a horizontally arranged reinforcing mesh filled with binder solution, fixed to the supporting part and to the vertical rods, the supporting part is a steel frame.EFFECT: provision of guaranteed transferring of vibration from equipment through the supporting part of equipment to foundation, increased service life and possibility of long-term operation of dynamic equipment.12 cl, 4 ex, 2 dwg

Hinge action unit for foundation slab with adjustable forces // 2641357
FIELD: construction.SUBSTANCE: hinge action unit for a foundation slab with adjustable forces includes the rotation axis of the hinge unit made of a steel pipe with welded steel plates glued with foam plastic inserts, raised relative to the slab sole by a distance equal to half the slab height.EFFECT: reducing the material consumption of the foundation slab design, reducing the volume of formwork operations.7 dwg

Design of foundation slab with adjustable forces // 2641356
FIELD: construction.SUBSTANCE: design of a foundation slab with adjustable forces, divided into sections by hinge action units, in which the hinge axes form a rectangular grid in the plan, intersecting in each span in the action places of the maximum span bending moments.EFFECT: reducing the material consumption of the foundation slab design due to optimization of its reinforcement in two directions, along the entire slab area.2 dwg

ethod of destructing ice cover by vessel in compressed air flow // 2641355
FIELD: transportation.SUBSTANCE: method for destructing the ice cover by a vessel in a compressed air flow is proposed and done by excitation of resonant bending-gravity waves in the ice when the vessel moves. Simultaneously with the translational movement of the vessel an additional load is applied to ice, which is directed downwards and forming a gas-dynamic jet from the high pressure impeller, the nozzle of which is located below the bottom of the hull at an angle in a vertical plane to the longitudinal axis of the vessel and perpendicular to the horizontal, from fastened movable horizontal partitions on the axis of rotation, located in the forebody and after body of the vessel through the simultaneous fore-and-aft balance of the vessel by the stern. The high-pressure jet is sufficient to create maximum fore-and-aft balance of the vessel by the stern, resulting from the pressure of the gas-dynamic jet at a given height of opening of movable horizontal partitions that create aerodynamic lift capacity on the forebody of the vessel.EFFECT: invention helps to increase the efficiency of ice cover destruction.3 cl, 3 dwg

Hydraulic drive of pneumatic wheeled excavator // 2641049
FIELD: machine engineering.SUBSTANCE: in the known hydraulic drive of the pneumatic wheeled excavator, an additional circuit is included in the servo control system consisting of two pedal control units and enabling execution by each of them, at least two functions of hydro-valve EITHER with two inputs and one output branch and two electro-hydraulic distributors with two outputs and one input branch each. The first pedal control unit is connected to the first input branch of hydraulic valve OR the second pedal control unit is connected to the second input branch of the OR hydraulic valve, the stroke hydraulic motor and the switching distributor, the output branch of the OR hydraulic valve is connected to the input taps of both electro-hydraulic distributors, the output taps of the first electro-hydraulic distributor are connected to the address spool of the stroke, the output taps of the second electro-hydraulic distributor are connected to the address spool of blade supports.EFFECT: reduced fatigue, increased comfort and safety for the operator, increased the functionality of the excavator.1 dwg

ethod for erecting earth dam // 2640832
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

ethod for creating additional reserves of water at restoration of peat bogs // 2640829
FIELD: ecology.SUBSTANCE: method contains a structural scheme and includes a storage pond 1 where water from a freshwater source is fed through channel 2, a water outlet 3, ice sites 4, a pumping station 5 connected to a water outlet 3 and an underground pipeline 6 with hydrants 7 and connected to them sprinklers 8, pond-accumulator 9 of freshwater, pond-distributor 10 for supplying water to bogs peateries. For collecting and supplying freshwater, pond-accumulator 9 also includes channel 13, dug along the central longitudinal axis with a bias to collecting place to the pond-distributor 10, and at the end of the channel 13 areaway is made. Storage pond 1, pond-accumulator 9 and pond-distributor 10 are sequentially located in the direction of the main slope of the terrain. Ice sites 4 with pipelines 11 with valves 12 are connected to the storage pond 9. To spray the layer of black material onto the ice mass, a heat-insulating coating is applied of hydrophilic capillary-porous material of the soil or in the form of peat by spraying using natural climatic factors, in particular, under the action of solar radiation, which is intended to accelerate the melting of ice with the transformation into the accumulation of water in summertime. Ponds 1, 9 and 10 are hydraulically connected to each other by pipelines with valves. After the water enters the pond-distributor 10, it is supplied into the open channel 18 to fill the peat bog 17, which is divided into compartments. The compartments of the peat bog are separated by earthen bridges with the water outlets made in them with regulating structures. Thus, this allows creating conditions for the restoration of peat bogs on the cutover bogs.EFFECT: providing an environmental and ameliorative environment more reliably and reducing the risk of emergencies around the cutover bogs.4 cl, 8 dwg
ethod for compacting bases formed by weak mineral soils // 2640625
FIELD: construction.SUBSTANCE: method for compacting bases formed by weak mineral soils includes making a well, filling a compacting material into the well, and creating the compacting impact by a hollow tubular working tool on the compacting material to form a compacting column. Preliminarily, engineering geological survey of the base soil is carried out, and the values of the strain modulus, the Poisson's ratio, the angle of internal friction, the specific cohesion, the specific gravity, the initial porosity coefficient of the weak mineral soil are determined. Then, the effective value of the strain modulus εi at expanding the compacting material in the well is calculated by the initial and specified porosity coefficient of the weak mineral soil according to the given dependence. Thereinafter the column spacing pitch is defined by the selection method in a range from one to three diameters of the columns, which gives the value of the design base deformation modulus, the necessary increase of the well radius in the process of indentation is calculated by the given dependencies. The well is made by means of indenting a tool in the base soil, filling the compacting material into the well is carried out through the working tool cavity, and the compacting impact for forming a compacting column is carried out by indenting the working tool into the compacting material. Additional engineering and geological survey are carried out on the site, the deformation modulus of the compacted soil between the columns, and the actual average deformation modulus of the base as a whole is calculated according to the given dependence. Then it is compared with the design one, and if the actual average base deformation modulus does not correspond to its design value, additional columns are installed between previously installed ones.EFFECT: increasing soil compaction productivity, reducing material consumption and labour intensity.5 cl

Percussive action device (versions) // 2640602
FIELD: mining.SUBSTANCE: percussive action device comprises a body with a branch pipe and inlet and exhaust hole/holes, a movable hammer installed in the body, forward and return stroke chambers, a guide element for hammer, a through channel in the hammer for communicating chambers of forward and return stroke, a shut-off valve. An annular groove is made on the outer surface of the hammer in the front part thereof. The body contains an anvil, on the inner surface of which there are a front annular projection and a limiter of the return stroke of the hammer. The shut-off valve is made in the form of an elastic ring installed in said annular groove of the hammer with the possibility of interaction with the inner surface of the body. The limiter of return stroke of the hammer is made in form of recesses on the inner surface of the body, and the surface of the front annular projection is made spherical or conical, the elastic ring is rectangular or round in cross-section. The guide element for the hammer is made in the form of an annular row of projections on the inner surface of the body or on the outer surface of the hammer. The device has an additional chamber of direct stroke, an additional shut-off valve, an additional annular groove, a rear annular projection provided on the inner surface of the rear part of the body. According to the first version, exhaust hole/holes are in the rear side part of the body. The device has the isolation valve made in form of elastic ring, the annular stepped groove in the branch pipe, hole/holes in the branch pipe. The isolation valve is installed in the annular stepped groove in the rear part of the direct stroke chamber with the possibility of interaction with the outer surface of the elastic ring with the inner surface of the branch pipe, and hole/holes in the branch pipe are located in its end projection for communication of direct stroke chamber with the additional direct stroke chamber. According to the second version, the device has additional exhaust hole/holes in the front side of the body, and the guide element for the hammer is made in form of annular projection on the outer surface of the hammer or on the inner surface of the body. The device has the isolation valve made in form of elastic ring, the annular stepped groove in the branch pipe, hole/holes in the branch pipe. At that, the isolation valve is installed in the annular stepped groove in the rear part of the direct stroke chamber with the possibility of interaction with the outer surface of the elastic ring with the inner surface of the branch pipe, and hole/holes in the branch pipe are located in its end projection for communication of direct stroke chamber with the additional direct stroke chamber.EFFECT: improved device reliability.2 cl, 3 dwg
Wall drainage // 2640600
FIELD: construction.SUBSTANCE: wall drainage includes a perforated drainage pipe fixed to the building foundation, a porous filter, and a cushioning layer of a macro fragmental material. The drain pipe is arranged under the pile foundation grillage, and the filter from a fibrous material is made double-layered, the outer layer of which is fixed on the pipe by means of a split connection, for example, a textile hooked tape, and has a free end clamped in the cushioning layer.EFFECT: ensuring the drainage operation reliability, the protection of underground parts of buildings from groundwater during prolonged peat sedimentation in foundations and mudding filters with particles carried by a groundwater flow, increasing the water level lowering depth.4 dwg

ethod of arranging driven pile // 2640467
FIELD: construction.SUBSTANCE: method of arranging driven pile, in which a well informed by dipping into the ground of the casing string with a closed lower end to the spreading base layer of soil, fill the casing string with tight or loose material, remove the casing string, generate a broadened base in support of the base layer of soil, immerse the reinforced concrete pile with the penetration of its end into the broadened base. To form the well, a casing string with a self-opening tip is used, the immersion of which is carried out with penetration into the spreading base layer of soil. Filling the casing string is first carried out with a rigid ground material or a rigid concrete mix, and then with loose or rigid ground material. The non-extractable shell-tube, equipped with a rim-nozzle on its lower end, with its penetration into the bearing layer of soil, is penetrated into the ground outside the casing string coaxially with it. When removing the casing string with a self-extracting tip, the shell-tube is simultaneously filled with filling material located in the casing string, followed by immersion of the reinforced concrete pile into the filled shell-tube up and forming a broadened base and enlarged compacted area in base layer of soil in and with increasing density of filling material within the lateral surface of the submerged pile.EFFECT: increased bearing capacity of pile and pile foundation, reliability of its construction, expansion of the field of application on ground conditions, increased efficiency as a whole.3 cl, 5 dwg

ethod for wind turbine operation // 2640462
FIELD: power industry.SUBSTANCE: wind power plant having a foundation (210) configured to be mounted on the ground (10) or to the ground (10) having a ground level and a tower (102) that is located on the foundation (210). The foundation (210) has a foundation plate (211) and a foundation base (212) on the foundation plate (211) located above the ground level. The foundation plate (211) is located below the ground level. A connecting element (213, 214) for the pulling cables is provided on the base member (212), having a plurality of apertures (213a, 214a) for receiving the pulling cables (230). The pulling cables (230) are tensioned from the underside (213b, 214b) of the connecting element (213, 214) by means of the head (240) of the pulling cables. The foundation plate (211) and the base plinth (212) are cast in one piece from the concrete poured in place. The distance between the upper side of the foundation plate and the underside of the connecting element for the pulling cables is of a size providing enough space for the workers to pull the pulling cables.EFFECT: improvement of the foundation of the wind power plant.6 cl, 8 dwg

arine ice-resistant platform // 2640345
FIELD: construction.SUBSTANCE: marine ice-resistant platform comprises a base plate 1 made with the possibility to adjust its buoyancy, coaxially interfaced with a support shell 2, on which an upper structure 3 is mounted with the possibility of vertical movement along it. The base plate 1 is equipped with vertical through channels adapted for entering piles and securing them therein. The plant is equipped with several means of piling, made with the possibility to move around the perimeter of the upper structure, for which purpose the latter is equipped with at least two rail guides spaced apart vertically. Protective casings 4 of the piling means are made with a length more than the water area depth at the platform location and are installed in clamps of carriages interacting with said rail guides. The clamps of the carriages are made with the possibility to switch off the locking of the casing 4 therein, and the casing 4 is preferably mounted coaxially with its longitudinal axis with the axis of the vertical through channels of the base plate. Pile extraction means made in the form of crane plants are located on the deck of the upper structure 3, are made in the form of a vibratory pile driver and a protective casing 4, of a diameter larger than the diameter of the vertical through channel of the base plate, made with the possibility of coaxial airtight docking with the base plate equipped with water and/or slit removing means. In addition, each protective casing 4 is equipped with a vertical channel made as a chute projecting from the casing section, provided with a flight of stairs.EFFECT: possibility of efficient operation of an ice-resistant platform in shallow areas of the continental shelf with weak foundation soils, while increased platform mobility is ensured, because it is adapted to transport in the assembly and installation, high ice-resistance of the platform due to the use of pile fastening of the base, high mounting and dismantling speed of the pile foundation in case of platform relocation to another site.2 cl, 12 dwg

System for localization of maritime area oil pollution // 2640289
FIELD: chemistry.SUBSTANCE: system for the localization of the maritime area oil pollution consists of mobile modules installed in stages, each of which includes an emergency response vessel, a working motorboat, booms arranged in a special way, an oil-gathering unit and temporary containers for collecting oil-water mixture. The mobile modules are installed in such a way that each boom is placed J-shaped. The distance in length between the working motorboats of adjacent modules - pitch ΔS - is 150-200 m, the dstance in width between them - displacement ΔL - is 100-120 m. The distance between the emergency response vessel of a previous module and the working motorboat of a subsequent module - overlapping ΔH - is 30-40 m. The booms arranged J-shaped are installed with the pitch ΔS therebetween, where their lowest points are displaced at the ΔL value.EFFECT: increased efficiency of water area purification from oil and oil products due to the implementation of multistage removal.2 cl, 1 dwg

Device for discharge and regulation of water withdrawal depth from sump // 2640279
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

ethod of water encroachment of peatbogs, preeminently of cutover peats // 2640278
FIELD: construction.SUBSTANCE: water encroachment of cutover peats is made as a constructive scheme, including reservoir 1, accumulating water from local runoff, retaining and regulating structures 2 located at the inlet to bypass channel 3, and below main pipeline 4 with closures 5-7. The main pipeline 4 is connected to the ring channels 8, which are connected to each other by means of the water discharge structures 9 with the closures 10-12. Ring channels 8 are made as fenced side walls, made of material in the form of planed boards 13 with slots between them on the one side, and on the other side (the outer side), annular water-retaining dams 14 are made. The dams 14 are poured from the local soil of the peatbog and they serve as a road for moving light motor vehicles on it. Conductive ring channels 8 are made inclined, allowing water to be transferred in a circular manner to fill the encroached area with water. The conducting ring channels 8 are laid with a distance increasing from the center of the cutover peat to the periphery.EFFECT: design will improve the efficiency of local runoff for encroachment of the whole massif, to resume the marshes to their initial approach, the peat deposit with aquatic vegetation, reduce the energy costs for encroachment the cutover peats and improve the ecological situation, and has the ability to manage the differentiated flooding of each section of the cutover peat.3 cl, 1 dwg

Working machine // 2640062
FIELD: machine engineering.SUBSTANCE: invention relates to a working machine comprising a hood cover, a tank of the second cooling circuit located under the hood cover, and a structure support element not connected to the hood cover for supporting the tank of the second cooling circuit; a tank of the second cooling circuit which is detachable from the hood cover in the operating mode of the working machine and detachably connected to the structure supporting element, where the hood cover has an attachment unit for fastening the connecting element, and the tank of the second cooling circuit has a connecting unit designed to create a detachable connection between the connecting part and the attachment unit on the hood cover.EFFECT: increase of operational reliability.7 cl, 3 dwg

ethod of manufacturing drill-driven pile // 2640059
FIELD: construction.SUBSTANCE: method of manufacturing a drill-driven pile includes drilling a leader well of radius R0 in the soil, filling a part of the well with hardening grout, followed by inserting the pile in the wellbore up to the design mark. The pile is inserted under the action of a static load, and the radius of its upper part is chosen taking into account the ratio 1.2R0<R1<1.6R0.EFFECT: increase of bearing capacity of the pile, increase of manufacturability, reducing the cost, material consumption and the foundation construction time, reducing negative impacts on the soil of the foundation and the structure of the building, increasing the accuracy of its implementation.5 cl, 4 dwg

Transport vessel transportation system // 2640051
FIELD: transportation.SUBSTANCE: transport system is designed to provide the possibility of transferring vessels through dams of hydropower facilities, weirs and terrain sections between different water basins. A launching trolley 2 with a self-propelled vessel transportation water-filled chamber 3 is lowered into water. A vessel 4 enters the chamber 3, and its shutter closes. The launching trolley 2 with the vessel transportation chamber 3 and the vessel 4 rises to the level of the horizontal slip 5. The vessel transportation chamber 3 with the vessel 4 is moved to the horizontal slip 5, and moves on it to the launching trolley 2 on the other side of the obstacle to be overcome, enters it, after which this launching trolley 2 descends downward along vessel transportation paths 1 to a level sufficient for the vessel 4 to come out of it into the open water area. In the presence of a horizontal vessel transportation path 6, the vessel transportation chamber 3 with the vessel 4 from the launching trolley 2 is moved to a self-propelled transport trolley 7, which moves it to the other end of the horizontal vessel transportation path 6. If there is a curvilinear section 10 on the horizontal vessel transportation path 6, the vessel transportation chamber 3 with the vessel 4 from the self-propelled transport trolley 7 is moved to an additional self-propelled transport trolley 11, on which it moves to the end of the curvilinear section 10, where it moves to the launching trolley 8 and descends to the level sufficient for the vessel 4 to come out of it to the open water area.EFFECT: simplifying the design of the vessel transportation system and expanding its functional capabilities.3 cl, 3 dwg

Prefabricated reinforced concrete fore shaft of multiple application // 2639766
FIELD: construction.SUBSTANCE: invention can be used in the construction of underground structures such as "wall in the soil", namely for arranging a fore shaft used while executing a monolithic trench "wall in the soil". The prefabricated reinforced concrete fore shaft consists of prefabricated reinforced concrete elements of the L-shaped section, connected by means of embedded metal plates. The fore shaft elements are connected by means of at least two keys engaged by toothings, the keys being reinforced. On the upper edges of the prefabricated fore shaft in the same plane with the concrete surface, metal embedding angles are mounted, which are anchored in the concrete.EFFECT: increasing the stiffness, bearing capacity and reliability of the interface nodes of the prefabricated fore shaft elements, reducing the labour costs, improving the structure installation quality, ensuring its durability and maintainability, which guarantees frequent use of the fore shaft structure and significantly reducing its cost.9 cl, 2 dwg

ethod for dispersants efficiency determination for elimination of oil spills in ice seas // 2639330
FIELD: ecology.SUBSTANCE: method for to determination of dispersants efficiency includes recording of the physical parameters when the phase of the liquid sample being examined and placed in containers is changed. During method implementation, at least four containers are filled with liquid at the same time, then oil products and a portion of dispersant applied dropwise are successively applied to the liquid surface in each container. Then the containers are shaken for a time equal to the natural dispersion time for petroleum products in the test liquid, and the contents of the containers is shock-frozen until it freezes completely. The frozen contents of the containers are then separated by two horizontal cuts into the upper, middle and bottom blocks. The middle and bottom blocks are removed from the container shell, and the resulting ice samples are melted and filtered separately. After that, the mass of the filtered residue of oil products obtained from each sample is measured. The dispersant efficiency of the is determined by the ratio of the weight of the filtered oil product to the total mass of oil products in the mixture placed in the test vessel, taking into account the natural dispersion determined at the zero stage of testing, where at the zero stage of testing, the natural dispersion of oil products in the thickness of the liquid sample to be examined is determined at least to the middle zone of test capacity and natural dispersion time.EFFECT: increased accuracy and speed of dispersants efficiency determination.2 dwg, 1 ex

otor grader // 2639226
FIELD: construction.SUBSTANCE: motor grader includes a wheeled propulsor, a sub-engine frame and a main beam, mounted on the propulsor and connected by a hinge and hydraulic rotation cylinders, to the front end of the main frame a traction frame with a turntable is hingedly mounted, on which a blade is mounted with mechanisms for changing its the cutting angle and extension, hydraulic cylinders for lifting and lowering the blade. The rotation axis of said hinge is located in the vertical plane with an inclination at an acute angle to the supporting surface of the motor grader, and the hinge body is configured to be fixedly rotated about an axis located in the vertical plane at an acute angle equal to the acute angle of inclination of the hinge rotation axis and having a geometric point of intersection with said hinge rotation axis. Wherein the geometric intersection point of the hinge axes and the hinge body can be located in the hinge body or outside the hinge body.EFFECT: expanding the functional capabilities of the motor grader, in particular by manageability, while putting the blade in the working position, maneuvering and working on slopes.3 cl, 1 dwg

otor grader // 2639225
FIELD: construction.SUBSTANCE: motor grader includes a wheeled propulsor, a sub-engine frame, a main beam, to the front end of which a traction frame is hingedly connected, having a turntable carrying a blade equipped with a mechanism for its extension and changing the cutting angle, hydraulic cylinders for lifting and lowering the blade, hingedly connected to the main beam and the traction frame, and a hydraulic cylinder of the traction frame offset, installed at an angle of 30-60° to the support surface of the motor grader, hingedly connected to the main beam and the traction frame; the turntable center axis is located in the vertical plane passing through the longitudinal cutting edge of the blade in its working position, and the axis of the hydraulic cylinder of the traction frame offset is located in the vertical plane passing through the turntable center.EFFECT: reducing the operational loads on the blade control hinges while increasing the manageability of the motor grader under the workload.1 dwg

otor grader // 2639224
FIELD: machine engineering.SUBSTANCE: motor grader includes a wheeled propulsor, an undercarriage frame and a spinal beam, to the front end of which a draft frame with a rotary circle is pivotally connected, to which by means of the cutting angle changing mechanism and the extension mechanism a blade is connected, connected to the hydraulic cylinders of its lifting and lowering, pivotally connected to the spinal beam and the draft frame, wherein the motor grader has a device for changing the distance between the hinge of fastening the draft frame and the turntable and / or the device for changing the distance between the front end of spinal beam and the hinge of fastening the draft frame, wherein the first of which is in the form of a hydraulic cylinder and is equipped with locks of intermediate and final positions, and the second is in the form of a screw mechanism with intermediate and end stop locks or with a self-locking nut.EFFECT: increasing the smoothness of the planned base, reducing the amount of permissible deviation from the set value.1 dwg
otor grader working equipment // 2639223
FIELD: construction.SUBSTANCE: working equipment of the motor grader includes a main beam, a traction frame hinged to the main beam, a blade connected to the traction frame by means of a turntable, a mechanism for changing the cutting angle of the blade, and a blade extension mechanism with respect to the traction frame, including the extension hydraulic cylinder. The lower guide and the upper guide are hingedly connected to the blade. The hinges are made with mounting clearances. The connecting hinges of the upper guide are made in such a way that their clearances made in the vertical plane are larger than the gaps disposed in the horizontal plane. The lower and the upper guides can be made of rectangular or circular cross-section.EFFECT: ensuring the required profile of the base to be prepared.2 cl

Working equipment of motor grader // 2639222
FIELD: machine engineering.SUBSTANCE: working equipment includes a center sill, a traction frame pivotally attached to the center sill, a blade attached to the traction frame by means of a rotary circle, a mechanism for changing the blade cutting angle, and a mechanism for extending the blade relative to the traction frame that includes an extension hydraulic cylinder, a lower guide having a circular cross-section, and an upper guide having a rectangular cross-section, in the upper guide with gaps relative to the upper wall to forms a vertical gap, a rod with elastic limiter of its vertical displacement is vertically arranged in vertical motion and connected to blade rear wall and is relative to the side walls to form a gap in horizontal, wherein sum of gap values in vertical exceeds the sum of gap values in horizontal.EFFECT: reliability of blade structure and mechanisms connected thereto under effect of extreme peak loads on the blade, including transverse blade movement during motor grader operation if necessary.1 dwg

Bulldozer equipment of motor grader // 2639221
FIELD: construction.SUBSTANCE: bulldozer equipment of a motor grader includes a blade connected to the motor grader by means of a lower beam consisting of two longitudinal hinge links rigidly connected to each other by means of a transverse link, two upper hinge links connected to the blade top and the motor grader, as well as a hydraulical cylinder for lifting and lowering the blade, hingedly connected to the motor grader and to the blade or to the lower beam. Each hinge of the connection of the lower beam with the blade and the motor grader is made in the form of a housing with a horizontal axis and a trunnion enclosing it, with forming axial mounting clearances between it and the housing, and each connection hinge of each upper link is also made in the form of a housing with a horizontal axis and a trunnion enclosing it, with the formation of axial and radial, not exceeding the size of the axial ones, mounting clearances between the trunnion and the housing.EFFECT: simplifying the installation and dismantling works of the bulldozer equipment of the motor grader in the field conditions.1 dwg

Ripper of digging machine // 2639220
FIELD: construction.SUBSTANCE: ripper of a digging machine comprises a lever connected to the frame of the machine by means of hinges, each of which has a horizontal axis, with a ripper tooth attached to the end of the lever at an angle to it, and a hydraulic cylinder for lifting and lowering the ripper lever is hingedly connected to it and to the frame, so that its longitudinal axis in the working position of the ripper makes up an angle of 80-100° with the plane passing through the horizontal axis of the hinges connecting the lever with the frame. In addition, the ripper of the digging machine can be provided with a mechanism for relative displacement of the hinge fixing the lever to the machine frame and/or at least one of the hinges connecting the hydraulic cylinder to the frame or to the ripper lever.EFFECT: ensuring the stabilisation of the vertical position of the cutting tooth part while changing the resistance to soil loosening due to eliminating the eccentric action of the reactive forces, it is also possible to transfer to the ripper a greater force generated by a basic digging machine without reinforcing the supporting ripper part, which increases the efficiency factor of a digging machine as a whole.2 cl, 1 dwg
Amortizing foundation rack for equipment // 2639204
FIELD: construction.SUBSTANCE: amortizing foundation rack for equipment includes a casing installed on the lower structure with a gap in relation to the upper building and a rod placed in the casing; the rack is equipped with a spring placed between the upper and the lower structures and covering the casing made from coaxial sections, the top outer one and the bottom inner one, with blocks installed on the upper end of the bottom section; the rod is made with a pivot hingedly attached to its lower end, suspended through cables enveloping the blocks to the bottom of the upper casing section. The spring, installed between the lower and upper structures of the foundation, is made in the form of a combined spring with an integrated damper, containing the lower and upper support plates, between which coaxially and concentric the external with right and internal with left angles of turns rise springs are installed. The lower support plate is the basis on which the lower flanges of springs are rigidly fastened, and between the upper support plate and the upper flange of the inner springs with left angle turns, a dry friction damper is installed consisting of two contacting with each other, lower and upper cylindrical disks. The lower disk is rigidly connected to the upper flange of the inner spring, and the upper disc is rigidly connected to the upper support plate. On the surfaces of cylindrical disks of the dry friction damper, facing each other, concentric diametric grooves are made on one of the disks, and bulges on another disk included with each other. As the materials of the lower and upper cylindrical disks of the dry friction damper, a sintered friction material based on copper may be used containing zinc, iron, lead, graphite, vermiculite, copper, chromium, antimony and silicon, with the following component ratio, by weight%: zinc 6.0÷8.0; iron 0.1÷0.2; lead 2.0÷4.0; graphite 3.0÷7.0; vermiculite 8.0÷12.0; chrome 4.0÷6.0; antimony 0.05÷0.1; silicon 2.0÷3.0; copper is the rest.EFFECT: increased vibration damping efficiency, reduced dynamic loads on the lower structure of the foundation.2 cl, 2 dwg

Reserve spillway for earth dams // 2639047
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
Service spillway of hpp dam // 2639046
FIELD: construction.SUBSTANCE: invention can be used to regulate the water level in water bodies that have a threat of flooding, for example, on the rivers Zeya, Amur and other similar reservoirs. Also for the transfer of flood waters from the Zeya Reservoir to the downstream to achieve 310 meters A.S.L. by 1 August so that the spillways do not cause damage to the base of the Zeya Dam. The service surface spillway at the Zeya HPP is supplemented by at least one classical aqueduct. The aqueduct is functionally a continuation of the service surface spillway. The conjugation with the aqueduct is made above the springboard of the service surface spillway. The aqueduct, from conjunction with the tray of the service surface spillway before reaching the horizontal position of the aqueduct, has smooth curvature, allowing the watercourse to undergo without spray, i.e. smooth flow to the outlet, which is made at a considerable distance from the dam base. The aqueduct is throughout rigidly fixed to the bearing supports. The aqueducts themselves are made of stainless steel, or of any known non-corrosive metal, or metal with corrosion-resistant coating and/or concrete and/or reinforced concrete and are solid or modular or precast solid. The aqueducts in the walls have branch pipes that are installed in the walls of the aqueduct at an angle 45°±25°. The branch pipe is curved relative to the aqueduct across the river, water enters the branch pipe at an angle 45°±25°, but exits from the branch pipe at an angle 80°±25°. The branch pipes are installed in such a way that the water jets emanating from neighbouring aqueducts collide with each other, and the water energy is quenched and its speed slows down. The speed of the water flow of the falling water and the water flowing through the aqueduct is 30-50 m/sec. If this stream is not retarded to the river current (2-3 m/s), then this stream will bring considerable destruction on the shoreline of the river, and also threaten the vessels in the riverbed.EFFECT: rational distribution of water resources and prevention of floods, lowering the level of reservoirs and protecting the dam base from destruction.7 cl, 2 dwg

Subsea power module // 2639011
FIELD: power industry.SUBSTANCE: subsea power module comprises a strong housing in the form of a cylindrical shell with spherical ends, reinforced by stiffener rings, power equipment including energy generation equipment and energy distribution equipment and is attached to the subsea foundation base by the connecting device. The strong housing is divided into at least two strong housings, one of which houses energy generation equipment, and the other - energy distribution equipment. The connecting device is made in the form of a cassette, and the strong housings are vertically integrated into the mentioned cassette with the possibility of their separate removal therefrom. Each strong housing is provided with a lid located at one of its ends, connected to the housing by means of detachable waterproof connection, and energy generation and distribution equipment inside the mentioned strong housings is mounted in a volumetric frame built-in with a ring clearance in the strong housing and fixed from the inside on the mentioned end lid. Above the stiffener rings, on the outside, along the perimeter of the cylindrical shell of the strong housing, guides are placed parallel to the generatrices of the shell.EFFECT: increased efficiency of the subsea power module.3 cl, 4 dwg

Wing casing for digging machine bucket, bucket and digging machine // 2639001
FIELD: construction.SUBSTANCE: invention relates to a wing casing for a digging machine bucket, made with the possibility of arranging at least partially on a tooth transition piece and/or at least partially on the lateral plate of the bucket for protecting wear-sensitive bucket parts. The wing casing comprises at least one self-locking mechanism for attaching to the bucket with the possibility of removable attachment.EFFECT: reducing the power consumption and the wear of the device.12 cl, 7 dwg

System and method of machine temperature control // 2638991
FIELD: machine engineering.SUBSTANCE: implementation of the method includes a first power generation device, a second power generation device, a first cooling fan hydraulically connected to the first power generation device, a second cooling fan hydraulically connected to the second power generation device, a controller and fan control device installed and connected by means of fluid between the first cooling fan and the second cooling fan. It is determined whether the first power generation device or the second power generation device is operating at the drive shaft speed below the threshold speed value. It is detected whether the diagnostic fault code is active with respect to the fan control device. The signal is sent to the fan control device. The fan control device is activated. Hydraulic power to the first cooling fan and the second cooling fan is provided depending on, whether the first power generation device or the second power generation device operates at the speed of the drive shaft above the threshold speed value. Working machines are also proposed.EFFECT: working machine cooling system is controlled.20 cl, 8 dwg

Single-pile-slabby foundation // 2638664
FIELD: construction.SUBSTANCE: single-pile-slabby foundation includes a pile and a reinforced concrete slab. The foundation consists of a single load-carrying pile and a load-carrying slab, coaxially loosely connected by means of a hemispherical hinge having a hemispherical recess at the slab base and a hemispherical pile head.EFFECT: improving the foundation reliability and stability, reducing the material consumption.2 cl, 2 dwg

Tooth and adapter to attach tooth to working machine // 2638385
FIELD: machine engineering.SUBSTANCE: tooth for fastening to edge of working machine bucket through the adapter has a cavity for inserting a part of said adapter, extending between said first and second opposite outer working surfaces from open end in the fastening end of the tooth to the lower end. At that, a cavity is limited by an inner wall, which comprises first and second internally facing inner walls which are inner surfaces connected, respectively, with said first outer working surface and said second outer working surface, and opposite side walls connecting the first and second inner walls to each other. At that, the cavity limits a rear portion passing along the Y axis and at least partially disposed between the plane defined by the X and Z axes, and open end of the cavity, front part passing along axis Y and located between the plane defined by axes X and Z, and the lower end of the cavity and stepped part connecting the rear part and the front part to each other, at that, in the rear part both first and second inner walls have a pair of substantially plane rear contact surfaces separated from each other by a rear separating area extending beyond the limits of said pair of first contact surfaces. The invention also relates to an adapter and to a connection between the tooth and the adapter.EFFECT: wear resistance, strength and reliability.26 cl, 41 dwg

Improved hydraulic fluid heating // 2638213
FIELD: transportation.SUBSTANCE: working vehicle is proposed, comprising: a chassis; at least one traction device supporting the chassis; at least one hydraulic actuator connected to the chassis; and a hydraulic circuit made with the possibility to control at least one hydraulic actuator. Wherein the hydraulic circuit comprises: a source of a hydraulic fluid; a feeding device communicating with the source and at least one hydraulic actuator for feeding the hydraulic fluid; a first return pipeline from the feeding device to the source, and a second return pipeline from the feeding device to the source. The first return pipeline comprises a first flow control device and a cooler. The first flow control device allows the hydraulic fluid to pass through the first return pipeline, when the pressure in the hydraulic circuit exceeds the first passage pressure of the first flow control device. The second return pipeline bypasses the cooler on the first return pipeline. Wherein the second return pipeline comprises a second flow control device allowing the hydraulic fluid to pass through the second return pipeline, when the pressure in the hydraulic circuit exceeds the second passage pressure of the second flow control device. Also, the hydraulic circuit comprises a controller in communication with at least one of the first and the second flow control devices for controlling at least one of the first and the second passage pressures, and a control valve in communication with the controller and a first check valve. Wherein the control valve has: the first, neutral, position, which provides pressure relief from the first check valve; and the second position, which directs pressure to the first check valve to increase the first actuation pressure of the first check valve.EFFECT: improving the control and efficiency of hydraulic fluid heating in a working vehicle.20 cl, 4 dwg

ethod of concrete dam construction in river canyon // 2638186
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

Ripper // 2637819
FIELD: wood industry.SUBSTANCE: hydraulic cylinder 6 of the lifting-lowering is hingedly attached to the support frame 2. The rod 7 of the hydraulic cylinder is hinged to the working beam 5 and to the upper link 3. The working beam 5 has a left projection 9 and a right projection 10. The middle tooth 11 is attached to the working beam 5. The last tooth 12 is attached to the left projection 9. The last tooth 13 is attached to the right projection 10. The rod 7 enters the cylinder 6 and, rotating the upper and lower links 3 and 4, lowers the working beam 5 to the ground. The ripper pulls back. The tooth 11 pulls out the roots in front of the tree. Teeth 12 and 13 pull the roots along the sides of the tree. The ripper goes to a tree and the bumper 8 presses on it. The tree, whose roots are pulled out of the earth, falls to the ground. The ripper of the proposed design beats trees, leaving no stumps.EFFECT: reduction of costs in the forest industry.3 dwg