Method of detachable connection of flexible concrete slabs and collapsible protective sheet

FIELD: construction.

SUBSTANCE: solution refers to construction universal protective concrete coverings. The method of connecting flexible slabs from concrete blocks with lifting eyes characterized by flexibility comprises arranging said slabs side by side, applying an eye of one slab to an eye of an adjacent slab and passing a rigid rod through the matched eyes for connecting the slabs. Then the rod is rotated and the eyes are twisted by said motion, after which, using the same rod, the twisting of the eyes is fixed to prevent its reverse spontaneous untwisting.

EFFECT: possibility of adjusting the size of clearances between the slabs and adjusting the slab position relative to adjacent plates in the sheet, increasing the compactness of the detactable connection assembly of slabs, increasing the stability during operation, exluding the need for fixing the connecting element in the underlying surface, increasing the connection security from external mechanical damaging effects.

8 cl, 12 dwg

 



 

Same patents:

FIELD: construction.

SUBSTANCE: invention relates to the methods for prevention of soil and groundwater pollution, in particular to the creation of concrete blankets on the landfills and storage of industrial, household and mainly liquid wastes. Subgrade 1 is prepared and protective layer 2 is arranged in it. Protective layer 2 is previously placed between two layers of geotextile 3 and 4. Mixture of sodium and calcium bentonitic clay 5 is used as the protective layer 2 in ratio of 75% Na-bentonite and 25% Ca-bentonite. Layer of mineral soil 6 with surface treated with fixing agent 7 is laid on top of the protective layer 2. Polymer liquid emulsion from wastes of polyisobutylene is used as a fixing agent at t=34-40C.

EFFECT: high operational reliability, durability, as well as stability of coating on the slopes and in case of subsidences of the base are provided.

2 cl, 1 dwg

FIELD: construction.

SUBSTANCE: group of inventions is related to hydraulic engineering, namely to the means for strengthening the surfaces of various objects of natural or synthetic origin, including the banks and beds of watercourses, surfaces of dams and dikes, as well as underwater lines of pipelines, bridge supports. Besides, the device may find application also in the field of construction. Unit of movable joint for web forming of concrete mats comprises the connecting element and fastenings. Fastenings are embedded into the concrete units of mats. According to the first option of the device, the units are asymmetric in plan and are designed with bevels, forming the cavity in the web. According to the second option of the device, the units are designed with recesses outside the plane of maximum size of the unit in plan, forming the cavity in the web. According to the third option of the device, the units are designed with bevels or recesses in its corner portion, forming the cavity in the web. Connecting element is disposed in the cavity indicated in options of the device, and is connected with fastenings with possibility of unit displacement.

EFFECT: protection of mat fastening against the mechanical damages and manufacturability of creation of movable joint of concrete mats are increased.

FIELD: agriculture.

SUBSTANCE: invention relates to environmental protection. For predicting the destruction of riverbanks, including the determining of adverse sites of the surveyed territories and ranking the sites, the coastal zone of the river is preliminary examined and the coastal areas with the square S equal to 1 m2 are selected. Then, on each of the selected sites the site square, covered with vegetation, is determined, they are summed and the square1 is obtained, m2. Then the rate of total projective covering soil with vegetation is calculated as the ratio S1:S,%, on the same sites the benchmarks are set at a distance of 2, 4, 6 meters from the shore horizon and the readings on the ground level on the benchmark are taken as the reference point of the condition monitoring of sites of riverbank. Then the wash height h, cm, is monthly measured at each benchmark, relative to the reference point, and then the average total index of wash height hav in three benchmarks is calculated, then a comparative analysis of the dynamics of the processes of soil losses from coastal areas of the river bank is performed, and on its basis the relationship is set between the value of the total index hav and the total projective cover, and then the degree of degradation of sites is evaluated, they are ranked to undisturbed and disturbed. Prediction of destruction of sites of the riverbank is made on the basis of the complex use of total index of wash height hav and total projective cover.

EFFECT: invention provides increase in reliability of prediction of destruction of river banks.

FIELD: construction.

SUBSTANCE: invention relates to coast-protecting structures. The method to protect river coasts at foothills consists in the fact that at first they horizontally lay reinforced concrete beams 4, to the ends of which at the side of the river they fix tetrahedrons 5, the skeleton of which is represented only by structure ribs. After that, gabions 1 are laid, besides, stone laid into gabion boxes protrudes from net cells by 3-4 cm. The gabion structure is protected from abrasive at high speeds of the flow and increased concentration of abrasive.

EFFECT: increased reliability of coast-protecting structures.

2 dwg

FIELD: agriculture.

SUBSTANCE: invention relates to a protective system, in particular to the protective system intended for preservation and restoration of the shoreline. The protective system (1) comprises a gabion having opposite side walls (13, 15) interconnected at regular intervals along the length of the gabion by several separating walls (7, 9), and the gaps between neighbouring pairs of partition walls (7, 9) bound together with the side walls at least one separate compartment (7) of the gabion. At least one separate compartment of the gabion is bounded by respective opposite side walls or opposite parts of the side walls in the respective opposite side walls. The partition walls are hingedly connected to the side walls, and the separate compartment of the gabion extends from it outwardly with at least partial converging of panels of the open frame (21), forming in whole or in part the protruding compartment (5) of the gabion. The method of preservation or restoration the shoreline comprises the following steps, including creation of the above-mentioned protective system; at least partial filling at least one compartment with the filling material, preferably sand, stones and/or vegetation; at least partial filling the protruding compartment with oyster shells, and performing at least partial facing the shoreline with the protective system.

EFFECT: protective system is used for changing the direction of the wave energy, especially sea wave energy, to preserve the shoreline, as well as for restoration the shoreline.

36 cl, 11 dwg

FIELD: construction.

SUBSTANCE: in a landslide protection structure on the basis of a collapsed slope there is a bed of flexible mats, which are made of tight rows of light fascines laid normally to the line of slope inclination. On top of flexible mats there is a fixture of gabion mats with drainage devices made of light fascines and perforated pipes laid by alternating rows and wrapped into a gabion net. Flexible mats in the base and gabion mats on top of them are connected to each other by a galvanised metal wire with diameter of 2.5-3 mm. A drainage prism from rock filling is arranged along the foot of the collapsed slope. Above the slope fixture from flexible and gabion mats there is an additional fixture with low inclination from similar gabion mats with drainage devices. Gabion mats of slope and additional fixtures are tightly tied with the help of reinforcement wire and are fixed to reinforced concrete anchors arranged at a certain distance from each other in stable soil behind collapsed massif of the slope.

EFFECT: reliable protection of different objects located under slopes, where landslides and collapses of soil massifs are possible.

2 cl, 4 dwg

FIELD: construction.

SUBSTANCE: invention relates to the field of hydraulic engineering and can be used when creating the impervious protection of water entities, canals and reservoirs of industrial wastes made on subsiding soils. Ground base is prepared. Bentomate mattress is laid. Revetment from concrete or reinforced concrete slabs is performed. In this case, strip of bentomate mattress is placed on mattress under the joints of concrete slabs. Width of additional strip of bentomate mattress depends on geological and subsiding soil properties.

EFFECT: high production manufacturability and simplification of works on creation of impervious coating is provided.

2 cl, 3 dwg

FIELD: construction.

SUBSTANCE: method includes orientation of a flexible concrete mat (FCM) in respect to a bottom surface by its one or another side depending on type of soil. The method to install the FCM according to the first version includes orientation of FCM to the bottom surface with the side having higher penetration power as water flow in a water course exceeds the value of non-washing speed for this section of the water course and/or if characteristics of bottom surface soil are sufficient for FCM self-submersion into soil under gravity. Otherwise the FCM is oriented to the bottom surface with the side having the lower penetration power. The method of FCM installation according to the second version in case, if the bottom surface is formed mainly by rock, half-rock or clayey soils includes FCM orientation to the bottom surface with a side, on which blocks have bases of flat shape and larger area in plan compared to the opposite side. If the bottom surface is formed mainly by sandy or macrofragmental soils, then orientation of FCM to the bottom surface is carried out with a side, on which blocks have bases of smaller area in plan or are made without bases. If the bottom surface of the water course mainly contains sludges, sapropels, peated soils or peats, then the FCM is oriented to the bottom surface with its any side. The flexible concrete mat comprises concrete blocks, connected to each other row by row and in rows with at least one connection element. Surfaces in these blocks at the upper and lower side of the FCM are made mainly narrowing in direction from the central part of the blocks. The bases of the blocks have flat shape at one or both sides of the FCM. Ratios of average values of the base area, height of blocks and angles of inclination of the side surface of blocks must correspond to the laws given in the patent claim. The coefficient of asymmetry between FCM sides exceeds or its equal to 1.05.

EFFECT: higher reliability of FCM adhesion to protected bottom surfaces of any type.

17 cl, 5 dwg, 3 tbl, 3 ex

FIELD: construction.

SUBSTANCE: invention relates to hydraulic engineering and nature conservation construction and may be used to protect coastal areas, roads and other facilities against landslides and collapses of soil massifs. The anti-landslide system comprises a stepped arrangement of gabions and heavy fascines at the foot of the collapsed slope. Along the foot of the first stage made of three rows of heavy fascines 4, there is a pile grid 13. The pile grid 13 is made of a group of piles 14, driven into the base at a certain distance from each other along one line, and a metal lathing 15. The lathing 15 is arranged on top of piles at the height of the first step. Gabion mats 5 with drainage devices that create sites of steps 1, 2, 3, are made as cut into a collapsed soil massif and with an inclination towards the retaining walls. On top of the last step the gabion mat 6 of the site is arranged further than the line of possible massif collapse, to its stable soils.

EFFECT: increased efficiency and reliability of system operation as an anti-slide structure.

2 cl, 7 dwg

FIELD: construction.

SUBSTANCE: invention relates to hydraulic engineering construction and may be used to protect coastal areas, roads and other facilities against landslides and collapses. The method includes laying of gabions onto the collapsed slope. At first on the base of the collapsed slope they arrange a preparation from flexible mats 2, made from tight rows of light fascines, laid normally to the line of the slope inclination. Then on top of the flexible mats 2 they arrange a fixture from gabion mats 3 with drainage devices, made of light fascines and perforated pipes laid in alternating rows and rolled into a gabion net. Flexible mats 2 in the base and gabion mats 3 on top of them are connected to each other with a galvanised metal wire with diameter of 2.5-3 mm. Along the foot of the collapsed slope they arrange a drainage prism 6 from drop-fill rock. Reliable protection is provided for different facilities located under slopes, where there are landslides and collapses of soil massifs. The method may be most effectively used, when the height of the possible collapse of the soil massif does not exceed 10-12 m.

EFFECT: protection of coastal areas, roads and other facilities against landslides and collapses.

2 cl, 4 dwg

FIELD: building, particularly hydraulic structure reinforcement.

SUBSTANCE: method is performed in two-stages. The first stage involves forming vertical elongated flat ground massifs secured by hardening material. Massifs are created in crest embankment area and in upper area of embankment slope so that massifs are spaced minimal available distance from crest and pass through embankment body, including land-sliding upper embankment slope area. Massifs are anchored in mineral bottom by lower edges thereof and are arranged at least in three rows and there are at least three massifs in each row. Method for massifs forming involves driving double-slotted injectors directly in embankment ground or in wells formed in embankment and having plugged wellhead; orienting injector slots perpendicular to hydraulic pressure head vector direction in embankment area to be reinforced; injecting hardening material under increased pressure across horizons from top to bottom or in reverse direction, wherein injection is initially performed under 5-15 atm pressure and at minimal rate in each second injector of one outermost row beginning from extreme ones; feeding hardening material in previously missed injectors in this row; supplying injectors of another extreme row with hardening material in the same way; feeding hardening material to ejectors of medium rows under 10-20 atm pressure; performing the second reinforcement stage as material hardens to obtain 70% strength. The second reinforcement stage involves forming vertical elongated flat massifs of secured ground anchored in mineral bottom by lower edges thereof and arranged at least in three rows, wherein each one includes at least three massifs. Massifs extend at the angle exceeding embankment slope angle to horizontal line. Massifs are formed with the use of double-slotted injectors in remainder embankment area. Injector slots are directed perpendicular to hydraulic pressure head vector direction in embankment area to be reinforced. Hardening material is ejected in above succession, wherein hardening material pressure is equal to design process pressure enough for direction of feeding hardening material through injector slots and lesser than hardening material injection pressure of the first reinforcement stage.

EFFECT: increased reliability of structure reinforcement; prevention of land-slide on structure slopes.

3 cl, 3 dwg

FIELD: hydraulic structures, particularly for river channel bed reinforcement.

SUBSTANCE: means includes netted metal cylinders connected one to another to form integral reinforcement structure. Netted cylinders are made as cylindrical frames filled with shrubs or tree branches and secured by anchors to preliminary prepared base. Lower part of structure is deepened for depth increasing depth of possible bed erosion. Cylindrical frames may be oriented in transversal or longitudinal direction relative stream direction and may be formed of mesh grid wound around metal rings and connected to them or of rigid net having wire twisted in two-for-one manner between cells.

EFFECT: increased efficiency of bed protection against erosion, increased service life, reduced cost for structure erection and maintenance.

5 cl, 7 dwg

FIELD: hydraulic structures, particularly for river or channel banks and slopes consolidation.

SUBSTANCE: wall includes gabions formed of net and stones and laid in layers. Gabions are made as parabolic cylinders oriented transversely or along flow direction and connected one to another so that gabion ridges of upper layers are offset relative that of lower ones to which they are connected. Wall is covered with concrete from one side. Parabola in the base of parabolic cylinder is described by the following equation: Y = (4·hg·X2)/Bg , where X and Y are parabola abscissa and ordinate, hg and Bg are correspondingly gabion width and height, here Bg = (2 - 4) hg. Wall may be reinforced with reinforcing cage from another side. In particular cases net may have cross-section of stepped shape with decreasing steps width in upward direction or L-shaped cross-section.

EFFECT: increased reliability, reduced cost for foundation building, increased service life.

5 cl, 12 dwg

FIELD: hydraulic building, particularly for river and channel banks consolidation.

SUBSTANCE: method involves laying gabions filled with stones on prepared base located on slope along river bed. Gabions are made as gabion mats consist of connected elliptical tubular members. Tubular member bases are described by the following equation: (4·X2/B

2g
)+(4·Y2/h2g
)=1, where X, Y are abscissa and ordinate of parabola defining tubular member base; Bg and hg are gabion width and height correspondingly, Bg = (1 - 2)hg. Gabion mats are preliminarily made with the use of matrixes filled with stones and made as two nets, namely upper and lower ones. Neighboring tubular members are sewed up in straight line by connection wire. Gabion mats are connected one to another to form single unit having apron. Apron is anchored to slope. Connection wire is twisted by wire twisting means. Gabion mats may be laid on slope with longitudinal or transversal tubular members orientation relative stream direction. In particular cases gabion mats are laid on slopes so that tubular member orientations alternate in staggered order. Gabion mats also may be laid on slope on gravel base having thickness of hb > hg/2, where hb is gravel base height, hg is gabion height.

EFFECT: increased efficiency and reliability of slope protection against erosion, increased service life.

5 cl, 10 dwg

FIELD: hydraulic engineering.

SUBSTANCE: invention can be used as bank strengthening structures in river and canal courses. Proposed fastening contains gauze metal cylinders with filled-up inner space connected to form solid fastening. Gauze cylinders of parabolic form are made by winding gauze over bush of tree branches laid on prepared base of slope and are secured on slope by anchors over line of contact of gauze and base. Lower part of fastening is dipped to depth exceeding depth of expected degradation. Parabolic cylinders can have crosswise or longitudinal orientation relative to direction of stream. Said parabolic cylinders can be made of woven gauze or rigid gauze with double twisting of wire between meshes.

EFFECT: improved efficiency of protection of banks, increased service life of construction, reduced construction and service expenses.

5 cl, 6 dwg

FIELD: hydraulic engineering, particularly for ground consolidation, namely for embankment slopes protection.

SUBSTANCE: coating is formed of polymeric fiber material and of fertile ground mixed with perennial grass seed. The coating is formed as mats sewed or joined with the use of heat. The mats are filled with mixture including fertile ground, perennial grass seed and polymeric wool taken in amount of 3-5% of fertile ground mass. Fiber material thickness is 2-5 mm, fiber density of the material is 0.01-0.12 g/cm3. Diameter of fiber material and wool fibers is 5 - 40 μm.

EFFECT: reduced cost, increased reliability of slope protection.

1 ex

FIELD: hydraulic structures, particularly for slope and river or channel bank consolidation.

SUBSTANCE: support wall includes gabions made of gauze and filled with stones. The gabions are laid in layers. Support wall is fastened with gauze anchors to ground embankment from another wall side. Gabions are made as parabolic cylinders connected one to another so that ridge of each upper gabion is offset relative that of previous lower ones to which above upper gabions are connected. Support wall base is protected against erosion by flexible reinforced concrete apron. The wall is covered with concrete coating from working side thereof. Gauze anchors may be continuous or discrete. Number of continuous anchors is more than one.

EFFECT: increased load-bearing capacity and reduced cost.

4 cl, 7 dwg

FIELD: securing of slopes or inclines, particularly for ground slopes and water pool banks stabilization, for artificial water pool building and reconstruction, for minor river recovery and erosive slope consolidation.

SUBSTANCE: method involves performing masonry works of building members by laying building member layers in alternation with fabric layers. The building members are rough stones, which are connected one to another by fabric impregnated with binding material to provide elastic connection areas between stone layers. Ground stabilization device comprises masonry formed of building members alternated with fabric layers. The building members are rough stones, which are connected one to another by fabric to form elastic connection areas between stone layers.

EFFECT: increased environmental safety, improved appearance and technological effectiveness, increased elasticity of stone connection.

16 cl, 3 dwg, 2 ex

FIELD: hydraulic and irrigation building, particularly to protect banks of rivers, channels, dam slopes and other structures against erosion.

SUBSTANCE: bank-protection structure consists of shafts fixed in gabions from lower ends thereof. The gabions comprise nets filled with stones and have cylindrical shapes built below eroded zone level. The shafts are vertically installed in the foundations in one or several rows. The shafts are spaced apart and installed in direction parallel to river flow. The shafts are trees or reinforced concrete posts fixed inside the gabion by stones. The cylindrical gabions are connected to net laid along river flow in horizontal plane. Space between vertical shafts and bank may be filler with trees or bushes. Cylindrical gabion tops may be covered with concrete.

EFFECT: increased efficiency of bank protection and extended service life of bank-protection structure.

6 cl, 5 dwg

FIELD: hydraulic and irrigation building, particularly to protect banks of rivers, channels, dam slopes and other structures against erosion.

SUBSTANCE: bank-protection structure consists of transversal heels created as shafts fixed in gabions from lower ends thereof. The gabions comprise nets filled with stones and are formed as cylindrical foundations built below eroded zone level. The shafts are installed in the foundations in one or several rows. The shafts are spaced apart and installed in direction transversal to river flow. The shafts are trees or reinforced concrete posts fixed inside the gabion by stones. Depth of gabion embedding in ground increases in direction from the bank.

EFFECT: increased efficiency of bank protection and extended service life of bank-protection structure.

5 cl, 6 dwg

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