423 results about "Geomembrane" patented technology

The invention relates to the technical field of engineering, in particular to a geomembrane defect detection system and method under the earth and stone medium coverage condition, and the geomembrane defect detection system comprises a multi-mode adaptive sensing module, an edge calculation module, a data fusion module, a digital twinning module and a decision and application module; compared with the defects that single resistivity or geological radar detection is adopted in the prior art, interference of medium conductivity and metal impurities is likely to happen, and the deep resolution is insufficient, the scheme adopts multi-mode sensor network cooperative work, and a dynamic density layout and time-phased acquisition strategy is combined; through multi-mode complementation of an electrode array, an ultra-wideband radar, a distributed optical fiber and an MEMS vibration sensor, a dominant sensing mode is automatically switched in a conductive clay area, temperature gradient interference is avoided through night acquisition, the penetration depth is increased to 15 meters through multi-band radar fusion, and metal interference is inhibited; the detection precision and the anti-interference capability in a complex medium environment are remarkably improved, and the problems of high false alarm rate and high omission ratio of a traditional method are effectively solved.

The utility model relates to a hemming system for seaming a geomembrane on a building protective net, which comprises a first tensioning device, a sewing device and a monitoring tensioning device for the building protective net to enter in sequence, and an edge folding device for folding the edge of the building protective net is further arranged between the first tensioning device and the sewing device. A folding guide device for folding the geomembrane and then feeding the geomembrane into the folded edge of the building protective net is further arranged between the edge folding device and the sewing device, and the monitoring tensioning device is electrically connected with the first tensioning device. When the folding device is used, a geomembrane is folded through the folding device and then fed into a folded edge, meanwhile, the tensioning degree of the building protective net at the sewing device is monitored in real time through the monitoring tensioning device, and when the building protective net is too tight, a signal is transmitted to the first tensioning device to drive the first tensioning device to loosen the building protective net; therefore, the tensioning effect of the building protective net is adjusted, and the needle head is prevented from being broken.

The invention provides a geomembrane on-line leakage detection system and detection method, and relates to the technical field of geomembrane detection, the system comprises a signal monitoring module used for arranging a sensing detection network under a geomembrane in an array, carrying out on-line monitoring, and determining a real-time leakage signal of the geomembrane; the sensing and positioning module is used for executing compressed sensing and positioning based on sparse reconstruction according to a plurality of leakage points corresponding to the plurality of leakage signals, and identifying a source sensing matrix; and the leakage early warning module is used for carrying out leakage point early warning based on the source sensing matrix and carrying out leaked area early warning based on the plurality of leakage signals. The technical problems that in the prior art, geomembrane leakage is difficult to accurately recognize and position, response is not timely, and the anti-seepage safety and the management efficiency are reduced are solved. The technical effects of accurately positioning and early warning the leakage points in real time, effectively improving the sensitivity and response speed of geomembrane leakage detection, and improving the anti-seepage safety and management efficiency are achieved.

The utility model relates to the technical field of geomembrane laying assistance, and provides a geomembrane flattening structure which comprises a pair of supports and a pair of moving wheels, the moving wheels are arranged at the lower ends of the supports, shaft seats are rotatably connected in the supports, a bulldozing assembly is arranged on the supports, a locking assembly is arranged on one side of each support, and the bulldozing assembly comprises a fixing column. The fixed column is arranged on the side surface of the support, the fixed column is rotationally sleeved with a swing frame, an extension rod is movably sleeved with the swing frame, and a long hole is formed in the surface of the swing frame. By means of the technical scheme, the problems that in the prior art, when a geomembrane is flattened, a traditional geomembrane flattening mode is usually adopted, a geomembrane roll is rotated and flattened by manually pulling a roller body, the defects still exist in the operation process, the needed labor intensity is large, the working efficiency is low, wrinkles are likely to occur in the flattening process, and the working efficiency is high are solved. The flattening device is not attached to the laid ground, and the flattening effect is poor.

The invention discloses a polyethylene composite geomembrane and a processing technology thereof in the field of geosynthetic materials. The polyethylene composite geomembrane is prepared from the following raw materials: high-density polyethylene, polyethylene grafted maleic anhydride, a nano montmorillonite / low-density polyethylene composite modifier, an antioxidant, a light stabilizer and a lubricant calcium stearate. Wherein the polyethylene grafted maleic anhydride is prepared by drying high-density polyethylene, mixing the dried high-density polyethylene with maleic anhydride, an initiator and an antioxidant, and performing melt extrusion through a double-screw extruder, so that the surface polarity is improved; the nano-montmorillonite / low-density polyethylene composite modifier is prepared by ultrasonically dispersing Na-montmorillonite, adding hexadecyl trimethyl ammonium bromide, stirring, centrifugally drying to obtain organic modified montmorillonite, mixing the organic modified montmorillonite with low-density polyethylene, performing intercalation reaction, and performing twin-screw extrusion and blending, so that the barrier property is enhanced. The processing technology comprises the steps of raw material mixing, twin-screw extrusion granulation and calendaring molding, and finally the polyethylene composite geomembrane with remarkably improved interface cohesiveness, weather resistance and barrier property is prepared.

The invention discloses a refuse landfill geomembrane leakage detection method and system, and relates to the technical field of leakage detection.The method comprises the steps that a plurality of electrodes are arranged on the basis of the upper portion and the lower portion of a refuse landfill geomembrane, and a membrane upper electrode array and a membrane lower electrode array are constructed; constructing a detection electric field to obtain multiple groups of induction signal data; setting a reference signal, and identifying an abnormal sensing signal according to an analysis result; and mapping the abnormal sensing signal to the under-membrane electrode array according to abnormal data characteristics for positioning, determining electrode position information, and obtaining a leakage detection result. The technical problems that in the prior art, the positioning precision of the leakage point of the geomembrane of the refuse landfill is low, the leakage scale is difficult to evaluate, and the anti-seepage performance is not monitored in time are solved, and the technical effects that accurate positioning and scale evaluation of the leakage point of the geomembrane of the refuse landfill are achieved, and effective monitoring of the anti-seepage performance of the geomembrane is guaranteed are achieved.

The utility model relates to a high-pressure jet grouting cutoff wall clay core wall earth rock cofferdam construction structure which comprises the following steps: S1, surveying and lofting by a surveying ship, and determining a block stone throwing and filling area; s2, rubble embankment riprap filling and dynamic elevation re-checking are carried out; s3, filling construction of a clay core wall in a central area; s4, construction of the high-pressure jet grouting expansion diaphragm wall; and S5, anti-seepage construction of the composite geomembrane of the upper slope section is conducted. According to the construction method of the clay core wall earth rock cofferdam of the high-pressure jet grouting cutoff wall, the construction speed is high, the anti-seepage effect is good, and the construction technical defects that in the construction process of an existing deepwater earth rock cofferdam, the riprap precision is low, the high-pressure jet grouting cutoff wall leaks slurry, the anti-seepage effect of an upstream slope is poor and the like are overcome; the construction method has the construction advantages of high stability, high efficiency, high benefits and the like during implementation, and the technical benefits are remarkable.

The whole reservoir anti-seepage reservoir of the pumped storage power station comprises a seepage control structure, a drainage collection system and a seepage monitoring system, the seepage control structure comprises a reservoir bottom seepage control structure and a reservoir bank seepage control structure, and the reservoir bottom seepage control structure comprises a geomembrane, a broken stone hardcore, a reservoir bottom transition layer, a geotechnical mat and geotechnical cloth; the reservoir bank seepage control structure comprises a geomembrane, a reservoir bank cushion layer, high-strength woven geotechnical cloth and a wave wall. On the basis of the characteristics of deformation and the like of different areas of the reservoir basin, adaptive seepage control types are designed and combined to form a complete full-reservoir-basin seepage control structure, seepage pressure value information of monitoring points is collected in real time through the seepage monitoring system, and the seepage pressure value information of the monitoring points is acquired in real time. And a leakage point position judgment method is provided to determine a local leakage point area.

A synthetic turf cover system for covering various types of sloping ground includes synthetic grass blades tufted into and through a composite backing, with the composite backing including a non-woven synthetic textile lower layer and a woven textile upper layer positioned above and adjacent the non-woven synthetic textile lower layer. The non-woven synthetic textile lower layer provides good interface shear strength with the ground or a ground-covering membrane, while the woven textile upper lawyer provides good strength. The synthetic turf cover system provides good cushioning to help protect the geomembrane against damage from vehicles driving on the synthetic turf cover system.

The invention relates to the technical field of water conservancy project exploration, in particular to a device and method for detecting the integrity of a geomembrane anti-seepage system in the plain reservoir operation period. The detection device comprises a pontoon; the underwater suspension cable is dragged at the tail part of the pontoon; the underwater cable dragging unit is connected to the front end of the underwater suspension cable; the tail end suspension device is connected to the tail end of the underwater suspension cable; the underwater cable dragging unit is used for providing horizontal pulling force in the measurement process, the tail end suspension device is used for controlling the suspension depth of the tail end of the underwater suspension cable, and the underwater cable dragging unit and the tail end suspension device keep the same suspension depth in the measurement process. According to the method, the problems that the front end of the cable is easily lifted by a pontoon, the posture is unstable and the cable is easily interfered by stormy waves in the prior art are solved, and an accurate division evaluation and result interpretation method is provided for judging the integrity of a geomembrane anti-seepage system in the operation period of a plain reservoir.

The utility model provides a mine ecological restoration filling slope platform drainage device, and relates to the technical field of mine ecological restoration slope drainage. The structure comprises a filling slope, a soil drainage ditch, a clay layer, a drainage pipe, a geomembrane and a soil water retaining stem, a soil drainage ditch is arranged on the inner side of the slope platform; clay layers are arranged on the surfaces of the soil drainage ditches, and drainage pipes are arranged on the surfaces of the clay layers; a geomembrane is arranged on the surface of the drainage pipe, the two sides of the geomembrane extend to the platform and the slope toe, and a soil water retaining stem is arranged on the surface of the part, extending to the platform, of the geomembrane. The structure is convenient and rapid to construct, simple in structure and capable of adapting to uneven settlement deformation of the mine filling slope, water on the surface of the filling slope can be collected into the slope toe drainage ditch to be discharged in time, instability caused by surface water scouring and infiltration of the slope is prevented, vegetation damage caused by surface water is reduced, and the mine ecological restoration effect is guaranteed.

The invention provides a special geomembrane for a pumped storage power station and a preparation method of the special geomembrane, and relates to the technical field of geomembrane materials. The special geomembrane for the pumped storage power station comprises an outer layer, a middle layer and an inner layer which are sequentially connected, the outer layer is prepared from the following raw materials: 55 to 65 percent of MDPE, 33 to 40 percent of HDPE, 1 to 5 percent of antioxidant master batch and 1 to 7 percent of double-resistant color master batch; the middle layer is prepared from the following raw materials: 15 to 25 percent of HDPE (High-Density Polyethylene), 35 to 45 percent of LLDPE (Linear Low Density Polyethylene), 25 to 35 percent of POE (Polyolefin Elastomer), 1 to 5 percent of antioxidant master batch and 3 to 7 percent of double-resistant color master batch; the inner layer is prepared from the following raw materials: 35 to 45 percent of MDPE, 40 to 50 percent of LLDPE, 8 to 12 percent of POE, 1 to 5 percent of antioxidant master batch and 3 to 7 percent of double-resistant color master batch. The strength, the fatigue resistance and the aging resistance are balanced on the whole, so that the long-term operation requirement of the pumped storage power station is met.

The application provides a semi-excavation and semi-filling full-reservoir-pot anti-seepage drainage type, which comprises asphalt concrete panels arranged along the periphery of the reservoir pot and a geomembrane laid on the reservoir bottom, the asphalt concrete panel on one side of the reservoir bank is overlapped with the geomembrane through the arrangement of a reservoir bank concrete gallery, the asphalt concrete panel on the panel rockfill dam is overlapped with the geomembrane through the arrangement of a concrete connecting plate, the connection and fixation of the asphalt concrete panel and the geomembrane are realized through the arrangement of the concrete connecting plate and the reservoir bank concrete gallery, the problems that the concrete panel of a high dam is easily squeezed and damaged and the asphalt concrete panel on the high-filling slag body of the reservoir bottom is difficult to adapt to uneven deformation are solved, a new anti-seepage solution is provided for projects with complex topographic and geological conditions, high dam, deep filling of the reservoir bottom and poor filling materials, a partition monitoring system is formed through the arrangement of the reservoir bank concrete gallery, the reservoir bottom concrete gallery and the front pool concrete gallery, the defect position of the reservoir pot seepage can be quickly and effectively identified, and the operation safety of the project is ensured.

The utility model discloses a kind of TPO geomembrane seepage prevention detection test devices, specifically related to seepage prevention test technical field, including test shell, the outer wall of test shell is equipped with positioning counterweight sealing assembly, positioning counterweight sealing assembly includes: sealing strip, fixedly connected in the lower surface of counterweight frame, sealing strip is used to contact TPO geomembrane surface and adhere to seal;Multiple guide columns, all fixedly connected in the upper surface of counterweight frame, the top of each guide column is fixedly connected with guide end.The utility model uses positioning counterweight sealing assembly, counterweight cover is guided and inserted on the outer wall of guide column along guide end, multiple counterweight cover realize large-area counterweight extrusion to the upper surface of counterweight frame, so that sealing strip and TPO geomembrane surface realize quick contact seal, quickly realize multi-point synchronous counterweight sealing, sealing seepage prevention detection test processing is more efficient.

The utility model belongs to the technical field of geomembrane laying accessories, and particularly relates to a geomembrane joint fastening device. The utility model comprises a slot strip, wherein one side of the slot strip is provided with a slot; one side of the inserting strip is provided with an inserting head, and the inserting head is inserted into the inserting groove; the top face and the bottom face of the connecting plug are each provided with at least one elastic clamping hook, and elastic clamping grooves matched with the elastic clamping hooks are formed in the inserting groove. The utility model is used for solving the technical problems in the prior art that the geomembrane needs to be cleaned in advance and a certain construction environment is needed in the lap welding process of the geomembrane seam, so that engineering delay is caused.

The invention relates to the technical field of slope supporting construction of constructional engineering, and particularly discloses a redundant and safe reinforced soil structure and a construction method. Reinforced soil is of a multi-step structure and is constructed on a weathered rock foundation; the reinforced soil sequentially comprises a plain concrete foundation, multiple layers of integral steel-plastic geogrids, a graded broken stone drainage layer, a clay water-resisting layer, a waterproof geomembrane, a concrete sealing bottom and plain filling soil from bottom to top, and reinforced concrete panels are poured on the outer sides of the integral steel-plastic geogrids. A reinforced concrete foundation is arranged at the bottom of the reinforced concrete face plate, a cement soil cushion layer is laid at the bottom of the reinforced concrete face plate, drainage holes and pre-embedded steel tie bars are arranged in the reinforced concrete face plate, the pre-embedded steel tie bars and the whole steel-plastic geogrids are bundled up, and a gravel inverted filter bag is arranged in each layer of steel-plastic geogrids. The clay water-resisting layer and the gravel drainage layer are laid to achieve redundant safe water prevention and drainage, the construction period is controllable, and the manufacturing cost is relatively low.

The utility model discloses a geomembrane winding device with a deviation rectifying function. The geomembrane winding device comprises a supporting frame body, and a clamping assembly, a tension assembly, a deviation rectifying assembly, a pressing assembly and a winding assembly which are sequentially arranged on the supporting frame body in the geomembrane winding direction. According to the geomembrane winding device, the tension assembly and the pressing assembly are arranged, the tension assembly and the pressing assembly are each provided with an elastic connecting device, tension adjustment can be effectively conducted on a geomembrane in the winding process, and the loosening problems of insufficient tension and the like possibly occurring in the geomembrane winding process are solved; according to the geomembrane winding device, the deviation correcting assembly and the winding assembly are arranged, the first deviation correcting device and the second deviation correcting device can be effectively matched, position deviation of a geomembrane in the winding process can be prevented, extrusion damage to the geomembrane cannot be caused, and therefore the winding quality and efficiency in the geomembrane winding process are effectively improved.

This invention discloses a method for fixing a seepage-proof transition section on an irregular rock slope in a mine landfill. A seepage-proof cementitious composite sprayed material is wet-sprayed onto the irregular rock slope (1-2), forming a seepage-proof cementitious composite sprayed material layer (2) on the surface of the seepage-proof transition section. A seepage-proof geomembrane (3) is laid from the regular rock slope (1-1), and then rubber pads (7) and thin steel plates (6) are laid on the geomembrane (3) from the inside out. Hollow grouting anchors (4) are self-drilled through the holes in the thin steel plates (6) and rubber pads (7), and the edges are trimmed with a seepage-proof sealing agent (8). This invention is applied to the reinforcement of seepage-proof transition sections on irregular rock slopes in mine landfills, overcoming the problem of easy damage during the fixing process of seepage-proof transition sections on irregular rock slopes, eliminating potential hazards, and improving the safety and reliability of the seepage-proof system. It not only has good economic benefits but also significant safety and environmental benefits.

This invention discloses a vertical geomembrane laying device and method for landfills. The landfill has an underground trench, including a hanging frame and a geomembrane. The hanging frame is configured to move up and down along the underground trench. The geomembrane is laid on one side of the hanging frame, and interlocking structures are provided on both longitudinal sides of the geomembrane. Two sets of counterweight supports are respectively located at the longitudinal ends of the geomembrane. A detachable fixing component is constructed to connect the hanging frame and the counterweight supports to temporarily fix the geomembrane to the hanging frame. When the geomembrane is lowered, the interlocking structures are interlocked with the interlocking structures of adjacent geomembranes. After the geomembrane is lowered into place, the detachable fixing component can be released to separate the geomembrane from the hanging frame. The two sets of counterweight supports apply longitudinal tension to the geomembrane to keep it in a vertically tensioned state. This invention solves the technical problems of existing geomembranes being easily scratched by sharp objects during the lowering process and the insufficient integrity of the geomembrane after laying.

This utility model provides a clamp for horizontal tensioning of geomembranes in a laboratory, and the device relates to the field of hydraulic engineering technology. The clamp includes an upper clamping plate, a lower clamping plate, and a sliding groove; the upper clamping plate includes an upper plate and a protrusion; the upper surface of the lower clamping plate has a groove, and rollers are fixed to the lower surface, with several pressure devices fixed to the edge; the sliding groove provides a sliding track for the rollers on the lower surface of the lower clamping plate. This utility model can effectively solve problems such as unstable clamping of smooth geomembranes, stress concentration due to clamping effect, and the influence of clamp gravity effect on the horizontal tensile force data of the geomembrane.

The invention provides a construction and operation method of a permeable reaction barrier based on photocatalytic regulation, which comprises the following steps: mounting a plurality of permeable reaction modules in a groove to form the permeable reaction barrier; the ultraviolet light band is connected with the plurality of permeable reaction modules; a gap between the permeable reaction barrier and the groove is filled, and the top of the permeable reaction barrier is sequentially covered with a geomembrane and a cohesive soil layer and compacted; respectively building monitoring wells at the downstream of the permeable reaction barrier and the upstream of the pollution source; during operation, opening and closing of the ultraviolet light band in the permeable reaction barrier are regulated according to monitoring parameters of upstream and downstream groundwater. According to the construction and operation method for regulating and controlling the permeable reaction barrier based on photocatalysis, the operation efficiency of the permeable reaction barrier in a groundwater pollutant concentration change site is improved, and the cost is reduced.

The invention provides a high-density polyethylene composite geomembrane and a production process thereof, and the high-density polyethylene composite geomembrane comprises a cast film and geotechnical cloth. The cast film is prepared from the following raw materials: 52 to 68 parts of high-density polyethylene, 6 to 12 parts of modified metallocene polyolefin-graphene compound, 4 to 9 parts of modified polyolefin-ethylene-vinyl alcohol master batch, 5 to 10 parts of alpha-olefin ethylene copolymer, 3 to 7 parts of vinyl elastomer, 1 to 3 parts of polytetrafluoroethylene micro powder, 0.1 to 0.3 part of antioxidant, 0.2 to 0.5 part of ultraviolet stabilizer and 0.1 to 0.3 part of lubricant. And 1.5-3 parts of an ultraviolet screening agent. The composite geomembrane obtained by the invention has the advantages of high strength, high toughness, high impermeability, excellent pollution resistance, excellent weather resistance, high puncture resistance, firm membrane-cloth combination, good thickness uniformity and the like.

The utility model discloses a cutting device for geomembrane processing, which comprises a support table, a pair of vertical first support plates arranged on the support table, a horizontal support shaft arranged between the pair of first support plates, a horizontal lifting plate arranged right above the support shaft in a lifting manner, and a cutting device arranged above the lifting plate, a pair of second supporting plates parallel to the first supporting plate is arranged at the bottom of the lifting plate, a screw parallel to the supporting shaft is rotationally arranged between the pair of second supporting plates, a moving block is connected to the screw in a threaded mode, and a vertical blade parallel to the supporting shaft is arranged at the bottom of the moving block; the supporting shaft is provided with a first limiting groove which extends in the length direction of the supporting shaft, is provided with an upward opening and is located under the blade, a pair of first limiting plates perpendicular to the pair of second supporting plates is further arranged between the pair of second supporting plates, and the moving block is located between the pair of first limiting plates and makes sliding contact with the first limiting plates. The position and the size of a cutting opening can be flexibly selected, and the application range is wider.

The utility model relates to the technical field of hydraulic engineering, in particular to an anti-seepage hydraulic engineering dam which comprises a concrete top plate and a concrete bottom plate, an upper tooth wall is fixedly connected to the upper end of the concrete top plate, and a plurality of upper tooth grooves are formed in the upper end of the upper tooth wall. A filtering assembly is fixedly connected between the concrete top plate and the concrete bottom plate, and the rear end of the filtering assembly is fixedly connected with a protection assembly. According to the anti-seepage water conservancy project dam, double anti-seepage barriers are formed through the composite structure of the inclined anti-seepage wall and the two-cloth-one-membrane anti-seepage geomembrane, the inclined anti-seepage wall can guide water flow to be dispersed along the slope surface, seepage pressure is reduced, and the two-cloth-one-membrane anti-seepage geomembrane can be used for preventing the water flow from entering the water conservancy project dam through the isolation and drainage performance of fabric and the low permeability of membrane materials. A water seepage path is effectively blocked, a fixing frame and a separation net are matched, the geomembrane is protected against damage, impurities can be intercepted, and the dam anti-seepage efficiency is greatly improved.

This application discloses a geomembrane encapsulation device for UV-curable glass fiber tubes, relating to the field of geomembrane encapsulation equipment. It includes a support steel frame and a tube blank conveyed onto the support steel frame. Two geomembrane unwinding mechanisms, one for mounting the geomembrane roll and the other for installing the geomembrane, are symmetrically arranged on the upper and lower surfaces of the support steel frame. Cold pressure rollers are installed between the inner walls of the support steel frame to initially press the upper and lower geomembranes and the tube blank located between them. An auxiliary component is installed inside the support steel frame to flatten and fix the wrinkles at both ends of the geomembrane. The threaded grooves in this application form a raised structure, which discharges gas between the geomembrane and the tube blank during rolling, improving the encapsulation density, coordinating the flattening of wrinkles and fixing the edges, solving the edge warping problem common in traditional encapsulation, and precisely adjusting the contact state between the roller and the encapsulation plate to achieve different functions at different positions of the geomembrane.

A geomembrane inflatable partition dam relates to the technical field of partition dams, and adopts the technical scheme that the geomembrane inflatable partition dam comprises a geomembrane bag, the geomembrane bag comprises a roll-shaped geomembrane, a hot melting seam arranged at the joint of two sides of the roll-shaped geomembrane, gas filled in the roll-shaped geomembrane and an inflation and deflation interface, the roll-shaped geomembrane is provided with a connecting part, and the connecting part is provided with an air inlet and an air outlet. The inflation and deflation connector comprises a floating body arranged in the geomembrane bag, a connector pipe is connected to the floating body in an inserted mode, the connector pipe extends out of the geomembrane bag and is connected with the rolled geomembrane in a hot melting mode, the connector pipe is provided with a valve, and the floating body is further provided with an inflation hole communicating the connector pipe with the interior of the geomembrane bag. After being inflated, the size of the brine pool is rapidly increased to serve as a dividing dam to divide the pool body into two parts, the dam body is high in forming efficiency, short in time and low in cost, the size of the dam body is reduced after being deflated, most of the dam body sinks to the water bottom under the action of gravity, the brine pool is connected into a whole again, and large-size brine filling can be carried out.

The frost heaving prevention protection channel for the cold region comprises second geotechnical cloth which is evenly laid on the surface of the channel in an attached mode, a layer of first geomembrane is evenly laid on the upper surface of the second geotechnical cloth, and first geotechnical cloth is evenly laid on the upper surface of the first geomembrane. Protective frames are uniformly attached to the upper surface of the first geotechnical cloth, polyurethane protective layers are arranged on the upper surfaces of the protective frames, and frost heaving resistance layers are embedded in the protective frames; according to the technical scheme, the multiple layers of geotechnical cloth are arranged, the geotechnical membranes are arranged between the geotechnical cloth, the geotechnical cloth and the geotechnical membranes form an inverted filter layer and an anti-seepage layer, the frost heaving problem of the channel slope protection under the negative temperature effect is reduced, workers can adjust the number of the geotechnical cloth and the number of the geotechnical membranes according to the requirements of the workers, and the working efficiency is improved. And the frost heaving prevention capability is further adjusted.

The utility model belongs to the technical field of building engineering, specifically discloses a heavy nonferrous metal smelting engineering existing pool anticorrosive and anti -infiltration structure. The reinforced concrete bottom plate and lateral wall of structure are closed into pool, the surface of reinforced concrete bottom plate is equipped with waterproof coating, geotextile I, high density polyethylene geomembrane, geotextile II, fine stone concrete layer, epoxy glass steel isolation layer and anticorrosive surface layer in proper order, the surface of reinforced concrete lateral wall is equipped with waterproof coating, geotextile I, high density polyethylene geomembrane, geotextile II, polymer cement mortar layer, epoxy glass steel isolation layer and anticorrosive surface layer in proper order, the layer of aforementioned same name of reinforced concrete bottom plate and lateral wall surface, geotextile and geomembrane correspond to head -tail link, and fine stone concrete layer and polymer cement mortar layer correspond to head -tail link. The utility model has the characteristics of simple structure, convenient construction, good anticorrosive and anti -infiltration performance and low cost.

The utility model relates to the technical field of cutting devices, and discloses a multi-station cutting device which comprises a working table, a plurality of geomembrane installation assemblies are fixedly arranged on one side of the upper end face of the working table, an outer frame is fixedly arranged at the position, close to the middle point, of the upper end face of the working table, and an inner plate is installed on the lower end face of the working table through a plurality of bolts. A plurality of first cutting grooves are formed in one side of the upper end face of the inner plate, a second cutting groove is formed in the other side of the upper end face of the inner plate, a bottom plate is movably embedded in the inner plate, a plurality of station check blocks are fixedly arranged on the upper end face of the bottom plate, and first electric push rods are fixedly arranged at the front end and the rear end of the lower end face of the bottom plate correspondingly. A plurality of first cutting mechanisms are installed on one side of the upper end face of the outer frame. According to the multi-station geomembrane cutting machine, geomembrane cutting work of multiple stations can be achieved, meanwhile, independent cutting work of a single wide geomembrane can be achieved, functionality is higher, and use is more convenient.