1822 results about "Geotextile" patented technology

The invention discloses an intelligent assembly loading control system of a geotextile laying ship, and belongs to the technical field of ship intelligent control. According to the invention, through the intelligent stowage planning module, based on standardized scheme matching and an adaptive optimization algorithm, objectives of balanced material distribution, shortest conveying path and ship stress rationalization are realized, stowage precision is improved, and sailing stability is optimized; the operation scheduling and arranging module dynamically generates an efficient operation time sequence graph through real-time cabin state recognition, process decomposition, operation time sequence optimization and remote cooperative control, precise scheduling is achieved, manual intervention is reduced, the automatic operation execution module is combined with real-time monitoring, abnormal early warning and intelligent feedback, the safety and adaptability of the operation process are ensured, and the working efficiency is improved. According to the method, loading deviation overrun and ballast abnormity are avoided, the decision-making capacity of the system is continuously optimized, manual operation errors are effectively reduced, the safety and economical efficiency of ship operation are improved, and green, energy-saving and efficient operation is helped to be achieved.

The invention discloses a geotextile laying ship operation intelligent control method and system based on the Internet of ships, and belongs to the technical field of ship engineering, and the method comprises the following steps: S1, collecting geotextile laying ship operation real-time data based on the Internet of ships through employing the Internet of Things technology; s2, processing and analyzing the geotextile laying ship operation real-time data based on the Internet of ships, timely discovering potential safety hazards and problems, and determining a geotextile laying ship operation risk prediction result; and S3, according to the operation risk prediction result of the geotextile laying ship, intelligent real-time adjustment and control are performed on the ship, so that the ship is always kept in a safe range in the geotextile laying process. The problem that intelligent control over ship laying operation cannot be effectively achieved in the prior art is solved. The system can achieve the functions of real-time monitoring, remote control, automatic control and the like, can improve the safety and efficiency of a ship in the arrangement process, can reduce the risk of manual operation errors, improves the accuracy and safety of arrangement work, and reduces the operation cost.

The invention discloses a movable geotextile pipe bag mud dewatering and curing treatment method, and relates to the technical field of sludge treatment.According to the movable geotextile pipe bag mud dewatering and curing treatment method, the adding amount of a flocculating agent is dynamically adjusted according to mud data monitored in real time, and the situation of agent waste or insufficient drug effect caused by a traditional fixed-proportion agent adding mode is avoided; a fuzzy control algorithm is adopted to dynamically adapt to the component change of the slurry, the cost of excessive use of chemicals is reduced, a chemical adding strategy is automatically adjusted, the slurry treatment effect is more stable, meanwhile, a multi-stage chemical adding mode is adopted, a flocculating agent is evenly distributed in the slurry, the flocculating agent can cover large particles and fine particles, and the treatment efficiency is improved. The problem of non-uniform flocculation caused by a single dosing point is improved, the overall efficiency of slurry dehydration is effectively improved by treating slurry with different particle sizes at different stages, and the stirring strength is dynamically adjusted based on slurry flow and particle size parameters, so that a flocculating agent and particles in the slurry are fully mixed, and the flocculation effect is improved.

The invention discloses a double-row steel sheet pile and soil core combined cofferdam structure and a construction method. The double-row steel sheet pile and soil core combined cofferdam structure comprises double-row pile connecting units, steel sheet piles, brackets, steel enclosing purlins, dredger fill and drainage plates. Each double-row pile connecting unit is formed by welding an upper connecting plate between two connecting steel sheet piles; the double-row pile connecting units are inserted into a soil body, and a steel sheet pile is inserted between every two double-row pile connecting units; corbels are welded to the outer sides of the steel sheet piles, steel enclosing purlins are arranged on the corbels, and the steel enclosing purlins, the steel sheet piles and the corbels are connected in a welded mode; dredger fill is filled between the two rows of steel sheet piles and is compacted by a hammer-attached soil squeezer; a drainage plate is inserted into the dredger fill; earth excavation is conducted on the side, close to water, of the double-row pile cofferdam to form a foundation pit; when shallow excavation is conducted on the foundation pit, no sand filling pipe bag is arranged; when the foundation pit is deeply excavated, a slope section is reserved; sand filling pipe bags are arranged on the outer side of the slope section and stacked on the outer side of the slope section in a staggered mode. The hammer-attached soil squeezing device comprises an attached hammer, a pressing plate, water permeable holes, geotechnical cloth and a brush.

A geotextile fabric includes a first weft yarn woven in a weft direction and a first warp yarn and a second warp yarn woven in a warp direction, the first warp yarn being a wicking yarn, and the second warp yarn being a wicking yarn or a non-wicking yarn, the first warp yarn forming a first loop that is woven through and extends from a first face of the woven geosynthetic fabric and across at least two of the first weft yarns to form a first gap between the first loop and first the face of the woven geosynthetic fabric.

The invention provides a composite tension sand blocking and silt reducing facility and method.The facility is composed of one or more units, each unit comprises a floating body, a composite tension curtain and an anchor point located at the bottom of a water body, one end of the composite tension curtain is connected to the floating body, and the other end of the composite tension curtain is connected to the anchor point; the composite tension curtain forms a sand blocking surface in the water between the bottom of the water body and the floating body by virtue of the buoyancy of the floating body, and the floating body is positioned on the water surface or suspended in the water; the composite tension curtain is formed by sewing two layers of geotechnical cloth together, a plurality of steel cables are inserted between the two layers of geotechnical cloth, a composite tension structure is formed to serve as a sand blocking and silt reducing curtain face, and main water flow force and wave force are borne by the steel cables. The flexible sand blocking curtain structure facility is economical, convenient to construct, suitable for large flow velocity and wave conditions and capable of blocking sand and reducing silt.

The invention discloses a testing device and a testing method for a permeability coefficient characteristic curve of wicking geotextile, and belongs to the technical field of permeability coefficient testing. A to-be-tested wicking geotextile and a soil layer are laid between an upper plate body and a lower plate body of a test unit of the test device; the two sealing covers are located at the two ends of the upper plate body and the two ends of the lower plate body respectively. Each of the first hollow column and the second hollow column comprises a hollow column section positioned above the upper plate body and below the lower plate body, the hollow column sections distributed up and down are communicated with a gap between the upper plate body and the lower plate body, and each hollow column section is filled with a soil body and forms a test soil column; the load output end of the load applying unit is used for applying a vertical load to the top of the test soil column and the upper plate body. The test device disclosed by the invention can really simulate the occurrence condition of the wicking geotechnical cloth in the roadbed engineering; the testing method based on the testing device can rapidly test the permeability coefficient of the wicking geotextile, and a characteristic curve of the permeability coefficient of the wicking geotextile is obtained.

The embodiment of the invention discloses a geotextile laying speed and geotextile laying ship moving speed control method. The method comprises the steps that the ship speed and environment data of a geotextile laying ship are obtained in real time; determining an arrangement speed based on the ship speed, the environmental data and a preset speed matching calculation formula; and generating a control signal of a driving device of the arrangement equipment based on the arrangement speed, and controlling the equipment speed of the arrangement equipment according to the control signal. The arrangement speed matched with the ship speed is calculated in real time, so that the central controller can adjust the speed of the arrangement equipment in real time according to the arrangement speed, changes of different sea conditions, ship body states and the like are flexibly coped, the system adapts to complex and changeable marine environments, the speed of the arrangement equipment is matched with the moving speed of the arrangement ship, and the arrangement efficiency is improved. The situation of operation interruption caused by speed mismatching is avoided, and the continuity and efficiency of arrangement operation are improved.

The invention discloses a construction method of an assembly type vibration isolation trench. The method comprises the following steps: firstly, designing and prefabricating a vibration isolation trench unit according to construction site conditions, underground water flow and vibration isolation requirements, including site analysis, size material determination, simulation optimization and quality inspection; before construction, field survey is carried out, topography and geology are covered, underground pipeline detection and vibration source analysis are carried out, the excavation path and depth are determined, and field preparation is made. And then digging a trench by using special equipment according to the design, controlling trench wall parameters and carrying out acceptance inspection. And then gravel and an anti-seepage film are sequentially laid at the bottom of the groove, and a drainage facility is additionally arranged according to needs so as to install a vibration isolation layer. The prefabricated units are lifted, adjusted and connected, then light materials are filled, then fine sand and geotechnical cloth are covered, and soil is recovered. And finally, adjusting and optimizing according to a result through vibration and acoustic testing. According to the method, through multiple layers of vibration isolation materials, firm connecting pieces and strict testing, the vibration isolation effect and stability are remarkably improved, and an effective scheme is provided for engineering vibration isolation.

According to the long-lasting antibacterial polypropylene filament non-woven geotextile and the preparation method thereof, organosilicon quaternary ammonium salt containing double bonds serves as an antibacterial agent and is subjected to melt blending with polypropylene master batches at a certain temperature, a proper amount of initiator is added, graft copolymerization is promoted, the antibacterial agent and polypropylene form covalent bonds, and the long-lasting antibacterial polypropylene filament non-woven geotextile is prepared. The antibacterial components are uniformly distributed and are not lost. The geotextile prepared by the needling process has strong antibacterial property and durability, effectively inhibits the growth of microorganisms, prolongs the service life, and enhances the functional stability under various environmental conditions. The geotextile meets the market requirements of environmental protection and sustainable development, is suitable for projects needing to be exposed to high-humidity and complex microbial environments for a long time, and provides reliable guarantee for wider engineering application.

The invention provides a construction method of a CRTS III type slab ballastless track, and relates to the technical field of high-speed rail construction, and the construction method comprises the following steps: mounting base plate steel bars, side forms, end templates and limiting groove templates, placing foam plates at expansion joints, and reserving track slab pressing and anchoring holes; base plate concrete is poured, and base plate concrete formwork removal, surface finishing, maintenance and expansion joint construction are carried out after pouring; constructing a geotextile isolation layer and an elastic cushion layer; limiting groove steel bars and self-compacting concrete layer steel bar meshes are installed, and track plates are placed; before and after the track plate and the base plate are fastened by the pressing device, the track plate is finely adjusted by the fine adjustment device; and a self-compacting concrete formwork is installed, self-compacting concrete is poured, and post-pouring treatment and curing are conducted. The track plate and the base plate are fastened through the pressing device, so that the track plate, the base plate and the self-compacting concrete layer are tightly attached in the self-compacting concrete pouring period, and the situation that reworking or track laying is difficult due to the fact that the floating amount of the track plate is too large is avoided.

The invention discloses a preparation method of composite geotechnical cloth, belongs to the technical field of geotechnical material processing, and solves the problems of insufficient interlayer bonding strength, poor permeation stability and incapability of adapting to regional differentiation mechanical requirements in the traditional process. According to the method, two layers of synthetic fiber geotextile and a layer of polymer geomembrane are selected, and a gradient needling machine is adopted to implement a double-station gradient needling process, specifically, thick needle needling pre-reinforcement is synchronously conducted on the upper side and the lower side till the membrane thickness is 50-60% of the depth, then fine needle needling finishing is conducted till the membrane thickness is 70-80% of the depth, the needling density is preset to be 20-70 needles / cm according to different stress areas of a membrane material, and the needling density is 20-70 needles / cm according to different stress areas of the membrane material; in the process, data of needling depth, needling density and membrane material tension are collected in real time through a dynamic monitoring system, parameters are automatically adjusted, and finally a stable structure is formed through heat setting treatment at 120-140 DEG C for 8-12 minutes. The composite geotextile prepared by the method has a high-strength bonding interface and excellent anti-seepage performance, and is suitable for the engineering fields of water conservancy project anti-seepage, road base reinforcement, refuse landfill isolation and the like.

The utility model provides a superhigh reinforced body preloading structure. The treatment structure comprises a reinforced body working cushion layer, a water separation and drainage reinforced layer and an ultrahigh reinforced body stacking structure layer. The reinforced body working cushion layer comprises machine-made sand and an A-type geocell, the water insulation and drainage reinforced body structure comprises non-woven geotextile, a seepage insulation film and multiple layers of composite drainage grids, the composite drainage grids are adopted to replace a medium-coarse sand drainage layer, a vertical drainage plate is directly connected with the middle layer of composite drainage grids, and the vertical drainage plate is directly connected with the middle layer of composite drainage grids. The ultrahigh reinforced body stacking structure layer comprises non-woven geotextile, construction waste, B-type geocells and mineral powder. The foundation treatment effect is good, the sand consumption is reduced, the manufacturing cost is saved, design and engineering application are facilitated, and the engineering application prospect is very wide.

The invention discloses a comprehensive treatment system and method for shield muck in a complex geological environment. The problem that in the prior art, the shield muck treatment efficiency is low in the complex geological environment is solved. The method mainly comprises the steps that S1, the shield muck is pumped into a mud-water separation system for muck and mud separation; s2, setting the specific gravity separation value of muck-containing particles to be 2.70 KG / m, after the slurry enters a slurry making system, conveying the slurry with the specific gravity of muck-containing particles smaller than 2.70 KG / m to a shield tunneling machine for tunneling circulation, and conveying the slurry with the specific gravity of muck-containing particles larger than 2.70 KG / m to a filter pressing system for filter pressing dehydration or conveying and filling the slurry into a geotextile tube bag for curing dehydration; and S3, sand washing and recycling are conducted on muck generated by the mud-water separation system, the filter pressing system and the geotextile pipe bag. According to the method, the slurry and the muck in the shield muck can be efficiently separated by combining methods of mud-water separation, filter pressing dehydration, geotextile tube bag solidification dehydration and the like, and the separated slurry and the separated muck are respectively recycled.

The invention provides a dredging and blocking combined salinized soil roadbed novel composite liner separation layer and a roadbed structure. The composite liner separation layer comprises a first layer of non-woven geotextile, an upper layer of three-dimensional geotextile drainage network, a second layer of non-woven geotextile, a polymer modified bentonite particle layer, a third layer of non-woven geotextile, a lower layer of three-dimensional geotextile drainage network and a fourth layer of non-woven geotextile which are sequentially arranged from top to bottom; the roadbed structure comprises a pavement structure layer, a roadbed, a composite liner partition layer and an embankment which are sequentially laid from top to bottom, and slope protection ways and drainage ditches are arranged on the two sides of the roadbed structure. Through the bentonite particle impermeable layer in the composite liner separation layer, infiltration of surface water can be prevented, and rising of capillary water and migration of water and salt under the action of temperature gradient can also be blocked; slope protection and drainage ditches are designed on the two sides of the roadbed, smooth salt and water drainage of the roadbed is guaranteed, and the risk of roadbed settlement caused by migration and uneven distribution of water and salt in the salinized soil roadbed is reduced.

The invention belongs to the technical field of sewage treatment, and particularly relates to an oxygen gradient self-coupling granular sludge partition reactor which comprises a reactor body, the reactor body is of a vertically-arranged tower structure, and an aeration system, a water distribution system, a partition assembly, a three-phase separator, a gas collection assembly, a water outlet assembly and a sludge discharge port are arranged in the reactor body. Wherein at least one layer of separation assembly is arranged, and the separation assembly divides an inner cavity of the reactor body into a first reaction function area and a second reaction function area which are connected in series up and down; the separation assembly comprises PET geotechnical cloth, and grating supporting plates are arranged on the upper side and the lower side of the PET geotechnical cloth. The functions of aeration, reaction, separation, water outlet and the like are integrated through a vertical tower type structure, high efficiency and energy conservation in the sewage treatment process are achieved, nitrification and denitrification reactions are synchronously completed in a single reactor by utilizing an oxygen gradient self-coupling mechanism in aerobic granular sludge, a traditional nitrification liquid internal reflux and sludge reflux system is not needed, and the cost is reduced. And the energy consumption and the operation cost are obviously reduced.

The invention belongs to the technical field of crossing of artificial intelligence and computational mechanics, and particularly relates to an artificial intelligence-based MPM simulation method and system for a mold bag sand cofferdam, a three-dimensional simulation system of the mold bag sand cofferdam is constructed in combination with an MPM method, and the penetration state of sand and geotechnical cloth is detected in an accelerated manner by utilizing a penetration tracking algorithm and spatial Hash. An artificial intelligence algorithm is introduced, a reward function is designed with minimum penetration depth and penetration times as targets, penetration prediction of MPM particles is driven, the speed and stress of the MPM particles are further dynamically regulated and controlled on the basis of a predicted contact model and the artificial intelligence algorithm, penetration is prevented, numerical stability is ensured, and the prediction accuracy of the MPM particles is improved. The calculation precision is improved by adopting implicit integration and gradient descent methods; and bidirectional coupling of the sand and the geotechnical cloth is realized through a visualization module. The problems that in a traditional method, coupling simulation of sandy soil and a flexible structure is low in efficiency, easy to penetrate, unstable in numerical value and the like are solved, and the accuracy and reliability of simulation analysis of the mold bag sand cofferdam structure under the complex working condition are remarkably improved.

The invention discloses an expansive soil roadbed drainage anti-seepage structure and a construction method, and relates to the technical field of expansive soil roadbed construction.The expansive soil roadbed drainage anti-seepage structure comprises a roadbed body and geotechnical cloth and further comprises a laying mechanism arranged on a moving vehicle and used for laying the geotechnical cloth, and the laying mechanism comprises an L-shaped plate slidably connected to the moving vehicle; the end, away from the moving trolley, of the L-shaped plate is connected with a U-shaped frame, the U-shaped frame is rotationally connected with a rotating shaft, the geotechnical cloth is wound around the rotating shaft, and a first motor used for driving the rotating shaft to rotate is arranged on one side of the U-shaped frame. According to the expansive soil roadbed drainage anti-seepage structure and the construction method, through the arrangement of the laying mechanism, an operator does not need to conduct manual laying operation on the inclined side wall of the side ditch, then the safety of geotechnical cloth laying is improved, and meanwhile under the cooperation effect of the pressing assembly and the driving assembly, the anti-seepage performance of the side ditch is improved.

The invention provides a phase change-moisture absorption and drainage composite roadbed structure in a seasonal frozen region and an intelligent regulation and control method, and relates to the technical field of roadbed design and renovation. The roadbed structure is characterized in that a plurality of gradient phase change material layers are arranged on the top surface of a roadbed surface layer; the multi-layer gradient phase change material layer, the high moisture absorption and drainage geotextile layer and the drainage pipe system are arranged from top to bottom; the phase change temperature intervals and the phase change latent heat of the phase change layers in the multiple gradient phase change material layers are different; the high moisture absorption and drainage geotextile layer is used for guiding water in the soil body into the drainage pipe system; the drainage pipe system is of a porous structure with the inclination angle within the set angle range and is used for guiding water in the soil into the drainage ditch. And the intelligent regulation and control system is used for dynamically regulating the thermal resistance of each phase change layer and the opening degree of the drainage pipe. According to the invention, the time of the roadbed in a relatively stable physical state can be prolonged, so that the purpose of preventing and treating winter frost heaving, frost boiling and mud rising in a spring melting period and other diseases caused by temperature change of the roadbed in severe cold areas is achieved.

The utility model relates to the technical field of geocells, in particular to a geocell with fastener joints. Specifically, for any belt body of the geocell, a plurality of clamping parts which are evenly distributed in the length direction of the belt body are arranged on the belt body, and each clamping part is composed of a plurality of parallel kerfs; for any node of the geocell, two fasteners and a locking piece are arranged at the node; the fastener comprises a base body, and a plurality of limiting units are fixedly arranged above the base body; under the condition that the two fasteners are fastened oppositely, the limiting unit of one fastener is embedded with the limiting unit of the other fastener; the clamping parts of the two belt bodies at the node are overlapped, and the overlapped clamping parts are clamped between the limiting unit of one fastener and the limiting unit of the other fastener by the two fasteners; and the locking piece is used for locking the two fasteners which are oppositely fastened at the node. The joints of the geocell are excellent in mechanical property, and the geocell further has the advantages of being high in safety and low in cost.

The invention relates to a construction method for a roadbed penetrating through a V-shaped valley area, and belongs to the technical field of foundation engineering and foundation treatment. The problems of low foundation drainage efficiency, filling side slope instability and differential settlement control in V-shaped valley roadbed construction are solved. According to the technical scheme, a groove is dug along the bottom of a valley, a gravel drainage blind ditch wrapped by permeable geotextile is laid, and a foundation drainage system is formed; during layered filling, a vibratory roller with a piezoelectric sensor embedded into a steel wheel is adopted; after every two layers are filled, one-way geogrids are laid along the slope and vertically anchored into the compaction layer through U-shaped anchoring parts; a transverse drainage pipe is pre-buried when filling is conducted to a foundation bearing capacity sudden change point threshold value; and after filling is completed, a settlement monitoring array is arranged. According to the method, through system integration of foundation drainage structure optimization, filling body intelligent compaction and differential settlement dynamic treatment, the bearing stability of the fill roadbed under the complex terrain is remarkably improved, and the method is suitable for foundation construction and disaster prevention and control of the V-shaped canyon section of the mountain road.

The invention discloses a quick blocking system for a dike breach, which belongs to the field of hydraulic engineering equipment and comprises a pushing support fixed on a dike through a positioning anchor rod and a fixed arm slidably arranged along the length direction of the dike, and the pushing support is connected with the fixed arm through hydraulic pushing translation equipment. One end of each fixed arm extends to the position above the dike breach, the two fixed arms are parallel to each other, a longitudinal supporting arm is arranged at the end, away from the pushing support, of each fixed arm, the longitudinal supporting arms are arranged between the two fixed arms, and positioning guide seats are arranged on the longitudinal supporting arms and the fixed arms correspondingly; the positioning guide seats are used for positioning the blocking anchor rods, the blocking anchor rods are downwards anchored into a foundation of the embankment breach along the positioning guide seats, and the breach is blocked by throwing geotechnical cloth sandbags or large stones or steel mesh gabions into an area formed by the blocking anchor rods. The problem that when a blocking medium is directly fed into the breach, the blocking medium is not stable under the impact of water flow and is directly washed away is solved.

The invention relates to the technical field of geotechnical cloth, and discloses high-toughness water-guiding extra-strong woven geotechnical cloth which comprises high-strength polyester fibers and carbon fibers, a splicing frame is fixed to the outer side of an edge sealing frame, an annular groove is formed in the upper end face of the splicing frame, absorbent cotton is clamped in the annular groove, springs are fixed in the absorbent cotton, and the springs are fixed to the outer side of the splicing frame. And a second drainage hole is formed in the bottom of the splicing frame. The high-toughness water-guiding extra-strong woven geotechnical cloth is composed of warp-direction high-strength polyester fibers and 12k and 24k carbon fibers, the warp-direction high-strength polyester fibers are composed of four thousands of to ten thousands of high-strength polyester fibers and extra-strong heat absorption carbon fibers, every one hundred of high-strength polyester fibers comprise two to fifty heat absorption carbon fibers or more, and the other hundred of high-strength polyester fibers are composed of one or more than one hundred of heat absorption carbon fibers and one or more than one hundred of high-strength polyester fibers and one or more than one hundred of heat absorption carbon fibers. And in the weft direction, 10,000-20,000 D high-strength polyester fibers are woven, so that the strength of the product is conveniently increased, and the heat conduction and water conduction of the product are more stable and faster.

The invention discloses a three-dimensional visual monitoring system for a geotextile laying ship, and the system comprises a data transmission module which is used for collecting and storing the monitoring data of the geotextile laying ship in real time through a sensor; the somatosensory module is used for capturing limb actions of the user through various hardware devices and recognizing user voice; the virtual environment generation module is used for receiving the transmission data of the data transmission module and the somatosensory module and constructing a virtual arrangement environment highly similar to the operation site of the arrangement ship; the user interaction monitoring module is used for enabling monitoring personnel to control the virtual arrangement environment, check all angles and details of the arrangement ship, judge whether the arrangement ship is abnormal or not and record the abnormality on the basis of the virtual environment generation module; and the exception handling module is used for recording and reporting exception information when the user interaction monitoring module inspects the exception. According to the invention, visual, efficient and safe three-dimensional visual monitoring experience is provided for arrangement construction.

The utility model relates to the technical field of drainage, in particular to a water seepage and drainage blind pipe structure which comprises a water seepage and drainage blind pipe assembly, geotechnical cloth is attached to the outer wall of the water seepage and drainage blind pipe assembly, a butt joint assembly is installed on one side of the water seepage and drainage blind pipe assembly, and a second partition plate is installed on the inner wall of the water seepage and drainage blind pipe assembly. The water seepage and drainage blind pipe assembly comprises a pipeline, a connecting block is installed at the front end of the pipeline, an annular inserting block is arranged on one side of the pipeline, and a first sealing ring is connected to one side of the annular inserting block in a glued mode. According to the improved water seepage and drainage blind pipe structure, the sealing performance of the butt joint gap of the two sets of water seepage and drainage blind pipes is improved, accumulated water containing sludge is prevented from directly entering the water seepage and drainage pipes from the butt joint gap between the water seepage and drainage pipes, and the water seepage and drainage blind pipes are prevented from being blocked; the situation that water flowing in a pipeline seeps outwards from the bottom of the pipeline, and consequently the drainage efficiency is low is reduced.

The invention discloses a high-strength geotextile and a preparation method thereof, and belongs to the technical field of geosynthetic materials, the high-strength geotextile comprises a polypropylene geotextile and a protective layer, and the preparation method of the high-strength geotextile comprises the following steps: soaking the polypropylene geotextile in titanium dioxide hybrid silica sol for dipping finishing for 30-40 min, and drying at 80 DEG C to constant weight to obtain the high-strength geotextile. The high-strength geotextile is obtained. In order to solve the problem of poorer aging resistance of polypropylene geotextile taking polypropylene as a raw material, titanium dioxide hybrid silica sol in the invention takes tetraethyl orthosilicate, long-chain alkyl silane, vanillin modified silane and tetrabutyl titanate as raw materials, and titanium dioxide and organic siloxane raw materials with different properties are introduced into a protective layer; the product strength, the acid and alkali / metal ion resistance, the ultraviolet radiation resistance and the like are improved, and the safety and the long-term effect of the product in a complex and harsh environment are enhanced.

The invention discloses a river and lake sludge dewatering and curing ecological bank protection process. Ecological bank protection construction is achieved through in-situ resourceful treatment of sludge. The process comprises the following steps: firstly, pressing natural wood piles into the bottom of a bank slope to form a comb-shaped anti-sliding bent frame, and paving high-strength permeable geotextile pipe bags between the piles and the bank slope; bottom mud is extracted by adopting mud suction equipment, is modified by a flocculating agent and then is injected into a tubular bag in a layered manner, and gravity dehydration is completed by utilizing the permeable characteristic of tubular bag fabric; the tops of the pipe bags are backfilled with stacking materials for graded stacking, and solidification is accelerated through external pressurization to form a stable bank protection filling body; and finally, the surface layer is covered with planting soil, moisture-proof plants are planted, and the composite revetment with the permeation drainage function and the ecological function is constructed. Compared with a traditional technology, the technology effectively solves the problems of bottom mud outward transportation pollution and resource waste through triple synergy of geotextile tube bag gravity dehydration, natural timber pile stability enhancement, building body strength improvement through graded stacking and loading and the like, and the formed revetment has ecological restoration and landscape functions. The method is suitable for ecological restoration of rivers and lakes, wetland reconstruction and waterfront environment treatment, and has the comprehensive advantages of convenience in construction, environmental friendliness, economy and high efficiency.

The invention discloses an efficient dehydration treatment device for waste engineering slurry and a dehydration method of the efficient dehydration treatment device. Relates to the technical field of rapid dehydration of high-water-content waste slurry. The dehydration treatment device comprises a waste slurry pipeline conveying module, a precise dosing module, a multi-stage pipeline mixing and dissolving module and a geotextile tube bag dehydration module which are connected in sequence. Accurate dosing can be achieved according to the water content of the slurry in the slurry sedimentation tank, negative effects on the flocculation effect of the slurry due to too much or too little flocculants are avoided, use of flocculant materials is reduced, the material cost is greatly reduced, meanwhile, the flocculants are arranged, the cationic flocculant YAPAM is adopted as the flocculants, and the flocculation effect of the slurry sedimentation tank is improved. The flocculant has the advantages of small dosage, good flocculation effect, environmental protection and the like. In the flocculating settling process of the slurry, soil particles in the slurry can be rapidly gathered and precipitated through the effects of electric neutralization and adsorption bridging, and the formed floc is stable in structure, large in size and not prone to being broken.

The invention provides high-temperature-resistant geotechnical cloth and a preparation method thereof, and belongs to the field of building materials. The polyether-ether-ketone is aminated through phenylenediamine, and maleic anhydride is grafted, so that gradient polar group distribution is formed, and the interface bonding force and compatibility are improved; meanwhile, carboxyl and epoxy groups are introduced to modify polyether sulfone, a complementary network is formed, and the matrix toughness and the interface bonding force are enhanced; phosphate provides polar binding sites on the surface of aluminum nitride, and the ionic liquid forms a heat-conducting network, so that the heat conduction efficiency is improved; silane groups provide chemical binding sites on the surface of silicon carbide, and dopamine forms a secondary structure on the silicon carbide, so that the interface binding force is enhanced; polyether-ether-ketone with an amino-maleic anhydride structure is interwoven with a carboxyl-epoxy group of polyether sulfone to form an interpenetrating network, so that the toughness and thermal stability of a matrix are improved; the multi-layer interface structure of aluminum nitride and silicon carbide is beneficial to uniform stress transfer and interface firmness.

The geomembrane unfolding device comprises a bottom frame, a first supporting column is arranged above the rear end of the bottom frame, the top of the first supporting column is connected with a U-shaped supporting block, and a rolling shaft is movably arranged in an inner cavity of the U-shaped supporting block; the feeding rollers and the rubber sleeve are used in cooperation, the geomembrane is clamped between the two feeding rollers, when the geomembrane is cut off, the cut-off position of the geomembrane cannot be thrown away, the use safety is high, due to the arrangement of the rubber sleeve, the rotation damping of the rolling shaft is increased, and when the first motor stops working, the rolling shaft cannot rotate, so that the service life of the geomembrane is prolonged, and the service life of the geomembrane is prolonged. And the rotation amplitude of the rolling shaft influenced by inertia can be reduced, so that the situation that the geomembrane is scattered after the equipment is stopped is avoided, and the overall practicability is improved.