2091results about "Dams" patented technology

The invention discloses a dike safety monitoring and maintenance system and method based on multi-sensor fusion, and belongs to the technical field of hydraulic engineering safety. Comprising a pore water pressure sensor, a horizontal displacement sensor, a vertical displacement sensor, a seepage monitoring sensor, a data acquisition and transmission module and a data acquisition center. And the precision of the sensor is high, for example, the precision of a pore water pressure sensor is within + / -0.1 kPa. And the transmission module adopts a hybrid communication network which is mainly composed of an optical fiber and is assisted by ZigBee and LoRa wireless. The data acquisition center is provided with a high-performance processor and the like. The method comprises the steps of data acquisition, preprocessing, anomaly detection and early warning, risk assessment, maintenance strategy formulation and the like. Data are processed through joint filtering, dynamic normalization and other algorithms, the safety state is judged through clustering analysis and a composite early warning model, and risks are evaluated by integrating multiple factors. According to the method, the accuracy, scientificity and effectiveness of dike safety monitoring and maintenance are remarkably improved, and a powerful guarantee is provided for hydraulic engineering safety management.

The invention discloses a template embedded type dam face permanent heat preservation protection module and a prefabrication and construction method. Comprising a heat preservation core layer, a facing anti-seepage protection layer is arranged on the side, close to a concrete pouring formwork, of the heat preservation core layer, an internal pressure-bearing protection layer is arranged on the side, close to dam surface layer crack limiting steel bars, of the heat preservation core layer, and a thermal broken bridge supporting keel is arranged in the heat preservation core layer; an anchoring device is arranged in the area between the internal pressure-bearing protection layer and the dam surface layer crack limiting steel bars. The modular prefabrication and construction method is adopted, the prefabrication and installation method of a single module is simple and efficient, details such as anchoring protection measures are fully considered, the engineering construction operability is high, convenience and high efficiency are achieved, and the construction time of the heat preservation layer is greatly saved.

The invention relates to the field of seawalls, in particular to a marine ecological restoration seawall based on a sand beach and a construction method thereof. The seawall comprises three defensive lines, the first defensive line serves as a wave dissipation platform by laying an artificial sand beach, and an original wave wall and a riprap protection bottom are transformed to construct a first-stage wave wall; curbs are heightened and transformed into secondary wave walls by the middle road defense line, and a levee top road is laid to serve as a wave dissipation platform; a flower bed is transformed on a rear defense line, a low retaining wall is a three-stage wave wall, a drainage system is arranged, and residents are protected by combining buildings behind the road and flood prevention measures. The three-dimensional defense line can achieve wave dissipation and damp blocking, and the wave overtopping amount is reduced. The method aims at the shoreline with the requirement for the dike crest elevation and insufficient moisture-proof capacity in marine ecological restoration, and is particularly suitable for constructing a mature urban dike. The damp-proof flood-proof seawall aims at keeping the original appearance of the seawall as much as possible, reducing damage to existing roads and environments, improving the damp-proof capacity, promoting organic fusion of the seawall and surrounding characteristics and building the damp-proof flood-proof seawall for marine ecological restoration.

An erosion coast ecological protection system comprises: ecological submerged dikes, tidal flat habitats, vegetation habitats and ecological breeding areas arranged in sequence from sea to land on the erosion coast; the ecological submerged dikes are arranged in the subtidal zone parallel to the coast, the overall structure is composed of multiple sections of submerged dikes and gates, and the length of a single section of submerged dikes is not less than 8 times the wavelength; the tidal flat habitat is connected with the ecological submerged dike and is properly decorated according to the tidal flat terrain to form a multiple habitat consisting of shallow water areas and deep water areas; the vegetation habitat area is located in the intertidal zone, and its outer edge is arranged with riprap to avoid tidal channels, the slope is about 1:2-1:3, and a vegetation belt of not less than 50m wide is planted on the land side; the ecological breeding area is provided with a plurality of breeding ponds with field-shaped channels, the top width of the channel is about 4-6m, and several rows of tamarisks are planted to form a wind-resistant buffer zone.

The utility model relates to an ecological seawall structure, which belongs to the technical field of bank protection engineering and comprises a seawall foundation, the seawall foundation comprises a slope top and a slope body, and a retaining wall structure is arranged at the joint of the slope top and the slope body. An arc-shaped wave dissipation ridge is arranged at the position, spaced by a certain distance from the retaining wall structure, of the top end of the slope body, a cushion layer is laid at the position, located between the arc-shaped wave dissipation ridge and the retaining wall structure, of the top end of the slope body, and the cushion layer comprises a dry stone cushion layer and a broken stone cushion layer which are sequentially arranged from top to bottom. A first block stone cushion layer is laid at the position, located on the side, away from the retaining wall structure, of the arc-shaped wave dissipation ridge, of the top end of the slope body, extends to the bottom of the slope body and further extends outwards to be connected with a second horizontal block stone cushion layer, and a first concrete retaining wall is arranged at the joint of the first block stone cushion layer and the second block stone cushion layer. The accropode is laid at the top end of the second block stone cushion layer and located on the outer side of the first concrete retaining wall. The safety of the seawall can be effectively guaranteed, and the stability of the seawall structure is guaranteed.

The invention relates to the field of silt silt coast restoration, in particular to a protection system construction method suitable for an erosive silt silt coast, which adopts engineering measures such as a water-permeable offshore submerged embankment and a riprap protection bank on the seaside of a vegetation restoration area to dissipate waves, and adopts the riprap protection bank to prevent a high beach from being further eroded. By reserving the tide passageway, the vegetation restoration area is kept to be communicated with a water system of an open sea, more suitable conditions are provided for vegetation restoration, and the survival rate of plants for vegetation restoration on an erosive beach is increased. The degraded wetland habitat of an erosive beach is recovered, the structural integrity and the functional stability of a coastal zone ecological system are improved, the capability of resisting marine disasters is improved, and the regional ecological safety is guaranteed.

The utility model discloses a river channel engineering construction slope protection structure, which belongs to the field of slope protection structures, and is characterized by comprising a body mechanism, a connecting mechanism is mounted at the outer end of the body mechanism, a slope protection mechanism is mounted at the outer end of the connecting mechanism, the connecting mechanism comprises reinforcing plates, the reinforcing plates are uniformly distributed at the outer end of the body mechanism, mounting frames which are symmetrically distributed are mounted at the outer ends of the reinforcing plates, and connecting rods are mounted at the outer ends of the mounting frames. The inner end of the mounting frame is slidably connected with a positioning rod; by arranging the connecting rods and the positioning rods, when the slope protection reinforcing structure is installed, the positioning rods at the outer ends of the multiple reinforcing plates are inserted into the inner end of the mounting frame outside the other reinforcing plate, the multiple reinforcing plates can be conveniently assembled, the positioning rods drive the clamping blocks to be stably clamped to the inner ends of the connecting rods, and therefore the multiple reinforcing plates are more convenient to assemble; arrangement and installation are convenient, and the protection effect of the slope protection structure is improved.

The utility model relates to the technical field of water conservancy flood control, and discloses a height-adjustable flood control device which comprises a flood control bank, a containing groove is formed in the top of the flood control bank, a baffle is connected to the inner wall of the containing groove in a sliding mode, a self-adjusting assembly is arranged in the flood control bank, and the self-adjusting assembly comprises a piston groove, a piston rod and a piston rod, according to the flood control device with the adjustable height, through the arranged self-adjusting assembly, when flood swells suddenly, water pressure is increased, a movable plate is pushed, a fixed rod is driven to move rightwards, rotation is conducted through an abutting rod and an arc-shaped sliding groove, a first driving gear, a second driving gear, a worm, a worm wheel and a rotating rod, meanwhile, a volute spiral spring is wound, and a baffle is made to ascend through threads; and therefore, the height can be automatically adjusted, flood leakage, water pressure drop and release of a volute spiral spring caused by sudden flood expansion are avoided, a rotating rod, a worm gear and a worm are driven, a second gear drives a first gear to rotate reversely, and a fixed rod drives a movable plate to return.

The invention relates to the technical field of water conservancy flood control engineering, in particular to a multi-element monitoring intelligent flood control dam. The system comprises a dam body structure system and a monitoring system, the monitoring system comprises a water body monitoring system and an environment monitoring system, the dam body structure system comprises a fixed dam body and a movable dam body, and the water body monitoring system comprises a water level monitoring device, a flow monitoring device and a flow velocity monitoring device. The environment monitoring system comprises a rainfall monitoring device and a soil body monitoring device. The dam body structure system is used for adjusting water storage and flood control, the monitoring system is used for monitoring related data of a dam body and a river channel, disaster prediction and early warning can be conducted by means of various data, the safety of the dam and the downstream is effectively guaranteed, and the water body monitoring system is beneficial for guaranteeing monitoring of the upstream of the dam body. The environment monitoring system is favorable for predicting the influence on the river channel and the dam body through monitored environment data, and comprehensively judging and predicting natural disasters and environment changes.

The utility model discloses a template embedded type dam face permanent heat preservation protection module. Comprising a heat preservation core layer, a facing anti-seepage protection layer is arranged on the side, close to a concrete pouring formwork, of the heat preservation core layer, an internal pressure-bearing protection layer is arranged on the side, close to dam surface layer crack limiting steel bars, of the heat preservation core layer, and a thermal broken bridge supporting keel is arranged in the heat preservation core layer; an anchoring device is arranged in the area between the internal pressure-bearing protection layer and the dam surface layer crack limiting steel bars. The modular prefabrication and construction method is adopted, the prefabrication and installation method of a single module is simple and efficient, details such as anchoring protection measures are fully considered, the engineering construction operability is high, convenience and high efficiency are achieved, and the construction time of the heat preservation layer is greatly saved.

A leaching and desalinating system for sandy soil in estuarine land reclaimed by sand blowing before planting greenery is provided. The leaching and desalinating system comprises a water pump and pipe assembly, a freshwater storage tank and a main diverting and draining channel. The water pump and pipe assembly lifts freshwater from a river to the freshwater storage tank through a water delivery pipe, multiple infiltration parts in which greenery is planted are provided on the waterside slope, the infiltration parts are connected to each other via multiple drainage infiltration channels. The present disclosure can quickly desalinate the sandy soil in land reclaimed by sand blowing at a low cost, improve the physicochemical properties of the soil, and provide a basic guarantee for the subsequent greenery planting on the sandy soil in land reclaimed by sand blowing.

The utility model discloses a water conservancy project anti-scour ecological dam which comprises an ecological dam body and an anti-scour mechanism, the anti-scour mechanism comprises a plurality of partition plates, and a polygonal building structure formed by stacking a plurality of regular hexagonal prism gabion nets is arranged on one side between any two adjacent partition plates. A plurality of mounting holes are formed in one side of each partition plate, and a riprap filling layer is arranged in an enclosure structure formed by the multiple polygonal building structures matched with the two adjacent partition plates and the slope toe of the ecological dam body. According to the anti-scouring ecological dam for the water conservancy project, the regular hexagonal prism gabion net is used for replacing an existing gabion net for construction of a protective barrier, a multilateral construction structure can be built, a scoured face of a polyhedral structure can be formed, the bearing area is increased, and by cooperation with side face supporting of the partition plates and rear supporting of the riprap filling layer, the anti-scouring ecological dam is more stable in performance. The stability of the protection structure is effectively improved, and the collapse probability is reduced.

The utility model discloses a water conservancy construction device, relates to the technical field of water conservancy project, including support frame, baffle plate body and lock rod, both sides inside baffle plate body are provided with the storage cavity, and the inner side of storage cavity is equipped with extension plate, one side of extension plate is connected with support frame, and the lock rod is connected with the support frame. Fixing cones are connected to the two sides of the bottom end of the supporting frame correspondingly, a lead screw is installed on the inner wall of the upper portion of the baffle body, and a rotary knob is connected to one end of the lead screw. The screw rod is rotated through the rotary knob, the screw threads are matched, the movable sleeves on the two sides drive the extension plates to move towards the outer side at the same time, the width of the baffle body is adjusted, adjustment and use can be conveniently conducted according to the width of a water channel, applicability is high, and the problem of poor applicability is solved.

The invention discloses a dam leakage detection method and system based on an unmanned aerial vehicle and deep learning. The method comprises the following steps: acquiring dam surface image data through the unmanned aerial vehicle carrying image acquisition equipment; preprocessing the obtained dam surface image data; performing feature extraction and fusion on the preprocessed image data based on a deep learning model to obtain a multi-modal coupling feature image related to the leakage area; performing target detection on the multi-modal coupling feature image to identify a leakage area; and carrying out spatial positioning on the identified leakage area to determine a positioning coordinate of the leakage area. Dam leakage is detected by combining the unmanned aerial vehicle technology and the deep learning algorithm, the automation and intelligence level of detection is improved, manual intervention and errors are reduced, and the detection precision and efficiency are improved.

The invention discloses a grouting reinforcement anti-seepage method for a dam body of a coal mine underground reservoir, which comprises the following steps of: constructing a grouting hole at an artificial dam body position of a dam body to be treated, and performing segmented grouting on the grouting hole; the grouting materials are spread to the interiors of the artificial dam bodies, the interiors of the coal pillar dam bodies, the connecting positions between the artificial dam bodies and the coal pillar dam bodies, the connecting positions between the artificial dam bodies and the top plate rock stratum and the connecting positions between the artificial dam bodies and the bottom plate rock stratum; therefore, micropore cracks in the to-be-treated dam body and the connecting positions between the to-be-treated dam body and the top plate rock stratum and between the to-be-treated dam body and the bottom plate rock stratum can be effectively blocked, the leakproofness and the anti-seepage performance of the coal mine underground reservoir dam body are remarkably improved, and effective anti-seepage reinforcement of the coal mine underground reservoir dam body is achieved.

The invention relates to the technical field of emergency rescue equipment, in particular to a sandbag rapid filling device for flood fighting and emergency rescue, which comprises a base, a sand hopper and a filling unit, the sand hopper is fixedly arranged on the base, the sand hopper comprises a hopper body with a large upper opening and a small lower opening, a sand outlet is arranged at the bottom of the hopper body, and an on-off device is arranged at the sand outlet; a filling unit is arranged below the sand hopper, the filling unit can be mounted on the base in a left-right sliding manner, and the filling unit comprises a sand bag frame and a gland; during use, sand is contained in the sand hopper, a sand bag is placed in the sand bag frame, the edge of the sand bag is pressed on an opening of the sand bag frame through the gland, the filling unit is moved to the position under the water outlet, the on-off device is turned on, the sand in the sand hopper is filled into the sand bag, and after the sand bag is full, the on-off device is turned off, the filling unit is moved out, and the gland is opened. And the full sandbag is taken out. According to the rapid filling device, the sand bag filling speed and efficiency are improved, and powerful support is provided for emergency measures such as flood fighting and emergency rescue.

The bank protection cofferdam structure comprises a first pile row and a second pile row which are arranged in parallel, the first pile row and the second pile row are driven in soil, the upper end of the first pile row and the upper end of the second pile row are connected through an opposite-pulling mechanism, a first bamboo raft sheet layer and an anti-seepage geomembrane are arranged on the inner side of the first pile row, and a second bamboo raft sheet layer and an anti-seepage geomembrane are arranged on the inner side of the second pile row. A second bamboo raft piece layer and geotechnical cloth are arranged on the inner side of the second pile row, backfill soil is arranged between the first pile row and the second pile row, and bagged soil is evenly laid on the top of the backfill soil. The anti-seepage performance and the stability of the revetment cofferdam structure can be improved.

The present invention relates to a riparian zone of a reservoir, which zone is arranged on a side slope of a river, lake or reservoir. The riparian zone has a low-frequency submergence area, a relatively-low-frequency submergence area, a medium-frequency submergence area, a relatively-high-frequency submergence area and a high-frequency submergence area, which are sequentially arranged on a side slope of a reservoir from top to bottom and are distributed according to a cumulative submergence frequency of the side slope of the reservoir; a submerged bank structure is arranged in the relatively-high-frequency submergence area, and vegetation of the relatively-high-frequency submergence area is planted on the submerged bank structure of the relatively-high-frequency submergence area; vegetation of the medium-frequency submergence area is planted in the medium-frequency submergence area; and vegetation of the relatively-low-frequency submergence area is planted in the relatively-low-frequency submergence area.

The invention discloses a water level sensing automatic height changing dam flood control structure, which belongs to the technical field of water conservancy projects and mine tailing ponds and comprises a side slope, foundation piles vertically poured in the side slope and a dike mounted at the tops of the foundation piles. The protection plate is vertically and slidably arranged at the bottom of the inner side of the dike, and the protection plate is located below the water surface in the initial state, so that protection can be formed between the dike and the side slope, scouring of river water to the side slope is reduced, and the stability of the dike is ensured; and a lifting mechanism consisting of a wire coil, a motor, a speed reducer, a sling, a first rotating roller, a second rotating roller and a liquid level switch is matched for use, so that after flood reaches a set height, the starting of the lifting mechanism can be automatically controlled, the protection plate is lifted at a fixed height and does not shake along with the rising of the liquid level, and the protection stability is improved; and in addition, after the liquid level is lower than the set height, the protection plate can be automatically released through the lifting mechanism, and the practicability is higher.

The invention discloses a water conservancy project water retaining construction water stop anti-seepage device which comprises a water stop plate, a switching assembly, a supporting assembly and a stretching assembly, one side of the water stop plate is fixedly connected with a positioning frame, the interior of the water stop plate and the interior of the positioning frame communicate with each other, and the two ends of one side of the water stop plate are each provided with a vertical groove allowing the supporting assembly to be unfolded. Scraping plates are fixedly connected to the two sides of the water stop plate and correspond to the stretching assemblies in position. By arranging the supporting assembly, the water stop plate is supported, and meanwhile the load borne by the water stop plate is effectively dispersed; by arranging the stretching assembly, plugging and water stopping are achieved by self-adaption to the width of the water channel, the stretching process has self-locking performance, and the risk that water flow leaks at the gap is further effectively reduced; and by arranging the switching assembly, the device is automatically switched to the water channel plugging operation after completing the supporting and unfolding operation, so that the operation amount of personnel is effectively reduced, and the working efficiency of the device is improved.

The invention belongs to the technical field of hydraulic engineering, and discloses a hydraulic engineering flood prevention water retaining device which comprises a water retaining plate, butt joint mechanisms arranged on the two sides of the water retaining plate and a water guide mechanism installed in the water retaining plate, a reinforcing mechanism is arranged on the side, adjacent to the butt joint mechanisms, of the water retaining plate, and an anti-skid pad is installed on the lower surface of the water retaining plate; the butt joint mechanism comprises a fixed plate and a butt joint block which are fixedly connected to the two sides of the water baffles, through the design of water baffle sealing, sealing rubber strips and the butt joint mechanism, the position of a movable plate is adjusted through a locking bolt, then the butt joint block is clamped by two sets of prisms, the adjacent water baffles are spliced, the sealing rubber strips extrude each other during splicing, and therefore the sealing effect is achieved. The sealing rubber strip effectively enhances the sealing performance of the butt joint position of the water baffles, and the water leakage phenomenon is prevented to a great extent. And the trapezoidal water tank scientifically guides water flow, so that accumulated water is prevented from generating extra pressure on the water baffle, and the service life of the water retaining device is prolonged.

The present invention discloses a foldable water conservancy and flood prevention device, which relates to the technical field of water conservancy and flood prevention facilities, and comprises a base placed horizontally on the ground, one side of the base being foldably hinged with a water baffle, a telescopic rod for adjusting the folding angle being connected between the base and the water baffle, and an anti-seepage cloth for blocking ground leakage is provided at the bottom of the base. The foldable water conservancy and flood prevention device uses a pressing mechanism to cause a pressing frame to lead out of the base and tilt and deflect toward a step surface, so that the unfolded abutting frame drives a cross bar to press against the anti-seepage cloth laid on the step surface, so that the anti-seepage cloth can abut against the inner right angle of the step, and at the same time, the teeth on the lower surface of the pressing frame abut against the outer right angle of the step surface, so that the anti-seepage cloth can be stably and flatly laid on the step surface, and at the same time, the hollow water blocking plate and the filter plate can cooperate to block and protect the water baffle and the anti-seepage cloth, ensuring that the water conservancy and flood prevention device has a safe anti-seepage effect when in use.

The invention relates to the technical field of water conservancy project dams, in particular to a water conservancy project dam reinforcing protection assembly and a reinforcing method.The water conservancy project dam reinforcing protection assembly comprises a dam body, a U-shaped frame is detachably connected to the dam body, a movable protection plate is installed on one side of the U-shaped frame, and two telescopic assemblies are slidably installed in the movable protection plate; the reinforcing method comprises the following steps of component mounting and reinforcing, buoyancy adjusting, preliminary water wave blocking and closed shielding. According to the device, the upper end of the baffle is located at the upper end of the water body through the buoyancy effect in the water body through the buoyancy assembly and the high-pressure air bag retraction assembly, and the impact force of water waves is converted to effectively break continuous and uniform impact of the water waves; and when water waves become large, the positions of the baffles can be rapidly locked, the two movable baffles are unfolded, the dam body is fully shielded, the water waves are prevented from directly impacting the dam body, the dam body can be effectively reinforced through the U-shaped frame, and the firmness of the face, facing the water waves, of the dam body is improved.

The utility model relates to the technical field of water conservancy project closure, in particular to a blocking device for water conservancy project closure. Comprising a frame body, a plurality of hanging rings are symmetrically arranged on the upper surface of the frame body, the top end of the frame body is open, drainage parts used for controlling water flow are symmetrically arranged in the frame body, and an inner blocking area is formed between the drainage parts on the two sides; the intercepting parts are used for forming an outer blocking area on the outer sides of the drainage parts and extruding stones in the inner blocking area, and the intercepting parts arranged on the inner sides of the drainage parts on the two sides communicate with water flow in the outer blocking area. The flow speed of water flow is controlled through the drainage plate, resistance borne by the drainage plate during closure can be reduced, the phenomenon that the frame inclines when the frame is placed is avoided, the frame is matched with the dam bodies on the two sides of the closure position, the water flow flows away from the interior of the frame, and therefore the two sides of the dam bodies are prevented from being washed away by the water flow, and the dam bodies are protected.

The invention discloses a multifunctional water retaining device for water conservancy construction, and relates to the technical field of water conservancy projects, the multifunctional water retaining device comprises a base and a first water retaining plate fixed at the top end of the base, a plurality of ground nails are arranged at the bottom end of the base, a self-adjusting assembly and a buffering assembly are arranged in the first water retaining plate, and the buffering assembly is located below the self-adjusting assembly; the self-adjusting assembly comprises an open groove formed in the first water baffle, and a second water baffle is installed in the open groove in a sliding mode. The situation that the height of a traditional water baffle is fixed and cannot be automatically adjusted according to the change of the water level, so that when the water level is higher than the water baffle, the water overflows from the top of the water baffle, and equipment and materials are damaged can be avoided, meanwhile, manual intervention can be reduced, the psychological pressure of constructors can be relieved, the working intensity is reduced, and in an emergency, the construction efficiency is improved. And workers can timely evacuate or take corresponding protection measures, so that the safety can be effectively improved.

The invention discloses a method for near-natural rapid restoration of a degraded wetland by using micro-landform assembly, and belongs to the technical field of wetland ecological engineering. The invention aims to solve the restrictive problems of poor habitat heterogeneity of the degraded wetland and low sustainability of the restored wetland. The method comprises the following steps: 1, restoring wetland site selection and habitat quality evaluation; 2, optimizing the shape of the substrate of the restored wetland and constructing a sheetflood water network; 3, collecting a hill pier body and assembling the hill pier body with a micro-landform; 4, sectional hydrological regulation and dynamic management; and 5, evaluation and mediation management and control of the recovery effect. The method is clear in principle and high in operability, habitat heterogeneity can be enhanced through micro-landform matching so as to promote plant diversity improvement, the design thought conforms to the close-to-nature recovery concept, and any project implementation hidden danger and secondary ecological risk do not exist. The method disclosed by the invention is applied to the near-natural restoration of the degraded wetland. The method is used for near-natural restoration of the degraded wetland with lack of habitat heterogeneity.

The utility model relates to the technical field of water conservancy projects, and discloses a water retaining device based on water conservancy project construction, which comprises a water retaining plate body, the rear side surface of the water retaining plate body is provided with a storage groove, the inside of the storage groove is rotatably connected with a driving rod, and the left side surface of the water retaining plate body is fixedly connected with a motor. An output shaft of the motor rotationally penetrates into the water fender body and is fixedly connected with the driving rod, a connecting assembly is fixedly connected to the surface of the driving rod, two vertical grooves are formed in the inner wall of the storage groove, sliding blocks are slidably connected to the interiors of the vertical grooves, and two first fixing plates are fixedly connected to the surfaces of the sliding blocks; the whole device can be stored by starting the motor, so that the occupied area of the device is greatly reduced, the device is more convenient to stack and transfer when not in use, the convenience and flexibility of the device are greatly improved, meanwhile, the storage mode is simpler and faster, and the practicability is higher.

A combined baffle for flood control, and a mounting method and a usage method. The combined baffle for flood control comprises at least three connected baffles, wherein a rotary pair and a limiting guide structure are provided between connected baffles, such that adjacent baffles rotate from being perpendicular to each other to being attached to each other, and the sequentially connected baffles sequentially rotate and are folded into a Z shape and rotate until the baffles are attached to each other, and when the connected baffles rotate until the baffles are perpendicular to each other, the baffles are connected to form steps and successively extend in a vertical direction and a horizontal direction. The usage method comprises: connecting and forming baffles by means of collision bead snap-fasteners, and after the baffles rotate and are folded and stored or rotate until the baffles are perpendicular to each other, locking and fixing the baffles and entering a usage state; and pressing devices on two sides of the collision bead snap-fasteners to relieve a locked and fixed state, folding the baffles and then storing same, and pulling open the collision bead snap-fasteners in the direction of each tenon to disassemble a baffle group. In the mounting method, each tenon and each mortise are concentric arcs and each use a collision bead snap-fastener of a connecting device as the center; when the tenon is rotationally pulled out of the mortise, adjacent baffles overlap; and after the tenon is rotationally inserted into the mortise, the baffles are unfolded, and the adjacent baffles are perpendicular to each other.

The present invention discloses a breach rapid plugging device and method based on rocket anchors and polymer composite materials, which relates to the technical field of plugging breaches in water conservancy projects, including broken dike heads on both sides of the breach, and the outer periphery of the broken dike heads on both sides is provided with a wrapping structure, the wrapping structure includes a first line of protection and a second line of protection, the second line of protection is connected to a fixed structure, and the fixed structure is arranged on the broken dike head; an entry and closure structure is arranged between the wrapping structures on both sides, and the two ends of the entry and closure structure are connected to the wrapping structures on both sides. The present invention adopts the above-mentioned breach rapid plugging device and method based on rocket anchors and polymer composite materials, adopts a large geotextile to stabilize the dike head, rocket anchors and polymer geosynthetics to quickly plug the breach, and finally adopts a rubber bag to be filled with water for covering and pressing, which further improves the stability of the wrapping head, and has the advantages of fast plugging speed and high efficiency.

The present invention discloses a water-stopping and anti-seepage device for water retaining construction of a water conservancy project, comprising a water stop plate, a switching component, a support component and an extension component, one side of the water stop plate is fixedly connected with a positioning frame, and the insides of the water stop plate and the positioning frame are interconnected, both ends of one side of the water stop plate are provided with vertical grooves for the support component to unfold, and both sides of the water stop plate are fixedly connected with scrapers, and the scrapers correspond to the extension component. The present invention provides support to the water stop plate while effectively dispersing the load on the water stop plate by setting a support component; by setting an extension component, the width of the water channel is adaptively adjusted to achieve blocking and water stopping, and the extension process has self-locking properties to further effectively reduce the risk of water leakage at the gap; by setting a switching component, the device automatically switches to the water channel blocking operation after completing the support unfolding operation, effectively reducing the amount of operation of personnel to improve the working efficiency of the device.