955results about "Dykes" patented technology

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 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 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 discloses an assembly type mortise and tenon joint retention wall and a construction method. The retention wall comprises a foundation base, a vertical water baffle and a dust removal and dirt removal unit. The foundation base is formed by pouring reinforced concrete on the installation site, and a second mortise is formed in the foundation base. A plurality of groups of vertical water baffles are arranged according to water retaining requirements, second tenons matched with the second mortises are arranged at the bottoms of plate bodies of the vertical water baffles, and first mortises and first tenons matched with the first mortises are arranged on the two sides of the plate bodies correspondingly; the foundation base is connected with the vertical water baffles in a two-section mortise and tenon mode, and the water baffles are connected in a mortise and tenon and wedge nail tenon combination mode. The dust removal and decontamination unit comprises a water passing hole, a three-stage reservoir, a dust removal spraying pipe and a dredging spraying pipe; sewage is filtered through the water passing holes, then enters the third-stage water storage pool and is sprayed out from the dust removal spraying pipe and the desilting spraying pipe according to needs, and the dust falling function and the desilting function are achieved respectively. According to the retention wall, the stability of the overall structure is greatly improved, and water resources can be recycled.

The utility model relates to the technical field of steel sheet pile cofferdams, in particular to a detachable cofferdam module for flood control engineering, which comprises a steel sheet pile structure, connecting buckle structures are fixed on two opposite side surfaces of the steel sheet pile structure, each connecting buckle structure comprises a first inserting buckle and a second inserting buckle, and a hollow area is arranged in a steel sheet pile. And a plurality of triangular support frame structures are fixed in the hollow area. The steel sheet pile solves the problems that two adjacent steel sheet piles in the prior art cannot be installed at a right angle or a smaller angle during installation, the structure is simple, and the steel sheet piles are easy to bend.

The invention discloses a three-dimensional water ecological restoration method based on an ecological system, and the method specifically comprises the following steps: S1, carrying out the construction of a temporary dam for a river channel of a construction area, and carrying out the water ecological operation and water level reduction for the construction area; impurity cleaning is conducted on the river channel area after the water level is lowered; s2, in-situ remediation of the bottom mud: scattering a bottom material modifier in the river channel area after the sundries are cleared to complete the in-situ remediation of the bottom mud; submerged plants are planted; s3, after the submerged plants are planted, an ecological water purification barrier and a biological grid are installed, and water purification is conducted; s4, emergent aquatic plant buffer zone planting, microorganism regulation and control and aquatic animal putting are conducted on the two sides of the river channel, a three-dimensional water ecological restoration network is constructed, and water ecological restoration is completed. Through the synergistic effect of the ecological water purification barrier and the biological grid, rapid and high-strength physical adsorption and microbial degradation of pollutants are achieved, meanwhile, ecological niche is built, and recovery of biological diversity is achieved.

The invention discloses water retaining equipment for water conservancy project flood prevention, and relates to the related technical field of the water retaining equipment for flood prevention, the water retaining equipment for water conservancy project flood prevention comprises a supporting mechanism arranged on a water retaining plate, the supporting mechanism is arranged, and the supporting mechanism comprises a fixing plate fixedly arranged on the water retaining plate; a first stress film is further fixedly arranged on the fixing plate, a first oil liquid space is further formed between the first stress film and the water baffle, a layer of oil storage plate is additionally arranged on the flood prevention baffle, a soft film is arranged on the oil storage plate, the soft film is impacted to deform through the impact force of water flow, and therefore the flood prevention baffle is driven by oil liquid, and the flood prevention baffle is driven by the oil liquid. Supporting force is provided for the rear side of the water baffle, the supporting plate on the rear side can exert force for supporting every time when water flow impacts, and therefore the water baffle is stressed more evenly, the whole water baffle is more stable and firmer, and the flood prevention and water retaining effect of the water baffle is greatly improved.

The invention relates to the field of water conservancy projects, in particular to a modular quickly-assembled assembly type flood control sub-embankment for emergency flood control, which comprises a triangular hinge frame, an assembly cross beam is arranged in the triangular hinge frame, and the triangular hinge frame is used for supporting flood control plates and can be folded and stored to reduce the transportation volume; splicing suites are fixedly arranged at the two ends of the assembling beams, and the assembling beams are in rapid butt joint with the assembling beams of other flood control sub-embankments through the splicing suites, so that modular splicing of the multiple sub-embankments is achieved. The water retaining daughter board is fixedly installed on the outer side of the assembly cross beam, the height of the water retaining daughter board is matched with the height of the triangular hinge frame, and the water retaining daughter board is used for blocking flood; and the folding and unfolding mechanism is arranged in the center of the bottom of the triangular hinge frame, according to the modular quickly-assembled assembly type flood control sub-embankment for emergency flood control, through the storage state, all components can be stored in order, and the damage risk in the transportation and storage process is reduced.

The utility model belongs to the technical field of flood control devices, and particularly relates to a flood control device convenient and fast to fill, which comprises a flood control device body, the flood control device body comprises a flood control blocking box, a filling groove is reserved at the top of the flood control blocking box, and a handle is fixedly connected to the inner wall of the filling groove. The top of the flood prevention blocking box is provided with a splicing hole, the bottom of the flood prevention blocking box is in threaded connection with an insertion rod, the surface of the flood prevention blocking box is fixedly connected with a sealing mechanism, the sealing mechanism comprises a bottom sealing gasket, and the surface of the bottom sealing gasket is fixedly connected with the bottom of the flood prevention blocking box; according to the anti-flood wall, a user can conveniently and rapidly fill the interiors of the filling grooves through the arranged anti-flood blocking boxes, the anti-flood blocking boxes can be rapidly spliced into the anti-flood wall body through the splicing holes, the inserting rods, the clamping grooves and the clamping blocks, meanwhile, splicing seams are sealed through the bottom sealing gaskets and the side face sealing gaskets, and therefore the anti-flood wall body is formed. And the use convenience of the flood control device is improved.

The invention discloses a cofferdam staging construction method which comprises the following steps: on the basis of the overall design of a cofferdam, adding a first-stage cofferdam design, and transversely dividing a river channel into a main river channel and a non-main river channel according to hydrological survey information; the first-stage cofferdam comprises an upstream cofferdam, a downstream cofferdam and a first-stage cofferdam overflowing riprap protector from a bank slope on one side of a non-main riverway to a main riverway joint part; the second-stage cofferdam is combined from a bank slope on one side of the main river channel to the first-stage cofferdam to form an integral Meanwhile, a first-stage cofferdam flood season flood season scheme is designed; according to the method, cofferdam filling construction is involved in advance before river closure, and cofferdam implementation is completed in two dry periods; construction of the cofferdam anti-seepage wall is involved in advance, the construction period of the cofferdam anti-seepage wall is prolonged, and equipment needed for construction of the cofferdam anti-seepage wall is greatly reduced; the cofferdam is filled by stages, so that the use efficiency of earthwork equipment is improved; the cofferdam is constructed by stages, so that the construction time of the cofferdam is prolonged, and the construction period of the cofferdam is better guaranteed; and through effective protection measures, the first-stage cofferdam flood safety is guaranteed.

The utility model relates to the technical field of hydraulic engineering, in particular to multipurpose hydraulic engineering emergency rescue equipment. Comprising supporting columns, the two supporting columns are symmetrically arranged, a plurality of arc-shaped clamping jaws are evenly arranged on the supporting columns, the supporting columns are sleeved with the arc-shaped clamping jaws through positioning sleeves, a pre-tightening plate is arranged at the top ends of the supporting columns, and a rapid locking mechanism is arranged on the outer wall of the pre-tightening plate. A linkage rod is jointly connected between the arc-shaped clamping jaws on the same side, and the quick locking mechanism drives the arc-shaped clamping jaws to move synchronously through the linkage rod to clamp a component. The multipurpose hydraulic engineering emergency rescue equipment achieves the rapid, efficient and flexible multipurpose functions, is particularly suitable for reinforcing key structures such as damaged piers and dam supporting columns under the emergency situation, and remarkably improves the efficiency and safety of emergency rescue work.

The invention provides a debris flow geological disaster prevention and control device, system and method. The debris flow geological disaster prevention and control device comprises a base, a connecting base and a supporting beam, a fixed interception dam and an interception dam located on one side of the fixed interception dam are connected through the supporting beam, and the end face, away from a hydraulic cylinder, of a movable interception dam is fixedly installed on the end face of the fixed interception dam; the movable interception dam is made of a flexible material, and a double-layer prevention and treatment net is fixedly mounted on the movable interception dam; the inlet end of the overflow assembly is located between the movable interception dam and the prevention and control net. The outlet end of the overflow assembly penetrates through the fixed intercepting dam, and a spray head of the overflow assembly extends out of the fixed intercepting dam. The debris flow solid weight is obtained, the specific numerical value of the debris flow solid weight is obtained, the debris flow property is judged according to the debris flow solid weight content, then the prevention and treatment device is designed according to the debris flow property, and the overall protection and interception capacity of the prevention and treatment device is improved.

The invention provides an ecological slope protection structure and a construction method thereof, and relates to the field of slope engineering, the ecological slope protection structure comprises a geocell arranged in a shallow soil body of a slope surface, and plants are planted in the geocell; the precast concrete beam is arranged on the upper surface of the geocell and is arranged along the inclination direction of the slope slope surface; the cast-in-place concrete beams are arranged on the slope top, the slope middle and the slope toe respectively, the cast-in-place concrete beam located on the slope top is connected with the top of the prefabricated concrete beam, the cast-in-place concrete beam located on the slope toe is connected with the bottom of the prefabricated concrete beam, and the cast-in-place concrete beam located on the slope middle presses the prefabricated concrete beam on the slope face of the slope. The method has the effect of improving the overall stability of the slope.

The invention is applicable to the technical field of hydraulic engineering and water supply and drainage, and provides a water intake pumping station with a large variable-amplitude water level, which comprises a pump room and a reinforced concrete guide rail arranged on a dam, and moving wheels used for being matched with the reinforced concrete guide rail are arranged on the side surface, close to the dam, of the pump room. The dam is further provided with a lifting assembly used for adjusting the working height of the pump room. The water taking assembly comprises a plurality of pump room water pumps, a telescopic pipe and a water taking opening, the pump room water pumps are arranged in the pump room, the output ends of the pump room water pumps are connected to the same gathering pipe, the gathering pipe is further connected with a main outlet pipe, the input ends of the pump room water pumps are connected with the water taking opening through the telescopic pipe, and a rotary filter screen is arranged at the bottom of the water taking opening; the automatic water suction device can automatically adapt to the variable amplitude of the water level of 20 m or above, the water pump is located at the optimal water suction depth all the time, and the risk of'air suction 'or submerging is avoided.

The utility model relates to the technical field of dam termite prevention and control in water conservancy and hydropower engineering, in particular to a termite prevention and control dam structure which comprises a dam and a multifunctional termite prevention and control device. The multifunctional termite control device system is arranged in a dam with termite damage and comprises an osmotic pressure monitoring pipe, a termite trapping and killing device, a grouting device, an osmotic pressure monitoring device and a cover plate. The construction period and the operation period of the dam are both convenient; on the premise that dam osmotic pressure monitoring is not affected, a cover plate is arranged at the top of the termite prevention and control device, and replacement and long-term use of trapping and killing bags, bait guiding wood and an intelligent monitoring device which are embedded inside are facilitated; in the aspect of grouting control, long-term repeated grouting control can be realized without independent punching; the termites can be trapped, killed and monitored by burying trapping and killing bags, bait guiding wood and an intelligent monitoring device, and meanwhile, grouting measures can be implemented on the premise of low cost when necessary; construction is easy and convenient, the cost is low, and comprehensive control and thorough treatment of the termites are achieved.

The invention discloses an earth and rockfill dam heightening anti-seepage structure, and relates to the field of hydraulic structure construction. A heightened reinforced concrete guide wall is arranged on the top of the original earth-rock dam, a sand cushion layer and a waterproof layer are arranged between the original earth-rock dam and the heightened reinforced concrete guide wall, and the water seepage phenomenon at the connecting position of the heightened reinforced concrete guide wall and the top of the original earth-rock dam is prevented. The limiting structure is arranged at the top of the original diaphragm wall, the heightened reinforced concrete guide walls are poured between the two heightened reinforced concrete guide walls, so that a structure embedded with the limiting structure is formed at the bottom of the heightened diaphragm wall, and the waterproof performance of the connecting position of the heightened diaphragm wall and the original diaphragm wall is improved; the invention further discloses a construction method of the heightened anti-seepage structure of the earth and rockfill dam, and in the pouring process, the stability of the heightened anti-seepage wall structure is improved by controlling the concrete pouring rate, the vibrating rate and the anchor bar prestress.

The invention belongs to the technical field of river ecological protection, and relates to an efficient multifunctional river ecological filter dam and an operation method thereof. Comprising a filter dam body, and a rough filter layer, a middle filter layer, a fine filter layer and a base layer are sequentially arranged in the filter dam body in the water flow direction; the backwashing system comprises a water collecting main pipe, a water distributing pipe, a backwashing pipe, a backwashing branch pipe and a pulse type spray head; the water collecting main pipes extend into the filter dam body from the bank side and are arranged at intervals in the length direction of the filter dam, and the water distributing pipes are evenly distributed in the width direction of the filter dam and communicate with the water collecting main pipes in a one-to-one correspondence mode; each water distribution pipe is connected with a backwashing pipe which is parallel to the fine filtering layer and is provided with a gap, the backwashing pipe is uniformly connected with a plurality of rows of backwashing branch pipes which are upwards inclined along the water flow direction, the lower ends of the backwashing branch pipes are communicated with the backwashing pipe, and the upper ends of the backwashing branch pipes are connected with pulse type spray heads. According to the invention, the problems of easy blockage, low backwashing efficiency and the like of the ecological filter dam of the river channel are solved, and efficient purification and long-acting stable operation of the water body of the river channel are realized.

The present invention relates to the technical field of water interception and drainage structures, and discloses a single-channel water interception and drainage structure that can be quickly constructed, including a water inlet dam, an intermediate dam, a water outlet dam and at least one drainage pipe arranged in a water channel. Along the flow direction of water in the water channel, the water inlet dam, the intermediate dam and the water outlet dam are arranged in sequence and at intervals, and the water channel has a water inlet area, a water isolation area and a water stop area; the drainage pipe has a water inlet end and a drainage end, and the drainage pipe passes through the water inlet dam, the intermediate dam and the water outlet dam in sequence, and the water inlet end extends into the water inlet area, the drainage pipe extends to the outside of the water channel, and the drainage end extends to the drainage area, the water in the water inlet area enters the drainage pipe from the water inlet end, is led to the drainage area by the drainage pipe, and is discharged into the drainage area by the drainage end; the water inlet end has a water inlet, and the water inlet is provided with a filter layer formed by weaving metal wire strips.

The utility model relates to the technical field of ecological slope protection, and discloses a hydraulic engineering ecological slope protection mechanism which comprises a slope protection body and a collecting water channel arranged on one side of the slope protection body, a fence structure is arranged on the surface of the slope protection body, a filter screen is arranged in the collecting water channel, and a lifting structure is arranged in the collecting water channel. A water using structure is arranged on the outer side of the slope protection body, in rainy days, rainwater can be collected through a collecting water channel and filtered through a filter screen, so that clean rainwater is contained in the collecting water channel, then a pump body is started, water in the collecting water channel can be pumped out, and the water is discharged through a guide pipe, a flow dividing pipe and a spray head; collected rainwater can be recycled, after a period of time, a rotating handle is rotated, a threaded rod can be rotated, a threaded block drives a filter screen to move until the filter screen moves to the position above a collecting water channel, the surface of the filter screen is in an inclined shape, a worker can push out impurities on the filter screen, and manual cleaning can be conducted.

The utility model provides a soft foundation embankment structure with an embankment body space integrated with a municipal function, which relates to the technical field of seawall structures, and comprises a suppression platform I, a seawall complex, a closed earthwork and a suppression platform II which are sequentially arranged from open sea to inland, the seawall complex comprises a pile foundation, a reinforced concrete raft plate arranged on the pile foundation and a reinforced concrete empty box dike body arranged on the reinforced concrete raft plate. A comprehensive pipe gallery space, a parking space, a patrol inspection and maintenance and driving channel and a driving entrance and exit for entering the patrol inspection and maintenance and driving channel are formed in the reinforced concrete empty box embankment body, and a drought gate is arranged at the entrance of the driving entrance and exit. The repression platforms in front of and behind the embankment body are implemented firstly, cement mixing piles and other composite foundation treatment methods are adopted for foundations below the platforms, the negative friction resistance effect, deformation and other adverse effects caused by soft soil foundations on pile foundations are greatly reduced, the mixing piles below the repression platforms on the inner side are densified to form frame supports, and the good shielding effect on later land area soil filling influences is achieved.

The utility model provides a ground fixed track matched with a flood gate plate, the section of the ground fixed track is convex, one side of the ground fixed track is provided with tooth-shaped lines, the ground fixed track is internally provided with holes, and the ground fixed track is provided with bolt holes; a waterproof rubber strip at the bottom of the flood gate plate is omitted, the waterproof function is integrated to the ground fixed track, the ground fixed track can be cut and installed through a common tool, operation is easy, professional equipment is not needed, and tooth-shaped lines of the ground fixed track have low requirements for ground flatness and can cope with different ground conditions.

The invention discloses a subway station flood prevention fence rapid installation device, and belongs to the technical field of flood prevention fence installation, the subway station flood prevention fence rapid installation device comprises a channel, two sides of the channel are fixedly connected with cylinders respectively, each cylinder is slidably connected with a baffle plate, the side wall of the channel is provided with a supporting plate, the supporting plate is used for supporting the baffle plate, and the bottom of the baffle plate is fixedly connected with a sealing rubber plate. Side plates are arranged on the lower portions of the side faces of the baffles, the side plates are rotationally connected with supporting blocks, the supporting blocks are provided with through holes, and a limiting telescopic rod can be inserted between the through holes of the two supporting blocks. The round rod is inserted into the inserting hole formed in the side wall of the channel, the two baffles are in bolting connection, the two baffles rapidly form a whole, after the two split baffles are combined to form the water retaining structure, the water retaining strength can be guaranteed, and the defect that electric control is needed in the prior art is overcome.

This utility model provides a structure for converting a clay core dam into an overflow dam, including a spillway excavated along the top of the clay core dam to the bottom of the downstream side. A spillway bottom slab is poured below the spillway, and side walls are poured on both sides of the spillway bottom slab. The height of the side walls is not lower than that of the clay core dam on both sides. An overflow weir is poured on the spillway bottom slab, and the overflow weir is located in the direction of the top of the clay core dam. The two sides of the overflow weir are connected to the side walls, and the height of the overflow weir is lower than that of the clay core dam on both sides. An anti-seepage wall is embedded in the clay core dam below the overflow weir. The overflow dam is converted on the clay core dam to ensure that the converted clay core dam has a certain discharge capacity, thereby enhancing the flood control capacity of the reservoir.

The utility model provides a portable movable flood prevention barrier, include: support base plate and one end with support base plate connection's flood prevention baffle, support base plate and flood prevention baffle all adopt waterproof flexible material to make, and fill in a plurality of support board material to strengthen structure, flood prevention baffle can rotate along with one end of support base plate connection, a plurality of support frame, support frame includes one end perpendicular connection's vertical support rod and horizontal support rod, under the unfolded state, rotate flood prevention baffle along with one end of support base plate connection to with support base plate vertical position, vertical support rod and horizontal support rod are fixed with flood prevention baffle and support base plate on support board material respectively, under the storage state, fold and press flood prevention baffle on support base plate, the utility model discloses through the flood prevention baffle design of flexible waterproof material filling support board material and the mechanism design of being able to fold storage, solved the flood control facility erection cumbersome difficult of prior art, storage occupies big space etc.

The utility model belongs to the technical field of flood prevention equipment, and discloses a foldable storage flood prevention soft water bag which comprises a water bag body, one end of the water bag body is in threaded connection with a sealing cover, a plurality of pull rings are arranged on the outer surface of the water bag body in a mirror image array mode, and a piece of bearing cloth is arranged on each pull ring. The water bag, the sealing cover, the pull ring and the load-bearing cloth are matched to quickly prevent the flood, water taking is easy due to the fact that the water amount in the flood season is large and wide, the water bag can be filled with water after the sealing cover is taken down, then the sealing cover is sealed, the load-bearing cloth is pressed by counter weights such as stones after the water bag is placed at the flood prevention position, and the flood prevention effect is achieved. When the water bag is used for the flood prevention opening, the water bag is placed in the opening, and if the length of the opening is smaller than that of the water bag, one end of the water bag can be folded, so that the water bag can be suitable for the openings of different sizes, and the device is high in adaptability.

The utility model relates to the technical field of flood prevention facilities, in particular to a telescopic flood prevention water baffle which comprises a foundation baffle, side seats are fixed to the two sides of the foundation baffle, supporting frames which are horizontally distributed are arranged at the upper end and the lower end of the front side of the foundation baffle, and a plurality of telescopic flow deflectors are evenly distributed between the supporting frames. The upper end and the lower end of the flow deflector are connected with the supporting frame through a movable mechanism composed of a protruding column and a connecting block, the outer portion of the inner end of the protruding column is sleeved with an elastic sleeve, and the two ends of the supporting frame are connected with the outer wall of the front side of the basic baffle through elastic pieces. According to the telescopic flood prevention water baffle, the telescopic flow deflector units are additionally arranged, so that the impact force of water flow is effectively dispersed, the stability and the impact resistance of the water baffle are improved, and the flood prevention efficiency is enhanced.

The utility model belongs to the technical field of drainage channels, and particularly relates to an automatic lifting type water retaining device. The automatic lifting type water retaining device comprises a water retaining assembly and a limiting assembly. The water retaining assembly is configured to be capable of floating on the water surface; the water retaining assembly is slidably connected with the limiting assembly, and the limiting assembly is used for being connected to the inner side wall of the drainage channel so that the water retaining assembly can slide back and forth in the depth direction of the drainage channel. The water retaining device can be hidden in a drainage channel without affecting the attractiveness and causing passage obstacles when no water retaining requirement exists, and can rise automatically to block accumulated water on a road when the water retaining requirement exists; road accumulated water is prevented from crossing the drainage channel to reach the human living area or the water amount of the road accumulated water crossing the drainage channel to reach the human living area is reduced.

This invention proposes a method for controlling debris flows in high-altitude landslides based on bottom boundary disturbance, and its application. This method acquires information about the path of the debris flow through mountain gullies and plans and determines the placement points of multi-stage flow-control and disturbance dams at preset intervals along the gullies. The disturbance dams consist of a foundation and a disturbance fluid. The disturbance fluid employs a special multi-segment columnar structure, which can disturb the debris flow through its unique shape. When the debris flow passes through the disturbance dam, its fluidized layer is broken, the bottom material is disturbed and moves upward, leading to internal material collisions, thereby reducing the speed and destructive force of the debris flow. This method can reliably slow down and control debris flows; its key lies in disrupting the formation of the fluidized layer of the debris flow. This method demonstrates high reliability in dealing with high-speed, long-distance debris flow disasters, thus significantly improving the effectiveness of geological disaster prevention and control.

This utility model discloses an L-shaped flood control wall structure, relating to the field of flood control wall technology. The utility model includes a main frame mechanism, which includes a first flood control plate. A second flood control plate is rotatably connected to the back of the first flood control plate via a pin. The utility model employs an unfolding assembly. Specifically, pulling or twisting causes a limiting rod to disengage from the limiting hole. Simultaneously, when the limiting rod moves, it causes the limiting plate to compress a third spring. The third spring, constrained by the inner wall of the second supporting sleeve, contracts and stores force. When the limiting rod disengages from the limiting hole, both the second and first springs generate a certain rebound force, causing the connecting rod and slider to reset. At this point, the second and first flood control plates are at a 90-degree angle. The equipment can be quickly unfolded to promptly block floodwater, buying valuable time for subsequent rescue work and minimizing casualties and property damage. Furthermore, it is foldable for storage, occupying little space and facilitating transportation and storage.