386 results about "Drainage canal" patented technology

The utility model discloses a three-link ecological protection structure for a slope, including a slope, two sides of the slope are provided with fixed beams 1, an irrigation structure is provided on the top of the slope, a plurality of pairs of fixed beams 2 are provided on the slope at equal intervals, a plurality of arc-shaped guide plates are fixedly connected between the fixed beams 1 and 2, a plurality of planting frames are provided between the arc-shaped guide plates, a drainage structure is provided on the opposite side of the fixed beams 1, a filtering structure is provided on the fixed beams 1 and 2, a drainage channel is provided at the bottom of the slope, a crushed stone layer is provided at the bottom of the slope, and a metal grid is fixedly installed on the surface of the crushed stone layer. The advantages of the utility model compared with the existing technology are: the utility model can not only guide rainwater to quickly drain water to avoid rainwater flowing straight down along the slope to form runoff to wash away vegetation and soil, but also collect rainwater and carry out reasonable irrigation to ensure the growth of slope vegetation.

The invention relates to the technical field of foundation pit construction, in particular to a foundation pit dewatering system and a foundation pit dewatering arrangement method.The foundation pit dewatering system comprises a first-stage platform, a second-stage platform and a third-stage platform which are arranged around a foundation pit, and the elevations of the first-stage platform, the second-stage platform and the third-stage platform are sequentially decreased; a plurality of first dewatering deep wells are arranged on the first-stage platform, a plurality of second dewatering deep wells are arranged on the second-stage platform, and a plurality of third dewatering deep wells are arranged on the third-stage platform; drainage ditches and / or water collecting wells are dug in the base of the foundation pit; digging a drainage channel at the top of the foundation pit; sewage in the first precipitation deep well, the second precipitation deep well, the third precipitation deep well, the drainage ditch and / or the water collecting well is discharged into the drainage channel and discharged into the sea through the drainage channel. According to the foundation pit dewatering system, through scientific arrangement of the graded dewatering deep wells and efficient cooperation of drainage facilities, the limitation of a traditional dewatering technology under the tidal influence and complex geological conditions is overcome, the construction safety, reliability and efficiency are improved, and the stability of a foundation pit is enhanced.

The invention discloses an ecological maintenance structure for the geological environment of a slope in a high-altitude freeze-thaw area, and belongs to the field of ecological restoration and water and soil conservation of slopes in high-altitude frozen soil areas. Comprising a side slope platform, a slope surface is integrally formed on the rear surface of the side slope platform, a plurality of drainage channels are integrally formed in the front surface of the slope surface, a plurality of sedimentation tanks are formed in the position, located in front of the slope surface, of the upper surface of the side slope platform, and the drainage channels communicate with the sedimentation tanks correspondingly; the two adjacent sedimentation tanks are communicated with each other; a water pumping mechanism is arranged on the right side of the side slope platform; an irrigation mechanism is arranged on the upper surface of the slope surface; the irrigation mechanism comprises a mounting box; the water flow speed is slowed down through the interval variable angle design of the drainage channel; the surface runoff can be rapidly guided through the 30-degree slope section, and frost heaving caused by accumulated water permeation is avoided; the 5-degree gentle slope section promotes natural sedimentation of silt by reducing the water flow speed, reduces water and soil loss and disperses hydraulic scouring.

The invention discloses a capillary blocking type slope protection system based on recycled aggregate ecological concrete and a construction method of the capillary blocking type slope protection system. The capillary blocking type slope protection system is composed of a side slope, lattice beams, anchor rods, slope bottom drainage pipes, slope body drainage pipes, lattice unit drainage pipes, drainage channels, a recycled aggregate ecological concrete layer, an earthwork recycled fine grain layer and a vegetation layer. The construction method comprises the steps that after the slope body drainage pipes and the anchor rods are embedded in the slope body, drainage channels and slope bottom drainage pipes are constructed at the slope bottom, then lattice beams are poured on the slope surface, and after lattice unit drainage pipes are erected, the recycled aggregate ecological concrete layer, the recycled fine grain layer and the vegetation layer are backfilled layer by layer. The recycled aggregate ecological concrete layer is used as a coarse grain layer in a traditional capillary blocking structure, recycled aggregate ecological concrete is used for bottom layer pouring of a lattice beam transverse framework, and a slope protection system with the excellent anti-seepage slope fixing performance and drainage performance is formed. According to the slope protection system, the toughness of the ecological slope is improved, and green and high-value utilization of engineering earth and stone resources is achieved.

The utility model discloses a drainage device for hydraulic engineering, and relates to the technical field of drainage for hydraulic engineering. The water drainage device for the water conservancy project comprises a water drainage channel and a limiting net, the limiting net is arranged in the water drainage channel, a residue blocking mechanism for conveniently blocking floating objects is arranged in the water drainage channel, and a residue discharging mechanism for conveniently cleaning the floating objects in a river channel is arranged in the water drainage channel. According to the drainage device for the water conservancy project, by arranging a high-pressure spray head, when floating objects in a river channel need to be intercepted and collected, firstly, the floating objects are intercepted through a sliding strip and a blocking net, at the moment, a water suction pump conveys water into a water outlet pipe through a water suction pipe, and water in the water outlet pipe is sprayed out through the high-pressure spray head; the floating objects on the water surface are flushed into the collecting tank while the high-pressure spray head sprays water, the floating objects in the collecting tank are conveniently collected through the limiting net, follow-up fishing and cleaning are facilitated, and the device is convenient for intercepting and collecting the floating objects in the river channel.

The present invention relates to the technical field of thermal power plant wastewater treatment, and in particular to a trash interception apparatus for thermal power plant wastewater treatment. The apparatus comprises a water drainage channel, a barrier mechanism arranged on the water drainage channel, and a sediment collection and holding mechanism arranged on the water drainage channel and on one side of the barrier mechanism. The barrier mechanism comprises a slant trough arranged on the water drainage channel, a built-in rod arranged on the slant trough, a bottom net and a top net that are arranged on the built-in rod, a floating plate arranged on the top net, and an interception assembly arranged at the tail end of the floating plate. The arrangement of the barrier mechanism can effectively cope with water flows at different height in the water drainage channel. The arrangement of the slant trough can effectively cope with water surfaces at different height and can effectively filter out floating matters in the water drainage channel. As the flow rate in the water drainage channel increases, the height of water surface is relatively increased and the position of the built-in rod in the slant trough rises relatively, and vice versa, so that continuous collection of floating debris on the water surface is enabled.

The utility model relates to the technical field of irrigation and water conservancy, and discloses a farmland irrigation and drainage channel which comprises a main drainage channel and secondary drainage channels longitudinally and transversely formed in a farmland and further comprises a base, a water pumping pipe, a water suction pump, a drainage pipe, a telescopic adjusting pipe and an adjusting device. The other end of the water suction pipe extends above the secondary drainage channel, the water suction pump is arranged on the base, and the water suction pump is connected with the water suction pipe; one end of the drainage pipe extends into the main drainage channel, the other end of the drainage pipe extends to the bottom of the secondary drainage channel, the end, extending to the bottom of the secondary drainage channel, of the drainage pipe is connected with the telescopic adjusting pipe, and the adjusting device is used for adjusting the height of a pipe opening in the upper end of the telescopic adjusting pipe. The device has the effect of conveniently irrigating and draining the farmland.

The utility model discloses a drainage mechanism for a water conservancy project. The drainage device comprises a control base, a drainage base, a drainage enhancing assembly arranged on the surface of the drainage base and a drainage control assembly arranged in the drainage base, the drainage control assembly comprises an embedding groove formed in the drainage base, an embedding block is connected into the embedding groove in a matched mode, one end of the embedding block is fixedly connected with a baffle, the baffle is in an L shape, and the drainage enhancing assembly is arranged on the surface of the drainage base. The baffle is movably connected to the interior of the drainage base, the connecting positions are increased through the caulking grooves formed in the two sides of the interior of the drainage channel, the baffle is connected with the caulking grooves through the embedding blocks fixedly connected to the two sides, the baffle is installed in the drainage channel, and the baffle is in an L shape, so that the interior of the drainage channel is conveniently blocked, and a water source in the drainage channel is conveniently controlled; a plurality of wave-shaped columns are mounted at the bottom of the inner side of the drainage channel, so that the turbulence of a water source during drainage is improved, the impact force on the drainage base is reduced, the overall protection performance is improved, and drainage operation is facilitated.

The invention belongs to the field of water conservancy drainage channels, and particularly relates to a water conservancy drainage channel cleaning device which comprises a water tank, a water retaining assembly is arranged at the bottom of the water tank, a motor is fixedly connected to the outer wall of the water tank, and the output end of the motor extends into the water tank and is fixedly connected with a lead screw which is rotationally connected with the water tank. A sliding plate is connected to the outer wall of the lead screw through a lead screw nut pair and slidably connected with the water tank. According to the cleaning device for the water conservancy drainage channel, the two sides of the baffles are arranged to be the slopes, the baffles can be better attached to the inner wall of the drainage channel conveniently, the two baffles are controlled to move downwards to be inserted into the drainage channel, the drainage channel below the water tank is conveniently blocked, part of sewage in the drainage channel is stopped, and it is avoided that sludge flows downstream after being flushed down; the phenomenon that the downstream is aggravated and blocked by sludge is effectively prevented, after water is pumped from a drainage channel below the water tank, the sludge flushing effect of the nozzle can be improved, and the device can be conveniently used at the position where water cannot be supplied.

The surface mine ecological restoration drainage structure comprises a drainage part and reinforcing parts at the two ends of the drainage part, the drainage part comprises a drainage channel and a gate body, the gate body is clamped in the drainage channel, a portal frame is arranged above the drainage channel, and a hoisting assembly on the portal frame is connected with the gate body; the reinforcing part comprises a plurality of reinforcing assemblies which are symmetrically distributed and linearly arranged, each reinforcing assembly comprises a reinforcing base and a supporting plate, the supporting plates are rotationally connected with the reinforcing bases, the reinforcing bases are provided with a plurality of ground nails, and reinforcing nets are arranged between the reinforcing assemblies and the adjacent reinforcing assemblies. The two ends of the reinforcing net are connected with the supporting plates in the two reinforcing assemblies correspondingly. According to the drainage structure, collapse of the surface mine drainage area is effectively prevented through the arrangement of the reinforcing part, and stable operation of a drainage system is guaranteed; and the gate body is matched with the hoisting assembly to control the drainage flow, so that the drainage efficiency and safety in the ecological restoration process of the surface mine are improved.

The invention provides a drainage channel structure of a geological disaster control project and a construction method of the drainage channel structure, and relates to the technical field of drainage channels. The drainage channel structure of the geological disaster control project comprises an excavated U-shaped drainage channel body, a channel body supporting structure is arranged in the drainage channel body, and the channel body supporting structure comprises a first supporting layer and a second supporting layer arranged on the inner side of the first supporting layer; the first supporting layer comprises U-shaped supporting walls and a U-shaped concrete platform which are matched with the U-shaped drainage channel body, the U-shaped supporting walls are embedded in supporting wall setting cavities so as to form the first supporting layer with the U-shaped concrete platform, and the U-shaped supporting walls are formed by filling stone cages with broken stones; the second supporting layer is a concrete layer, and waterproof geotechnical cloth is arranged between the second supporting layer and the first supporting layer. The concrete layer of the second layer is not prone to cracking or damage, the canal body supporting structure is more stable, and the service life is longer.

The invention relates to the technical field of corn planting, and discloses a planting method for reducing waterlogging damage of corn, which comprises the following steps: S1, construction of a drainage channel: reasonably planning and constructing the drainage channel to ensure that redundant rainfall is timely drained; s2, soil preparation; s21, deep ploughing: deep ploughing can break the plow pan, improve the soil structure and promote the root development; a high-ridge double-row planting mode is combined with an effective drainage channel, the risk that roots are soaked in water for a long time can be effectively reduced, root rot and other related diseases caused by waterlogging are reduced, healthy root systems are the basis for guaranteeing normal water and nutrient absorption of crops and are directly related to the final yield, the plow pan is broken through deep ploughing, and the yield of crops is increased. The soil permeability is improved, the root development is promoted, and the method has the characteristics of high practicability and high planting efficiency.

The utility model relates to the technical field of concrete face dam protection, and discloses a concrete face dam protection structure which comprises a concrete face dam body, and the concrete face dam body is sequentially provided with a side slope, a buffering slope and an upstream slope from top to bottom. A reinforcing assembly; the reinforcing assembly is arranged on the side slope and used for preventing side slope chippings from falling off. A buffer assembly; the buffering assembly is arranged on the surface of the upstream slope and used for protecting the upstream slope. The reinforcing assembly comprises fixing plates, the fixing plates are arranged on the two sides of the side slope, reinforcing frames are arranged on the fixing plates, the reinforcing frames are connected to the fixing plates through bolts in a threaded mode, a polystyrene foam plate adheres to the surface of the side slope, four sets of drainage grooves are formed in the surface of the side slope, and drainage channels are formed in the buffer slope. Through the reinforcing assembly, deformation is prevented, and broken stones are prevented from falling off after concrete cracks.

The utility model relates to the technical field of drainage channel assembly, in particular to a prefabricated drainage channel assembly auxiliary supporting device which comprises a plate trailer, a drainage channel body is arranged at the top of the plate trailer, a motor is installed on the left side of the plate trailer, four sliding grooves a are formed in the plate trailer, and moving blocks are installed on the inner walls of the sliding grooves a. Springs are installed on the left side and the right side of the moving block, a connecting block is hinged to the top of the moving block, connecting frames are hinged to the top end of the connecting block, and supporting plates are installed on the tops of the connecting frames on the left side and the right side. The supporting device has the advantages that the tray is pushed through the spring, the pressure on the supporting device when the drainage channel is placed downwards can be effectively reduced, the using effect of the supporting device is improved, the service life of the supporting device is prolonged, workers can conveniently assemble the drainage channels one by one, the assembling process is simplified, and the working efficiency is improved; therefore, workers can more easily complete the assembly work of the drainage channel.

The invention relates to the technical field of agricultural irrigation, in particular to a farmland irrigation drainage dike which comprises a drainage channel, dikes are installed on the inner bottom wall of the drainage channel in the water flow direction at intervals, the height of the dikes is 10 centimeters higher than the height of a water inlet of the drainage channel, drainage pipes are installed in the dikes in a penetrating mode, and gates are installed on the drainage channel. A filtering part is arranged at a water inlet of the drainage channel; the drainage channel is divided into a plurality of independent irrigation units through the arrangement of the multiple dams, each dam is 10 centimeters higher than the water inlet, when the water level reaches the height of the dam, redundant water automatically overflows, the water amount can be flexibly adjusted according to the water requirement of different crops, it is ensured that water enters each land evenly, and uneven drought and flood are avoided.

The utility model discloses a plastic runway structure capable of rapidly draining water, which comprises an annular runway and a drainage channel, a sealing plate is arranged on the drainage channel, the bottom side of the annular runway is in contact with a concrete layer, the upper side of the concrete layer is uniformly provided with recesses, and the recesses incline from the outer side of the annular runway to one side of the drainage channel. Through holes are evenly formed in the baffle, the concrete layer is located in the pit and makes contact with a metal cushion plate, the metal cushion plate is provided with an anti-rust layer and fixedly connected with a cushion plate through bolts, the upper end of the cushion plate is fixedly connected with a support, and the support is fixedly connected with the baffle. The pit is arranged on the upper side of the concrete layer, the baffle is installed on the upper side of the pit to provide support, meanwhile, rainwater leaks out conveniently through the through holes and is guided to one side of the drainage channel, and the drainage channel is arranged in the pit. Therefore, the leakage problem of the plastic track can be solved.

The utility model provides a landscape landscaping slope drainage structure, which relates to the field of landscaping slope drainage, and comprises a slope drainage channel and a landscaping slope body, the slope drainage channel is embedded and laid on the surface of the landscaping slope body, and a channel surface cover plate covers the upper surface of the slope drainage channel. A vertical baffle is fixed to the lower edge of the outer surface of the channel face cover plate, a porous filter screen and an impurity inlet notch are formed in the surface of the channel face cover plate, a filter screen frame is clamped to the inner side of the slope drainage channel through a supporting plate, and the filter screen frame is distributed and located at the lower end of the impurity inlet notch. The side end of the slope drainage channel is connected with an underground drainage pipe through a connecting groove block. The utility model solves the problem that in the prior art, drainage structures such as drainage channels at the bottom of the greening slope surface are obvious and affect the landscaping aesthetic property.

This utility model discloses a drainage structure for a self-service car wash machine, belonging to the technical field of self-service car wash machines. It includes a drainage channel with an inclined base on one side. The lower inclined sidewall of the base is connected to the drainage channel. A grid plate is horizontally arranged on the top surface of the base. A filter plate is inclinedly arranged inside the drainage channel. Multiple movable components are movably arranged on the top of the drainage channel. This self-service car wash machine drainage structure uses two hinged movable plates, combined with hooks and flanges, to achieve an n-shaped fold. Multiple movable components enable multiple movable plates to achieve an m-shaped fold, allowing for flexible cleaning of the inclined filter plate. Compared to existing devices, this avoids the problem of having to completely lift the cover plate on the drainage channel when cleaning, thus improving cleaning flexibility and efficiency.

1. Name of the design product: water channel (water conservancy and hydropower). 2. Use of the design product: the design product is used for drainage channel. 3. Design points of the design product: in shape. 4. Picture or photo that best indicates the design points: perspective view 1.

This utility model relates to the field of concrete drainage ditches and discloses a slipform track structure for cast-in-place concrete drainage ditches. The structure includes an inner plate, an outer plate, and a transverse sleeve. Both the inner and outer plates are L-shaped and interlock. Sliding rods are fixedly connected to the inner sides of both the inner and outer plates, and rod holes are formed on the edges of both plates. These rod holes correspond to the sliding rods and are slidably engaged with them. Furthermore, sliders are fixedly connected to the upper corners of the same surfaces of both the inner and outer plates. This utility model, by designing the drainage ditch slipform track structure to allow adjustment of the width and side slope angle of the formed drainage ditch, avoids the limitations of existing drainage ditch slipform track structures, which use fixed templates and cannot freely adjust the width and side slope angle of the formed drainage ditch. This allows for the selection of more suitable specifications based on the changing conditions of the construction site.

The field irrigation and drainage gate comprises a gate plate installed in a drainage channel, the gate plate ascends and descends through a height adjusting mechanism, limiting blocks are installed on the inner walls of the two sides of the drainage channel, and the gate plate is arranged between the two limiting blocks in an inserted mode. A composite protection plate is detachably installed on the side, close to the water source, of the gate plate, and the bottom and the two sides of the composite protection plate are in sealed connection with the bottom face and the inner walls of the two sides of the drainage channel correspondingly. The detachable composite protection plate is installed on the side, close to the water source, of the flashboard, water in the drainage channel is blocked through sealing of the composite protection plate and the side wall of the drainage channel, the water and the flashboard are blocked through the composite protection plate, the flashboard is prevented from being damaged due to corrosion of substances in the water, the service life of the flashboard is prolonged, direct replacement of the flashboard is avoided, and cost is reduced. And by utilizing the composite protection function of the composite protection plate, the service life of the composite protection plate can be prolonged, so that the maintenance cost is reduced, and the market prospect is wide.

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.

The utility model discloses an energy-saving roof of a green building, which comprises a support frame, a first drainage channel and a second drainage channel, the roof main body is arranged at the upper end of the supporting frame, a plurality of first drainage grooves are formed in the upper end of the roof main body, and the first drainage channels are correspondingly arranged at the lower ends of the first drainage grooves; the drainage guide column is arranged at the lower end of the supporting frame, a first guide hole is formed in the upper end of the drainage guide column, a first drainage hole is formed in one end of the first drainage channel, the first guide hole is matched with the first drainage hole, and a filtering mechanism is arranged at the lower end of the drainage guide column. According to the energy-saving roof of the green building, rainwater can be guided into the first drainage channel through the first drainage groove in rainy days, is collected through the first drainage channel and flows into the drainage guide column, impurities such as fallen leaves can be filtered out through the first filter plate and the first filter screen, and it is guaranteed that drainage is not prone to blockage.

The invention discloses an anti-blocking integrated V-shaped filter tank convenient to clean and maintain, and relates to the technical field of V-shaped filter tanks. Two filtering mechanisms are arranged at the bottom of the filtering tank and located at the bottom of the V-shaped groove, each filtering mechanism comprises an adsorption filtering layer, a bottom plate is arranged at the bottom of each adsorption filtering layer, a filtering hole plate is arranged at the right end of each adsorption filtering layer, a drainage channel is formed in the bottom of the filtering tank and located at the bottom of each filtering hole plate, and a transmission pump is arranged at the bottom of each drainage channel; the transmission pump is connected with the clear water reservoir through a pipeline; two groups of scraping mechanisms are arranged at the top of the filter tank, the scraping mechanisms are located at the top of the V-shaped groove, each scraping mechanism comprises a reciprocating threaded shaft, a threaded sleeve is arranged on the outer side of each reciprocating threaded shaft, and a scraping plate is connected to the bottom of each threaded sleeve. The scraping mechanism is arranged at the top of the V-shaped groove, and the threaded sleeve and the scraping plate can be driven to move through the reciprocating threaded shaft, so that the scraping plate pushes impurities at the top of the V-shaped groove to the edge, and blockage caused by the fact that the impurities block water leakage holes of the V-shaped groove is avoided.

The invention relates to the technical field of ecological restoration, and provides an open-pit coal mine ecological restoration device and method designed for polder ridges and water interception and drainage. The open-pit coal mine ecological restoration device comprises a carrier used for hanging an ecological restoration operation machine tool, and the carrier is provided with a frame used for crossing over the polder ridges / water interception and drainage channels; the frame is symmetrically provided with a plurality of ground supporting assemblies used for being supported on the ground to enable the carrier to rise. The ecological restoration device further comprises a span moving assembly used for driving the rising carrier to move along the frame to cross over a polder ridge or an interception and drainage channel. When a user needs to cross over the polder ridge / interception drainage channel, the position of the carrier is adjusted firstly so that the frame can cross over the polder ridge / interception drainage channel, then the carrier is lifted by a certain height on the supporting ground through the ground supporting assembly, and then the lifted carrier is driven by the span moving assembly to move along the frame so as to cross over the polder ridge / interception drainage channel. And finally, the ground supporting assembly is reset, so that the carrier wheel body touches the ground, and the polder ridge / interception and drainage channel crossing action is completed.

The utility model discloses a drainage channel dredging device for municipal engineering, which relates to the technical field of drainage channel dredging for municipal engineering and comprises a moving main body, one end of the moving main body is fixedly connected with a cleaning shovel, one side of the cleaning shovel is fixedly connected with a fixed collecting plate, and the other side of the cleaning shovel is rotatably connected with a fixed rod. The outer side of the fixing rod is fixedly connected with an adjusting collecting plate, the two ends of the fixing rod are each sleeved with a coil spring, one end of each coil spring is fixedly connected to the cleaning shovel, the other end of each coil spring is fixedly connected to the adjusting collecting plate, and one side of the upper end of the moving body is fixedly connected with a connecting support. One side of the fixed collecting plate is attached to one side of the drainage channel, the rotary adjusting collecting plate and the fixed collecting plate are attached to the other side of the drainage channel, and then the electric telescopic rod is controlled to be adjusted according to the size of the drainage channel so that the two sets of cleaning roller brushes can be close to the side wall of the drainage channel.

The utility model discloses an efficient drainage plastic runway structure, which relates to the field of plastic runway structures, and comprises a base and a drainage channel, the top of the base is paved with a light assembly elastic layer, the top of the light assembly elastic layer is paved with a particle wear-resistant surface layer, and the interior of the base is embedded with a flow guide assembly. According to the plastic track structure capable of efficiently draining water, through the arranged seepage net, rainwater can automatically seep into the hollow flow guide plate when sequentially penetrating through the light assembled elastic layer and the particle wear-resistant surface layer to flow to the upper surface of the hollow flow guide plate, and then the water is automatically guided into the water inlet and drainage channel through cooperation of the water drainage pipe; and through the arranged one-way valve, water flow gathered in the drainage channel cannot flow back into the hollow flow guide plate, so that the purpose of efficient drainage is achieved, and the situation that training of athletes is disturbed due to the water accumulation phenomenon when a plastic track structure encounters heavy rain or continuous rainfall weather is avoided.

The invention discloses a soil fixation method suitable for sandy soil geological conditions, and belongs to the technical field of soil conservation. Comprising the steps that S1, natural gullies formed by sandy soil are classified according to the depth, and the natural gullies are divided into three types with the depth smaller than or equal to 0.1 m, the depth larger than 0.1 m and smaller than or equal to 0.5 m and the depth larger than 0.5 m; s2, for the gully with the depth larger than 0.5 m, a drainage channel is formed through excavation, a plurality of sand blocking structures are installed in the drainage channel, the depth of the sand blocking structures is lower than that of the drainage channel, bottom plates are installed on the upstream and the downstream of the sand blocking structures, meanwhile, side walls are installed on the vertical walls on the two sides of the drainage channel, and the depth of the side walls is lower than that of the drainage channel. Through the modes of arranging the sand blocking structure, arranging the bottom plate, the geotechnical cloth and the geocell, backfilling the backfill soil and the like, a drainage channel of an original gully is reserved, the soil is kept at the original position, the situation that a new gully is formed due to repeated flushing is avoided, a stable and effective drainage system is formed, and further expansion of the gully is effectively controlled.

The utility model discloses an ecological protection slope for a water conservancy building, which relates to the technical field of water conservancy projects and comprises a side slope, a drainage channel, a stop block, a push plate, a water inlet pipe, a water outlet pipe, a water inlet pipe, a water outlet pipe and a water outlet pipe, the push plate is rotationally connected to the threaded sleeve, the threaded sleeve is driven by a lead screw transmission mechanism, the two sides of the bottom of the push plate are clamped in the gap between the check block and the inner bottom of the drainage channel, the bow-shaped spring is fixed to the bottom of the threaded sleeve, and the end, away from the threaded sleeve, of the bow-shaped spring is connected to the push plate; the end, away from the threaded sleeve, of the bow-shaped spring is connected to the push plate. The gap area is arranged and matched with the bow-shaped spring, so that the push plate can automatically turn over to leave the bottom wall during resetting, the situation that the cleaned sludge is pushed into the drainage channel again due to reverse movement is avoided, and the pollution discharge stability and the continuous operation efficiency of the drainage system are enhanced.

This invention discloses a dredging device and system. The dredging device includes a first vehicle body, a shovel assembly, a dispersing assembly, a suction component, and a sweeping assembly. The first vehicle body travels within a drainage ditch and has a cavity with an opening at one end. The shovel assembly has a shovel body, one end of which is connected to the opening in the vehicle body, and the other end of which abuts against the bottom surface of the drainage ditch. The shovel assembly is used to scoop up silt from the drainage ditch so that the scooped-up silt enters the cavity of the first vehicle body through the opening. The dispersing assembly is located within the cavity and is used to break up the silt within the cavity. The suction component is connected to the cavity and is connected to a pumping device to pump out the silt from the cavity. The sweeping assembly is located outside the first vehicle body and is used to sweep the drainage ditch. The dredging device disclosed in this invention can improve the silt removal efficiency.