3171results about "Artificial water canals" patented technology

The invention relates to the technical field of closed-loop control, in particular to an irrigation area water gate automatic adjusting system based on fuzzy logic control, which comprises a load monitoring module, a gate parameter optimization module, an environment response adjusting module, a water level threshold setting module, a flow prediction module and a gate feedback control module. According to the method, accurate calculation of the inter-regional load difference is performed by integrating the water resource flow and pressure data, the irrigation efficiency and the response speed are remarkably improved, water requirements can be accurately matched through refined regional load analysis, water resource waste is avoided, and the adaptability of the system to environmental changes is enhanced; environment variables are monitored in real time, gate operation is adjusted, the optimal water level is maintained under the constantly changing condition, agricultural requirements and sustainable utilization of water resources are ensured, predictive analysis of flow data enhances preventive regulation and control of the system, the system can respond to future requirement changes in advance, resource allocation is optimized, and the system is suitable for large-scale popularization and application. The water resource utilization rate and the automation level of irrigation area management are effectively improved.

The invention belongs to the technical field of water conservancy projects, and particularly discloses a water conservancy irrigation gate device and a using method thereof.The water conservancy irrigation gate device comprises a frame installed in a water channel, a gate is slidably connected into the frame, and a filter plate is fixed to the inner wall of the bottom of the frame and used for filtering impurities and garbage in water; the top of the filter plate extends into the gate in a sliding manner; according to the invention, in the up-and-down movement process of the gate, excessive silt can be prevented from entering the collecting groove, silt and sludge in the triangular grooves and the collecting groove can be pumped out and discharged, the sealing performance between the gate and the frame body is ensured, and in addition, the sealing performance between the gate and the frame body is ensured. And the triangular strip, the filter plate and the inclined surface scraper blade are matched to filter sundries and garbage in the water flow.

Disclosed in the present invention are an ecological reservoir communicating water gate allowing for efficient water resource utilization, and a scheduling method using same. The water gate communicates a main reservoir and an ecological reservoir; a diversion open channel extending towards the ecological reservoir is arranged on the upstream of a gate chamber; a drainage open channel extending towards the main reservoir is arranged on the downstream of the gate chamber; splayed walls having arcs on two sides changing outwards gradually are arranged at the tail ends of the diversion open channel and the drainage open channel; the centerlines of the diversion open channel and the drainage open channel are bent in an obtuse angle with a circular arc transition. The scheduling method is a water gate operation scheduling scheme, which is as follows: a water gate is usually closed during normal times; when it rains, if the water level in an ecological reservoir rises to a height above water levels corresponding to floods with a return period of once every 50 years or greater, the water gate is opened; after the rain, when the water level in the ecological reservoir drops to a height below the water levels corresponding to floods with a return period of once every 50 years or greater, the water gate is closed. The present invention achieves the functions of rainwater purification and flood discharge.

The utility model provides an intercepting and purifying device suitable for river-entering farmland ditches, which comprises an intercepting structure and a purifying structure, the intercepting structure comprises a sludge deposition and grit chamber and a steel grating, a denitrification device containing denitrifying phosphorus-accumulating bacteria and adsorptive mineral materials is placed in the sludge deposition and grit chamber, and the steel grating is arranged in the sludge deposition and grit chamber. A sand setting inlet and a sand setting outlet are formed in the two opposite sides of the steel grating respectively, the steel grating is arranged at the sand setting outlet, and the sand setting inlet is used for being communicated with an ecological ditch; the purification structure comprises an ecological purification pond and a gabion packing bed, the ecological purification pond is provided with a purification inlet and a purification outlet, gabions are arranged at the purification inlet and the purification outlet, the ecological purification pond is tightly attached to the sludge deposition and grit chamber, the purification inlet is opposite to and communicated with the grit inlet, and the gabion packing bed is arranged in the sludge deposition and grit chamber. And the gabion packing bed is arranged in the ecological purification pond.

The invention belongs to the technical field of water conservancy gates, and discloses a water conservancy project flood prevention gate, method and system.The water conservancy project flood prevention gate comprises two barrier gate cement foundations, an anti-blocking mechanism and a cleaning mechanism are arranged on the two barrier gate cement foundations, and the anti-blocking mechanism comprises door bodies arranged on the sides, close to each other, of the two barrier gate cement foundations; an electric gate is slidably mounted on the inner wall of the front face of the gate body, anti-blocking assemblies are arranged at the tops of the two barrier gate cement foundations correspondingly, the electric gate is driven by a motor to ascend and descend, and automatic reciprocating motion of a cleaning strip on a sliding frame is achieved through meshing transmission of a tooth groove and a gear and the combined design of a connecting rod mechanism; according to the filter screen cleaning device, impurities attached to the filter screen are effectively removed, the filter screen is prevented from being blocked, the cleaning efficiency and the automation degree are greatly improved, frequent manual intervention is not needed, the labor intensity is reduced, meanwhile, potential risks caused by blocking of the filter screen are reduced, and it is guaranteed that water flows smoothly.

The invention discloses a variable-cross-section stacked box rigid frame aqueduct, a cantilever hanging basket and a prestress tensioning method in the field of prestressed concrete aqueducts, the transverse section of a water passing groove is a U-shaped section, and the U-shaped section of the water passing groove is far superior to a rectangular section in the aspects of water delivery flow conditions and flow passing capacity; a prestress continuous rigid frame structure form of a U-shaped water passing upper tank with a variable cross-section rectangular lower tank stacked upwards and a guide groove unified cross section and a two-system four-way prestress system are arranged, the concrete stress of the upstream face of the U-shaped water passing groove can be accurately and effectively controlled to be kept in a uniform compression state with a certain numerical value, and the anti-seepage and durability functions of the aqueduct are ensured. According to the tensioning method, the vertical steel beams and the U-shaped steel beams are partially tensioned firstly, so that the aqueduct web has certain vertical pressure stress, then longitudinal prestress is tensioned, the effect of the vertical steel beams and the U-shaped steel beams is prevented from being weakened by the longitudinal prestress, and pressure stress reserve of the upstream face of the U-shaped groove is guaranteed; the pouring hanging basket prevents the formwork from floating or shifting in the pouring process of the variable-thickness middle partition plate.

The invention provides equipment and method for repairing a concrete lining plate in a running water state, and the equipment comprises a truss which is arranged in the depth direction of a canal surface, one end of the truss is a water inlet end, the other end of the truss is a water outlet end, the truss is provided with a sliding frame in a sliding manner, and the sliding frame moves back and forth on the truss in the direction of the water outlet end or the direction of the water inlet end; the telescopic unit is provided with a mounting end and a working end, the mounting end is slidably arranged at the bottom end of the truss so as to slide along the width of the truss, and the working end is provided with a rotating part; and the operation module comprises a cutting unit and a dismounting and mounting unit, and the cutting unit and the dismounting and mounting unit are selectively arranged on the rotating part according to the operation content. The combination of the telescopic unit and the rotating part is matched with the cutting unit and the dismounting and mounting unit to sequentially cut, separate, extract and convey the damaged lining plate and mount the new lining plate, divers do not need to enter water for operation, and compared with cofferdam construction, the device can be directly deployed at the position needing to be repaired, so that the preparatory work process is simplified.

The invention provides a water conservancy project sand blocking and discharging device, and mainly relates to the field of water conservancy project drainage equipment. A water conservancy project sand blocking and discharging device comprises a desilting basin, a water inlet channel, a drainage channel, a flow dividing sand blocking assembly, a sand discharging assembly and a trash blocking grating assembly, the water inlet channel is fixedly installed on one side of the desilting basin, the drainage channel is fixedly installed on the side, close to the water inlet channel, of the front face of the desilting basin, and the flow dividing sand blocking assembly is arranged in the desilting basin; the lower portion of the drainage channel is provided with a desilting assembly communicated with the interior of the desilting basin, and the water inlet channel is internally provided with a trash holding grating assembly. The device disclosed by the invention has the beneficial effects that when the device is used for shunting silt in river water, the river water is introduced into the sedimentation tank through the water inlet channel, so that the river water generates vortex in the sedimentation tank to be beneficial to gathering heavier gravels to the center, and the sediment in the river water is accelerated.

The invention discloses a slope protection device and method for rock mass collapse, and belongs to the field of slope supporting. A slope protection device for rock mass collapse comprises a concrete frame and further comprises a bottom base, a drainage structure, a first water baffle, a top end, a cleaning structure and a buffer structure, the bottom base is fixed to the bottom end of the concrete frame, the first water baffle is arranged on one side of the bottom end of the bottom base, the top end is arranged on one side of the drainage structure, and the cleaning structure is arranged in the drainage structure. The bracket is arranged on one side of the concrete frame; a driving motor drives a chain to move through a second chain wheel, so that a scraping plate scrapes deposits to move and leave the interior of a drainage channel, meanwhile, a spiral impeller pushes the deposits on the two sides to move to the bottom of the scraping plate, the drainage channel cleaning function is achieved, and the interior of the drainage channel is kept unblocked by automatically cleaning the drainage channel; the bottom of the device is not prone to being soaked in rainwater for a long time, and the defect that a drainage channel is prone to being blocked in the prior art is overcome.

The present invention relates to the technical field of water surface waste purification and discloses a waste purification device for the water inlet of a hydropower plant, the structure of which comprises: a frame body, a crushing unit, a conveying unit, and a drive unit, wherein the frame body is adapted to be attached to the water inlet of the hydropower plant; wherein the crushing unit is arranged on the frame body, and the crushing unit comprises a crushing roller and a plurality of cutting blades; wherein the conveying unit comprises a conveyor;wherein the drive unit comprises a drive element and a first transmission element, wherein the drive element is connected to the crushing roller and configured to drive the crushing roller to rotate, wherein the first transmission element is connected between the crushing roller and the conveyor and configured to drive the conveyor. The crushing unit is capable of crushing the waste at the water inlet, the crushed waste can be transported by the conveyor unit to the waste receiving point, and the drive unit is capable of driving the crushing unit and the conveyor unit simultaneously. The waste cleaning device for the water inlet of a hydropower plant according to the embodiments of the present invention can process the waste at the water inlet to prevent damage to the output of the hydropower plant and loss of electrical energy.

The invention belongs to the technical field of building materials, and particularly relates to a flexible concrete blanket for side ditch protection and a preparation method thereof.The flexible concrete blanket comprises a permeable fabric located on the upper layer, a waterproof fabric located on the lower layer, and a cement solid-phase filler and flat fibers or fabrics located between the permeable fabric and the waterproof fabric; the permeable fabric and the waterproof fabric are connected through a plurality of sewing fibers which are arranged at intervals. According to the invention, by adding the flat fiber or the fabric into the cement solid-phase filler, on one hand, the flat fiber or the fabric can be sewed and fixed under the action of the sewed fiber, the binding and fixing effects on the cement solid-phase filler are enhanced, and on the other hand, the sewed density can be reduced, so that the flexibility of the concrete blanket is improved; the flat fiber or fabric can be used as a reinforcing phase to improve the strength of the concrete blanket.

The invention relates to the technical field of data processing, in particular to a rice field gate anti-clogging intelligent monitoring control method, which comprises the following steps of: acquiring multi-dimensional monitoring data of a gate at each monitoring moment in real time, and forming a multi-dimensional monitoring data sequence by the multi-dimensional monitoring data of the gate at each monitoring moment in each operation process; one gate operation process corresponds to one multi-dimensional monitoring data sequence; for any gate operation process, obtaining an optimized gate clogging coefficient of any gate operation process according to the multi-dimensional monitoring data sequence corresponding to any gate operation process; the method comprises the steps of obtaining an optimized gate clogging coefficient of each gate operation process, obtaining a gate clogging trend index by using the optimized gate clogging coefficient of each gate operation process, and carrying out gate clogging prevention intelligent monitoring control according to the optimized gate clogging coefficient and the gate clogging trend index of the current gate operation process. And early-stage, quantitative and trend monitoring of the clogging state of the gate is realized.

The invention discloses a method for preventing and controlling salt water invasion of an aquifer at the bottom of an estuary river channel by building an impermeable layer, which comprises the following steps of: acquiring hydrogeological data of a prevention and control area, and determining the size of the area to be prevented and controlled according to an engineering expected effect; performing curing treatment on the foundation bed in the prevention and treatment area by using a curing agent material; leveling treatment is conducted on the curing area; laying an impermeable layer on the surface of the solidified foundation bed; smoothing the connecting area of the impermeable layer and the surrounding foundation bed; and laying a protective layer on the surface of the impermeable layer. Compared with an existing seawater invasion prevention and control method, the method is relatively simple in construction arrangement, low in investment cost and low in later maintenance cost, salt water can be effectively prevented from invading the coastal underground aquifer from the bottom of the river channel, and the method has a good application prospect.

The utility model provides a concrete lining machine for water conservancy construction. The concrete lining machine comprises a supporting mechanism and a trowelling mechanism. The supporting mechanism comprises a supporting frame, and electric guide rails are symmetrically installed on one side of the supporting frame. The trowelling mechanism comprises a movable frame and a scraping plate, the movable frame is arranged on one side of the supporting frame, the movable end of the electric guide rail is fixedly connected with the movable frame, second electric push rods are symmetrically installed on one side of the movable frame, and piston rods of the second electric push rods are fixedly connected with connecting plates. The fixing plate penetrates through the first inserting hole, the inserting plate is inserted into the fixing plate, and the inserting plate and the connecting plate are fixed, so that the scraping plate and the connecting plate are assembled into a whole, the scraping plate is conveniently replaced according to construction requirements, the scraping plate is matched with a construction scene, the supporting plate is arranged to support the scraping plate, the stability of the scraping plate is enhanced, and the scraping plate is convenient to use. The use length of the supporting plate can be adjusted so that the supporting plate can adapt to scrapers of different sizes.

The invention provides a water conservancy irrigation canal with a sundry cleaning structure, and relates to the field of water conservancy irrigation canals, and the water conservancy irrigation canal comprises an irrigation canal main body, a leakage-proof water receiving film, a limiting guide plate, a sliding bearing plate, a power transmission rotating shaft, a position limiting push plate, a sliding mounting seat and a water leakage warning plate; the leakage-proof water receiving film is inserted into the inner side of the irrigation canal main body; the limiting guide plates are fixedly connected to the left and right sides of the irrigation canal main body; the sliding bearing plate is slidably connected to the inner side of the limiting guide plate. The power transmission rotating shafts are rotationally connected to the left and right sides of the irrigation canal body. The position limiting push plate is fixedly connected to the outer side of the power transmission rotating shaft; the sliding mounting base is slidably connected to the upper portion of the irrigation canal body. The water leakage warning plate is fixedly connected to the upper part of the sliding mounting seat; according to the invention, the inconvenience of regular inspection of the water conservancy irrigation canal is avoided, a lot of time is saved, and the inspection efficiency is improved; the problem that the inspection efficiency of the water conservancy irrigation canal is affected due to the fact that the water conservancy irrigation canal needs to be inspected for a long time is solved.

The invention belongs to the technical field of water conservancy construction, and particularly relates to a channel construction device for a water conservancy project, the channel construction device comprises a formwork assembly, a supporting frame and a slurry guide device, the slurry guide device comprises two slurry guide plates hinged to each other, the gravity principle is utilized, concrete slurry can naturally flow to cavities in the two sides, the requirement for manual intervention is greatly reduced, and the construction efficiency is improved. Therefore, the pouring efficiency is improved. The upper ends of the two slurry guide plates are provided with comb-tooth-shaped structures which are mutually crossed to form a material receiving groove, so that concrete slurry can be effectively received and guided, certain dispersion and uniform distribution effects can be achieved in the slurry flowing process, the problem of local accumulation or insufficient supply is effectively avoided, and the uniformity of concrete pouring is improved; in addition, the two slurry guide plates are hinged, on one hand, the span of the slurry guide device can be flexibly adjusted according to the width of the channel, and on the other hand, the size of the slurry guide device can be conveniently reduced in the transportation process, the transportation cost is reduced, and the flexibility is improved.

The invention discloses a novel flexible ecological drainage ditch structure and a construction method thereof, belongs to the technical field of drainage ditch construction, and solves the problems of serious deformation and cracking of a traditional concrete drainage ditch. The structure specifically comprises an anti-corrosion layer, a drainage layer and an anti-seepage layer. The seepage prevention layer is arranged at the bottom of the drainage ditch, the drainage layer is laid on the seepage prevention layer, and the anti-corrosion layer is laid on the drainage layer. According to the drainage ditch, the innovative design of combining the anti-corrosion layer, the drainage layer and the anti-seepage layer is adopted, so that a lower seepage body is effectively drained, the ditch body strength is improved, the basic requirements of confluence, quick drainage and seepage prevention of the drainage ditch are met, and the overall shear resistance and erosion resistance of the drainage ditch are improved; the construction method is suitable for construction of loose accumulation body slopes such as slide slag accumulation body slopes, waste slag accumulation bodies and mine dumping sites; the method has the advantages of being high in plasticity, high in terrain adaptability, high in environment flexibility, good in structure flexibility and the like.

The utility model relates to a novel channel joint cutter, and belongs to the technical field of concrete construction equipment. Comprising a walking frame with walking wheels and a joint cutting device arranged on the walking frame. The joint cutting device comprises a hanger rail, a rotating seat plate arranged on the hanger rail in a sleeving mode, a rotating driving motor driving the hanger rail to rotate, a linear driving motor driving the hanger rail to linearly move and a joint cutting assembly fixedly arranged at the lower end of the hanger rail. The rotary driving motor and the linear driving motor are fixedly arranged on the rotary seat plate; the joint cutting device is installed on the walking frame through a rotary supporting piece, a fluted disc is further fixedly arranged on the walking frame, and a rotary driving motor and the fluted disc are in transmission through a gear pair. A linear toothed rail is arranged on the hanger rail, and the linear driving motor and the linear toothed rail are in transmission through a gear pair. The concrete canal expansion joint cutting device is suitable for cutting expansion joints of a concrete canal of a U-shaped structure. And joint cutting construction can be conducted after concrete of the water channel is solidified, the mechanization degree is high, and the construction efficiency is high.

The invention relates to the technical field of water body trash removal, in particular to a movable vertical scraper bucket trash remover which comprises a trash rack part installed in a flow channel and walking parts installed on the two sides of an opening in the upper end of the flow channel, and a rack with a cab fixed inside is movably assembled at the upper ends of the walking parts. According to the movable type vertical scraper bucket trash remover, the bucket component designed through an electric control overturning structure is adopted, overturning can be conducted at the blocking position of the trash rack, lifting adjustment is convenient, and resistance is reduced; the cutting mechanism can be controlled to turn over to be close to the trash rack component through the upwards-turned bucket component, the cutting and separating effect is improved, and magazine separation is conveniently controlled; and a detachable slag collecting box is installed on the outer side of the transverse lifting frame, separated impurities can be separated and collected, and lifting and cleaning in the later period are facilitated.

The invention provides a hydraulic automatic fishway device, and relates to the technical field of hydraulic engineering, the hydraulic automatic fishway device comprises an arc fishway track, a multifunctional structure is rotatably mounted on the outer side of the arc fishway track, the multifunctional structure comprises a synchronous belt, a plurality of fish collecting plates are arranged on the surface of the synchronous belt, and each fish collecting plate is clamped with the synchronous belt; a fish collecting groove is formed in each fish collecting plate, a fish luring warm-color lamp strip is arranged in each fish collecting groove, through a multifunctional structure, when water flow impacts the water turbine from bottom to top, the water turbine rotates under the radial force of the water flow, so that radial force is generated on the fixing rod to rotate in the fixing frame, and meanwhile, the water flow impacts the water turbine through the water flow; the rotation of the fixing rod enables the driving bevel gear to rotate and to be engaged with the driven bevel gear, so that the driven bevel gear rotates, and then the rotating cross rod is controlled to drive the first gear to rotate and to be engaged with the inner tooth set, so that the synchronous belt can drive the fish collecting plate and the fish collecting groove to rotate, fish at the fishway inlet is brought to the upstream, and migration of the fish is helped.

The diversion construction method comprises a diversion canal and a to-be-expanded river channel, the to-be-expanded river channel is arranged below the diversion canal, the diversion canal and the to-be-expanded river channel are distributed in a vertical crossing mode, and the diversion canal part corresponding to the to-be-expanded river channel is a diversion section. The flow guide section conducts flow guide through the flow guide system and is reinforced and supported through the two reinforcing systems. The construction method comprises the following steps that firstly, steel pipe type selection is conducted; secondly, pre-supporting construction is conducted; step 3, mounting a steel grating arch frame; fourthly, a bracket is installed; 5, steel pipe hoisting; sixthly, end wall construction is conducted; seventhly, water is pumped through a flow guide section; 8, constructing a river channel to be expanded; ninthly, the channel bottom and the channel embankment are repaired; tenthly, the steel pipe and the bracket are dismantled; eleventhly, water is introduced into the diversion canal. The construction method does not occupy land, and avoids the problems of low cost and high efficiency in the conventional structure construction technology of underneath passing the large diversion canal.

The invention belongs to the technical field of aqueduct maintenance, and particularly discloses a high and large aqueduct body concrete spraying and maintaining device which comprises two main beams, a plurality of main beams and a plurality of auxiliary beams. The number of the straining beams is multiple, the multiple straining beams are sequentially distributed in the length direction of the two main beams, and the two ends of each straining beam are fixedly connected with the two main beams correspondingly; the rails are arranged in two rows, the two rows of rails are arranged on the two sides of the top end of the aqueduct body respectively, and the two main beams are perpendicular to the rails and are in sliding fit with the two rows of rails; the water tank is mounted at the top ends of the two main beams; the number of the spraying pipes is two, the two spraying pipes are located on the two sides of the aqueduct body respectively, and gaps are formed between the spraying pipes and the aqueduct body; the upper part of the spraying pipe is connected with the main beam; the water tank is communicated with the spraying pipe through a pipeline, and the pipeline is connected with a booster pump; and a plurality of spray heads are mounted on the spray pipe. Spraying maintenance can be conducted on the aqueduct body on the outer side of the aqueduct body, and the maintenance quality is improved.

The invention relates to a multi-element self-balancing driven double-fish type tide-blocking floating body gate which comprises an arch-shaped gate body, the arch-shaped gate body is divided into two fish-shaped arch-shaped structures which are arranged in a bilateral symmetry mode, a plurality of flow passing holes which can be adjusted to be opened and closed are formed in the fish-shaped arch-shaped structures, a floating box is arranged on the fish belly portion of each fish-shaped arch-shaped structure, and the fish tail portion of each fish-shaped arch-shaped structure is provided with a weight. And a fish tail part of the fish-type arch structure is connected with a motor driving device, and the motor driving device transmits power to the fish tail part to rotate, so that the arch door main body is opened and closed. Compared with the prior art, the overflow hole is used for adjusting the water pressure difference and reducing the opening and closing resistance, the buoyancy box and the weight are used for ensuring the axial stability in the opening and closing process, and therefore multi-element dynamic self-balancing of the arch-shaped door at different water levels is achieved by adjusting buoyancy, water inlet and drainage and the weight of the tail end of the fishtail section; comprising weight self-balancing, driving force self-balancing and posture self-balancing, and the opening and closing efficiency, stability and accuracy of the gate can be effectively improved.

The invention discloses channel laying auxiliary equipment for water conservancy construction and a using method thereof, and belongs to the technical field of water conservancy construction.The channel laying auxiliary equipment comprises a support body, a linkage ejector rod and extrusion parts, the linkage ejector rod connected with a crane is installed at the top end of the support body, and the extrusion parts are symmetrically installed at the bottom end of the support body; clamping mechanisms for adjusting the angle of an extrusion part are symmetrically installed on the two sides of the support body, the clamping mechanisms and the extrusion part are arranged, the side wall of a to-be-conveyed channel plate is clamped and positioned through deflection of the angle of a swing force arm, and the movement track of the swing force arm is in an arc shape; according to the device, a rectangular plate and a V-shaped plate can be stably clamped and positioned, the application range of the device is expanded, a calibration mechanism is subsequently matched, the position of an extrusion part can be gradually moved, the plate can conveniently slide into a channel step by step, stable placement of the plate is achieved, and the stability of the device during operation is guaranteed.

The device comprises a cross beam horizontally and fixedly arranged above a rectangular channel section of an aqueduct in the left-right direction, and the portions, on the left side and the right side of a flow guide pier, below the cross beam are each provided with a grating type eddy current damping wave absorbing assembly. A water surface fluctuation monitoring sensor is arranged in front of the cross beam in the aqueduct, a fluctuation signal processor and a PLC are arranged on the cross beam, and the signal output end of the water surface fluctuation monitoring sensor is connected with the signal input end of the PLC through the fluctuation signal processor. The signal output end of the PLC is connected with the signal input end of the grating type eddy current damping wave absorbing assembly. The aqueduct has the following advantages that vertical oscillation of water in the aqueduct is effectively restrained, the vertical amplitude of water surface waves is reduced, and oscillation waves are prevented from splashing out of the aqueduct, so that the effective water cross section of the aqueduct is increased, the flow capacity of the aqueduct is improved, and the aqueduct is safe, low in energy consumption, low in cost and easy to implement.

The present invention discloses a double-layer overpass fishway structure, belonging to the field of fishway design in water conservancy projects. The double-layer overpass design enables an upper overflow and a lower submerged flow. The water flow structure within the pool chamber is diverse and can adapt to different water depths, creating favorable hydraulic conditions for fish with different preferences. The double-layer overpass fishway comprises: a trumpet-shaped inlet section, a hump-shaped weir transition section, a double-layer overpass pool section (including a lower disc-shaped channel section and an upper overflow section), and a resting pool section. The hump weir section divides the pool chamber into an upper overflow area and a lower submerged outflow area. The formation of the upper overflow area draws jumping fish into the upper overflow weir section, while the lower submerged flow area is used to attract bottom-dwelling fish and allow them to smoothly swim upstream through the disc-shaped channel section. The arrangement of the resting pool section creates a low-flow zone to allow fish to recover their strength, thereby allowing them to successfully complete their upstream migration and ensure the stability of the river ecosystem.

The utility model relates to the technical field of water conservancy projects, in particular to a water conservancy gate device which comprises a door frame, a lower gate is attached to the edge of the front portion of the bottom end of the inner side of the door frame, the two side walls of the lower gate are attached to the inner wall of the door frame, and guide mechanisms are arranged between the two side walls of the lower gate and the inner wall of the door frame. An upper gate is attached to the position, close to the upper edge, of the rear end of the lower gate, second sliding plates are fixedly connected to the upper edges of the two side walls of the upper gate correspondingly, second sliding grooves are formed in the positions, corresponding to the two second sliding plates, of the inner wall of the door frame correspondingly, and the two second sliding grooves are in sliding fit with the two second sliding plates correspondingly; and a fixing mechanism is arranged between the upper gate and the door frame. The water conservancy gate can be lifted in a sectional mode during water drainage operation, when the upper gate does not need to be lifted, only the lower gate needs to be lifted, and therefore the labor burden of workers is reduced, and meanwhile the water conservancy gate can conveniently control the water flow of drained water.

The invention relates to the technical field of water conservancy projects, in particular to a large pump station system which comprises a gate area, a sedimentation tank, a filter station, a transition area and a pump station runner area which are sequentially arranged in the water flow direction, an anti-floating bottom plate extends outwards from the edge of a wall of the large pump station system, and the gate area is provided with at least two main gates and at least one auxiliary gate; a plurality of first energy dissipation piers are arranged in the sedimentation tank; coarse screens and fine screens are arranged between the adjacent filter station guide walls in the filter station and between the filter station guide walls and the outer wall of the filter station; the transition area is in a horn mouth shape in the water inflow direction, and a plurality of second energy dissipation piers are arranged in the transition area. Water suction heads of water taking pumps are arranged between the adjacent water distribution walls in the pump station flow channel area and between the water distribution walls and the outer wall of the pump station flow channel area. According to the large pump station system, the anti-floating stability is improved through the anti-floating bottom plate, the water flow energy is gradually reduced through the partition design, and the problem that the pump station system is prone to being unstable due to the fact that a large amount of seawater flows into the pump station is effectively solved.

The utility model belongs to the technical field of engineering, and particularly provides a multi-stage energy dissipation channel structure suitable for abrupt slope terrains, which comprises a multi-stage energy dissipation unit, an outlet apron and a reinforced gabion which are sequentially connected from top to bottom. Each stage of energy dissipation unit comprises an abrupt slope and a stilling pool, and the lower end of the abrupt slope is connected with the stilling pool. However, energy formed by overhigh height difference is concentrated at the tail end for energy dissipation treatment, and the problems of large investment, large occupied area and poor safety often exist. According to the utility model, the difficulty that energy generated by height difference is concentrated at the tail end to be eliminated is avoided, the energy dissipation effect is greatly improved, the safety is better guaranteed, the building scale is reduced, and the investment is reduced.

The invention provides a spur dike with multiple ecological functions, and relates to the technical field of water conservancy and hydropower ecological protection, the spur dike comprises a river channel, a branch dam is arranged in the river channel, a fishway is arranged on one side of the branch dam, and a plurality of rows of parallel ecological spur dikes are arranged on a bank slope on the same side of the downstream end of the fishway; the ecological spur dike is arranged in the range of the return water change line and comprises a dam root connected with the bank slope, a dam body is arranged on the side, away from the bank slope, of the dam root and evenly divided into a plurality of layers in the water flow height direction, each layer is arranged in a turning plate mode, and ecological matrixes are arranged on the surfaces of the turning plates. In the fish breeding period, the turnover structure is opened to form a migration channel, fishes are assisted in finding a proper migration route and a fishway inlet in the downstream river reach close to the fishway side, and the fish migration dam passing efficiency is improved; in the non-fish breeding period, the overturning structure is closed, the water blocking, water controlling and flow adjusting effects of the spur dike continue to be achieved, and the inhabiting conditions with rich and diversified water flow are provided for the fishes in the local space.