37results about How to "Improve flood discharge capacity" patented technology

The invention discloses an improved regulation and storage system for urban road rainwater collection and green land conservation. The improved regulation and storage system comprises a control system, a drainage ditch, a coarse filtration tank, a fine filtration tank, a regulation and storage tank and a back-flushing device, wherein the drainage ditch, the coarse filtration tank, the fine filtration tank, the regulation and storage tank and the back-flushing device are communicated in sequence, a frame-shaped filtration grille for filtering the rainwater collected by a rainwater perforated strainer is hung at the top end of a wall body of the drainage ditch, a filtration screen is arranged at the connecting position of the drainage ditch and the coarse filtration tank, a seepage well is communication with the regulation and storage tank through a drainage pipe, a filtration structure for filtering the rainwater is arranged at the top end of the seepage well, and the bottom of the seepage well is installed in a sponge water-storage layer. The regulation and storage tank comprises a side wall, a bottom wall and a plurality of watering water pipes, the back-flushing device comprises a water inlet pipe, a water pump, a back-flushing pipe and a blow-off pipe, and the bottom end of the coarse filtration tank and the bottom end of the fine filtration tank are communicated through a mud discharging pipe. The control system comprises a control unit, a magnetic valve and a plurality of humidity sensors. A liquid level sensor is installed on the upper surface of the section, where the regulation and storage tank is located, of an overflow pipe. The water pump, the humidity sensors and the liquid level sensor are all connected with the control unit.

The invention mainly discloses a riverway chain bucket type dredging ship and a dredging construction method thereof. According to the technical scheme, the riverway chain bucket type dredging ship comprises a ship body, a control chamber, a retiring room, a support, at least two chain bucket conveying mechanisms and a sludge collecting bin. A lifting mechanism is arranged between each chain bucket conveying mechanism and the support. Moving devices and salvage devices connected with the moving devices are arranged on the two sides of the ship body, and a salvage basket and a power paddle are arranged on the rear side of the ship body. The method comprises the first step of construction preparation, the second step of chain bucket type dredging ship position adjustment, the third step of chain bucket conveying mechanism descending position control, the fourth step of dredging work conduction, the fifth step of sludge treatment work and the sixth step of subsequent work. By means of the method, sludge at the river bottom can be efficiently removed, objects floating on the river surface can be removed as well, suspension pollutants brought from the sludge during salvage work are eliminated, and a riverway is dredged; and the flood discharge capacity of the riverway is improved, the water quality is improved, and water pollution is reduced.

A diversion work for river gate dams and spillways comprises an integrated platform made of two segments; wherein, the inside wall of the first segment platform is an circular conical surface; the outside wall is a circular cylindrical surface; both the top face and the bottom face are planes; the inside wall of the second segment platform is a torsion face, and the outside wall is a tangential plane against the circular cylindrical surface of the first segment platform; both the top face and the bottom face are also planes. In installation, the tail of the transition torsion face of the second segment platform is tangentially connected with side walls of an inlet side hole on a river gate dam or a spillway. The diversion work can effectively resolve the problem of transiversal shrinkage of water flow in front of inlets of the river gate dam and the spillway. To further improve water flow status, it is necessary to add a vertical guide dam; one end of the vertical guide dam is linked to the tail of the transition torsion face of the second segment platform; the other end is connected with the side wall of the river gate dam or the spillway inlet side hole. In a plurality of projects, the first segment platforms can be extended to connect with the bank, for which the surrounded lands can also be utilized for other purposes.

The embodiment of the invention provides an account opening task processing method, which is characterized in that an account opening request sent by a user terminal is converted into asynchronous task processing, and the asynchronous task processing is periodically delivered to a multi-layer task processing platform for distribution processing. Therefore, account opening processing has a retry capability, the user experience is ensured, the tasks can be uniformly distributed to all application service equipment for execution through the distribution capability of the multi-layer task processing platform, and the overall processing capability of the system is greatly improved.

The invention provides a dam body device for treatment of an urban artificial watercourse. The dam body device comprises a first dam body, a first plugging device, an aquatic plant planting zone and a blocking device, wherein the first dam body extends in the width direction of the urban artificial watercourse; the lower part of the first dam body is provided with a first drainage channel; the side surface, facing the downstream part of the urban artificial watercourse, of the first dam body is a slope surface; a plurality of first salient points are arranged on the slope surface; the first plugging device is arranged to conduct or cut off the first drainage channel; the aquatic plant planting zone is arranged at the downstream part of the first dam body; the aquatic plant planting zone is arranged for planting aquatic plants; the blocking device is arranged at the downstream part of the aquatic plant planting zone, and is provided with at least one blocking unit; and the blocking units are provided with first fish screens, activated carbon fiber filter cloth, chitosan fiber filter cloth and second fish screens which are sequentially arranged in the water flowing direction. The dam body device is simple in structure, can isolate algae floating objects like blue-green algae in a water body, can block and remove parts of organic substances and heavy metals, and has an excellent treatment effect.

The invention discloses a crank-arm steel dam gate comprising a steel dam gate leaf mounted between left and right side walls. The bottom of the steel dam gate leaf is connected with a dam body through a bottom cross shaft, and the steel dam gate leaf swings around the bottom cross shaft; water stopping is achieved when the steel dam gate leaf swings upwards, and water discharging is achieved whenthe steel dam gate leaf swings downwards. The crank-arm steel dam gate is characterized in that the steel dam gate leaf at the upstream face and/or the two ends of the bottom cross shaft are respectively connected with front extending crank arms, and a crank arm hinge is arranged on each crank arm; each crank arm hinge is connected with an opening and closing device which comprises a telescopic opening and closing oil cylinder, a water isolating plate is arranged on the steel dam gate leaf to isolate the crank arm exposed to the front of the upstream face from river water, the opening and closing devices are located at the rear end of the water isolating plate, and water sealing strips which are in contact with the left and right side walls are arranged on the water isolating plate. The crank-arm steel dam gate completely changes the basic shape and characteristics of a conventional steel dam gate, the defect which is not solved at present of the steel dam gate is overcome, and the crank-arm steel dam gate has important significance for popularization and application of the steel dam gate on water conservancy facilities.

The invention belongs to the technical field of water conservancy projects, and particularly relates to an overflow dam with a flood discharge function for a water conservancy project. When the overflow dam is used and the upstream water level is full during the flood peak period, water blocked by the overflow dam can be completely released only by slowly lifting an inserting plate, when the inserting plate is lifted, the water flow at the bottom impacts on a first rotating wheel, at the moment, a rope winding wheel starts to wind a rope, then a lifting force is provided for the inserting plate, and the problem that the inserting plate is lifted in a more labor-saving mode is solved. According to the scheme, the overflow dam comprises a dam body, wherein the dam body is of a prism-shaped structure with a cavity; a notch is reserved in the middle of the dam body; T-shaped sliding grooves are formed in the opposite sides of the notch; and the same inserting plate with a flat cuboid structure with a cavity is connected between the two T-shaped sliding grooves in a sliding mode. The overflow dam is novel in structure, good in drainage smoothness performance and good in silt dischargingeffect, the high water level can be reduced in time, and the flood discharge capacity and speed are improved.

The invention discloses a green corridor type regulating and storing system of a wandering river in an arid area. The green corridor type regulating and storing system includes a river channel regulating and storing belt arranged on a riverbed and slope stabilization belts arranged on river banks on the two sides. The river channel regulating and storing belt comprises aquatic vegetation, a cobblestone layer, a permeable paving layer, a vegetation planting soil layer and a water storing and collecting layer which are arranged sequentially from top to bottom. Each slope stabilization belt comprises a sand-proofing grid laid on the corresponding river bank and vegetation planted on the corresponding sand-proofing grid. When a flood season comes, the river channel regulating and storing beltin the green corridor type regulating and storing system provides a certain storage space and increases the capacity of flood discharging of a river channel. When a drought period comes, the purpose of recharging ecological base flow is achieved through water resources stored in the river channel regulating and storing belt.

The invention provides a shoal wetland construction method considering earthwork volume balance and habitat diversity, and belongs to the technical field of ecological protection and restoration, and the shoal wetland construction method comprises the following steps: 1) conducting restoration area identification, specifically carrying out identification analysis based on remote sensing data in combination with ecological function partition and landscape pattern current situation; 2) carrying out field investigation on the restoration area mainly aiming at the terrain, the size of the embankment and the growth condition of local plants; 3) selecting a terrain scheme, specifically selecting a terrain construction scheme, and selecting a size; 4) building a terrain; and (5) conducting vegetation three-dimensional configuration, wherein the vegetation is considered from the perspective of emergent aquatic plants, floating plants and submerged plants. Through the design, a land and water transition zone is formed by utilizing terrain construction aiming at the reconstruction problem of the lake dam, so that the flood discharge capacity of the lake is improved, the wetland habitat of the lake is restored, the biological diversity is improved, the stability of an ecological system is improved, and the ecological problem of the hydro-fluctuation zone caused by water level change can be prevented and relieved.

The invention relates to an energy-saving combined double-body ship for cleaning river water bottom sludge and a corresponding river silt removing method. In order to fill up the blank in the prior art, the energy-saving combined double-body ship for cleaning the river water bottom sludge comprises N rake assemblies, a main hull and an auxiliary hull, wherein each rake assembly comprises a cutterhead, a connecting plate and a tail rake, the middle section and the rear part of the connecting plate are hinged to a front control rod and a rear control rod respectively, the upper parts of the front control rod and the rear control rod are bound and fixed to handrails on the side wall of the outer side of the auxiliary hull through binding ropes, a pull rope is tied on the front part of the cutter head of each rake assembly, and the other end of the pull rope is tied on the inner wall of the main hull, wherein N is a positive integer, N is greater than or equal to 3 and less than or equalto 100, the length of the control rod is larger than twice of the depth of the river water to be cleaned, the length of the pull rope should be around the bottom of the auxiliary hull, and the rake assembly can still be moved to the auxiliary hull. The method has the advantages of being low in energy consumption and low in cost, is suitable for serious deposit rivers, and is especially suitable for silt removing of different river segments in the middle and lower streams of the Yellow River.

The invention discloses a construction method for constructing an overflow weir surface based on an overflow weir body and a combined template. The construction method is applied to the overflow weir, the overflow weir comprises the overflow weir body and a pouring body, and the surface of the pouring body is the overflow weir surface. The pouring body comprises a downstream pouring body. The construction method at least comprises the following steps that the overflow weir body is built based on the design form of the pouring body; on the basis of the overflow weir body, a plurality of first templates are fixed to the downstream side of the overflow weir body and connected to form a curved surface template set, and a first reserved gap is reserved between the curved surface template set and the overflow weir body; after the curved surface template set is connected to the overflow weir body, a first slope angle formed by the curved surface template set and a horizontal plane is gradually changed in the height direction; concrete is poured into the first reserved gap, so that the downstream pouring body is formed on the downstream side of the overflow weir body, and the downstream overflow weir surface is constructed. The method solves the technical problem that in the construction process of the special-shaped curved surface overflow weir, the construction quality is difficult to control.

The invention relates to a double-layer n-shaped pier and longitudinal crossbeam falling rock preventing structure. The structure comprises lower-layer three-column type n-shaped piers transversely constructed above a railway bridge foundation platform, and a railway beam is erected between the two longitudinally-adjacent lower-layer three-column type n-shaped piers; and upper-layer double-columntype n-shaped piers located above the railway beam are transversely constructed on pier tops of the lower-layer three-column type n-shaped piers, a longitudinal crossbeam is arranged between pier topsof the two longitudinally-adjacent upper-layer double-column type n-shaped piers, and a buffer layer is laid at the top of the longitudinal crossbeam. Falling rocks can be effectively prevented frominvading into a railway clearance, a railway pier foundation and a protective structure foundation are combined into a whole, occupation of the lower space is reduced, and the total work amount is reduced. The falling rock protection advantage is obvious especially in a section with a short bridge sandwiched between two tunnels in a steep V-shaped groove area.

The invention provides a flood discharge structure of a concrete gravity dam. The structure is arranged at an overflow dam section of the concrete gravity dam. The flood discharge structure comprisesa water retaining wall of the overflow dam section, an overflow wall distributed at the upstream side of the water retaining wall, an overflow groove formed in the downstream side of the overflow wall, a water collecting pool formed at the upstream side of the water retaining wall, a stilling sill arranged at the bottom of the water collecting pool, and a vertical shaft type spillway formed in theoverflow dam section. The vertical shaft type spillway comprises a vertical shaft flood discharge section, a horizontal flood discharge section and a connecting flood discharge section connected between the vertical shaft flood discharge section and the horizontal flood discharge section; the upper end of the vertical shaft flood discharge section extends to the bottom of the water collecting pool and is communicated with the water collecting pool; and an outlet of the horizontal flood discharge section is located in a downstream river channel. According to the flood discharge structure of the concrete gravity dam, by arranging the overflow wall, the width of a water inlet front edge can be increased, and the flood discharge capacity is improved; and discharged water flow is collected through the water collecting pool, so that the width of the discharged water flowing into a river is reduced, energy dissipation is conducted on the discharged water flow through the stilling still and the vertical shaft type spillway, and scouring of the discharged water flow to a downstream side slope is reduced.

The invention discloses a rainwater garden beneficial to improvement of biological diversity and a construction method thereof. The rainwater garden comprises a foundation pit, wherein the foundation pit is sequentially filled with a planting soil layer, a gravel layer and a pebble layer, a water drainage pipe and a water guide pipe are buried in the pebble layer, the water drainage pipe is communicated with a municipal pipe network, and a plurality of water inlet holes are formed in the water drainage pipe; the water guide pipe is connected with a water collection tank located under an eave; and the planting soil layer is used for planting various ornamental plants, the gravel layer and the pebble layer are used for filtering rainwater, the rainwater is accumulated while the redundant rainwater is guided to be drained to the municipal pipe network, and normal growth of the ornamental plants is guaranteed. According to the rainwater garden, a small ecological circulation system is formed through reasonable arrangement of a plurality of functional layers, a place for the small animals such as insects to live is provided, and meanwhile the ornamental value of the garden can be improved; and the flow speed of the rainwater entering the municipal pipe network can be adjusted, urban waterlogging is relieved, the rainwater is recycled, and the water consumption of the garden is reduced.