34results about How to "Reduce risk of waterlogging" patented technology

The invention discloses an intelligent flat grate type catch basin based on a V-shaped filter structure. The catch basin is connected with a municipal rainwater pipe network. The intelligent flat grate type catch basin comprises four V-shaped filter structures with strainers; the two V-shaped filter structures on the outer side and the two V-shaped filter structures on the inner side are selectively opened and closed, and are driven to open and close by motors and transmission shafts. Compared with the prior art, the catch basin is simple in structure, and integrates the functions of filtering, sewage intercepting, steady seepage and intelligent forecast. Rain sewage intercepting efficiency is increased by optimizing structure design, the multiplying effect of the sewage intercepting quantity of the single catch basin is achieved, the urban inland inundation risk is reduced, cleaning accuracy and efficiency of cleaners are improved, and the catch basin has certain economy.

The invention discloses a permeable pavement based on a sponge city concept. The permeable pavement comprises traffic lanes and pedestrian ways. The traffic lanes comprise a surface layer, a base layer, a filter isolated layer, a permeable cushion and a subgrade from top to bottom in sequence; the pedestrian ways comprise permeable road surface bricks, a permeable cement concrete layer, a macadambase layer, a filter isolated layer and a base layer from top to bottom in sequence, boundaries between the traffic lanes and the pedestrian ways comprise curbs, permeable cement concrete faces and impermeable cement concrete faces from top to bottom in sequence, wherein the lower ends of the curbs extend to the base layer and the macadam base layer, the lower ends of the impermeable cement concrete faces are aligned with the lower end of the filter isolated layer. The permeable pavement based on sponge city concept has the advantages of that the water storage function of the permeable pavement structure is improved, the drainage pressure of municipal pipe network is relieved, occurrence of city water-logging is reduced and hydrological cycle of urban ecology is promoted.

The invention discloses a pavement brick capable of cutting off water at first and then permeating water and a preparation method thereof. The pavement brick comprises a water-storage brick-in porous solid body, a five-side dense impermeable enclosure structure and thorough pipes, wherein the thorough pipe is previously embedded into the water-storage brick-in porous solid body, and the five-side dense impermeable enclosure structure is arranged outside the brick-in porous solid body. Rainwater and surface runoff can enter the brick from the top and are previously stored in the brick-in porous solid body, namely, the pavement brick has a water cutting off function. A plurality of thorough pipes are embedded in the pavement brick from a certain depth to the bottom, pipe walls of the through pipes are impermeable, and a permeable material is arranged in the thorough pipes; when a water level in the brick-in porous solid body exceeds heights of the upper ends of the thorough pipes, water can flow into a base layer and a lower soil layer from insides of the thorough pipes, namely the pavement brick has a permeable function. The water cutting off function of the pavement brick can reduce urban surface runoff and reduce urban inland inundation, and meanwhile moisture cut off in the pavement brick can be evaporated in hot days, reduce road surface sensible heat loss and relieve an urban heat island effect.

The invention discloses a rainwater collecting and recycling system for a slope road with a ditch in a southwest hilly area. A rainwater collecting and recycling device is arranged between the slope road and a drainage ditch in the southwest hilly area, the rainwater collecting and recycling device is composed of a water collecting tank, a filtering layer, a gravel layer, a hedgerow and a water pumping device, the water collecting tank is of a closed cavity body structure, the top of the water collecting tank is sequentially provided with the filtering layer, the gravel layer and the hedgerow upwards, the water collecting tank and the drainage ditch are arranged in parallel, the upper part of the water collecting tank is provided with an overflow hole which communicates with the drainage ditch, the bottom position of the water collecting tank is lower than the bottom position of the drainage ditch, the water pumping device comprises a water suction pump, a water pumping pipe and a water outlet pipe, the water suction pump is arranged on one side of the hedgerow, the water pumping pipe is connected with a water inlet of the water suction pump, and a water outlet pipe is connected with a water outlet of the water suction pump. According to the rainwater collecting and recycling system, rainwater resources can be balanced, recycling of rainwater is realized, and loss of water, soil and nutrients in southwest hilly area is reduced.

The invention relates to the technical field of floor drainage, and discloses a drainage device for a multi-layer environment-friendly permeable floor, including a ground surface, the upper end of the ground surface is fixedly connected with a planting frame to the left, the inside of the planting frame is filled with soil, and the upper end of the ground surface A rectangular groove is provided, a baffle plate is fixedly connected to the upper end inside the ground surface, a square hole is arranged at the lower end of the baffle plate, a fixed cylinder is fixedly inserted in the middle of the upper end of the baffle plate, and a pressure plate is movably socketed on the outside of the fixed cylinder. After each rain, the rainwater flows through the floor layer to the upper end of the filter layer. The rainwater is filtered under the action of the filter layer and then flows to the upper end of the baffle through the leak hole, and then the rainwater flows to the interior of the ground through the square hole for storage. The height of the rainwater inside the surface reaches the opening at the right end of the drain. At this time, the excess rainwater inside the surface is discharged through the drain, so as to effectively absorb road rainwater, effectively replenish groundwater, maintain the balance of the urban natural water system, and reduce the risk of urban waterlogging. Effect.