Water seepage and flood drainage system based on sponge city
A sponge city and water pipe technology, applied in waterway systems, sewage removal, water supply devices, etc., can solve the problems of urban rainwater that is difficult to infiltrate, store up and utilize, etc., achieve flood discharge capacity relief, do not occupy ground space, and reduce sediment content Effect
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Embodiment 1
[0029] Such as figure 1 As shown, the seepage and flood drainage system based on the sponge city includes a constructed wetland 5, the constructed wetland 5 is connected to the buffer pool 3 through the second water pipe 4, and the buffer pool 3 is connected to the river channel 1 through the first water pipe 2; the constructed wetland 5 is set in a park or In other environments to be greened, this system has been built and the environment has been beautified.
[0030] Such as figure 2 As shown, a disinfection layer 54, a first isolation layer 53, a water storage layer 52 and a planting layer 51 are sequentially arranged in the constructed wetland 5 from bottom to top; wherein the planting layer 51 is mainly filled with soil, and planting layers 51 are planted with Water plants 58; the matrix in the aquifer 52 is mainly coarse sand, and the coarse sand preferably has a diameter of quartz sand between 1mm-8mm; the first isolation layer 53 is provided with a mud-blocking plate...
Embodiment 2
[0037] This embodiment is a further improvement on the seepage and flood drainage system on the basis of Embodiment 1. For details, refer to image 3 , the seepage and flood drainage system based on the sponge city also includes an intercepting device 11 for intercepting river garbage, preventing large pieces of garbage in the river 1 from entering the first water pipe 2 to cause blockage of the water pipe and affecting the normal operation of the system.
[0038]The intercepting device 11 is set as a hollow triangular prism, a water inlet 111 and an installation hole 112 surrounding the water inlet 111 are arranged on one side of the triangular prism; a grid plate 113 is arranged on one side of the triangular prism. During implementation, the water inlet 111 of the intercepting device 11 is docked with the first water pipe 2, and the intercepting device 11 is fixed on the river channel wall by using the installation hole 112, so that the side with the grid plate 113 faces away...
Embodiment 3
[0042] This embodiment is a further improvement on the constructed wetland on the basis of Embodiment 1 and Embodiment 2. For details, refer to figure 1 and figure 2 , the constructed wetland 5 also includes a water collection layer 55 arranged below the disinfection layer 54, the water collection layer 55 is formed by stacking several empty boxes 551, and the surface of the empty boxes 551 is provided with through holes, one of which is close to the bank of the constructed wetland 5 A water pump 59 is arranged in the empty tank 551; a second isolation layer 56 is arranged below the water collecting layer 55, and the structural materials of the second isolation layer 56 and the first isolation layer 53 are the same. A large number of cavities formed by the water collection layer 55 enable it to accumulate a large amount of water resources, which can quickly infiltrate in rainy seasons and be absorbed by upper vegetation in dry seasons, ensuring the ecological balance of the c...
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