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A Dynamic Infiltration Stormwater Pond System Based on Low Impact Development

A rainwater pond and rainwater technology, applied in the fields of environmental protection and municipal engineering, can solve problems such as affecting the infiltration capacity of rainwater in development facilities, and achieve the effects of easy popularization and promotion, easy promotion and low installation cost.

Inactive Publication Date: 2016-04-06
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention aims to solve the problem of rainwater infiltration capacity of low-impact development facilities limited by the groundwater level

Method used

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  • A Dynamic Infiltration Stormwater Pond System Based on Low Impact Development
  • A Dynamic Infiltration Stormwater Pond System Based on Low Impact Development
  • A Dynamic Infiltration Stormwater Pond System Based on Low Impact Development

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Experimental program
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Embodiment 1

[0020] Embodiment 1: The device includes a rainwater collection device 2, a diversion well 4, a municipal pipe network 5, an initial rainwater abandonment well 6, a rain pond 7, an anti-seepage layer 8, a gravel layer 9, a soil layer 10, and a water stop sheet 11. Infiltration conduit 12, cover flange plate 13, butterfly valve 14, fixing bolt 15, fixing nut 16, motor 17, infiltration hole 18; several square concrete rainwater collection devices 2 are arranged so that rainfall 1 can pass through the rainwater collection device 2 can be effectively collected; the rainwater collected by the rainwater collection device 2 is transported to the diversion well 4 through the rainwater pipeline 3 for diversion, and a part of the rainwater passes through the initial rainwater abandonment well 6, and the initial rainwater with a high concentration of suspended matter is discarded. Relatively clean rainwater enters the rainwater seepage pond 7; another part of the rainwater beyond the maxi...

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Abstract

The invention belongs to the technical fields of municipal engineering and environmental protection, and in particular relates to a dynamic infiltration rainwater pond system based on low-impact development. When it rains, the rainwater collection system transports the rainwater to the rainwater pond for storage; a number of dynamically opened and closed downseepage holes are set in the rainwater pond, and the infiltration of the rainwater pond is controlled by the electric butterfly valve above the downseepage hole. When the rainwater pond flows in in rainy days, the butterfly valve opens under the set water level conditions of the rainwater pond. By adjusting the water level difference between the rainwater pond and the groundwater, the infiltration rate of the rainwater pond is dynamically adjusted, so that the rainwater infiltrates quickly under a relatively high water level difference. The rainwater infiltrates down to the gravel layer through the seepage hole, and infiltrates slowly. After the rainfall ends, the electric butterfly valve above the lower seepage hole is closed, and the stored rainwater is used as landscape water for the rainwater pond.

Description

technical field [0001] The invention belongs to the technical fields of municipal engineering and environmental protection, and in particular relates to a dynamic infiltration rainwater pond system based on low-impact development. Background technique [0002] In the process of urbanization, the increase of impermeable area and the superimposition of extreme weather conditions have caused urban waterlogging problems, which seriously threaten the safety of urban operation. The Ministry of Housing and Urban-Rural Development issued the "Technical Guidelines for Sponge City Construction-Construction of Rainwater System for Low-impact Development" issued in July 2014. It is proposed that in the future, urban construction will emphasize the main planning and design concepts of "slow drainage and slow release" and "source decentralization" control , Adopting low-impact development measures to reduce rainwater runoff from the source, the specific implementation methods include sunk...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E03B3/02E03F5/10E02D31/00
CPCY02A20/108
Inventor 尹海龙徐祖信解铭李怀正
Owner TONGJI UNIV
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