Permeable hidden drainage ditch and construction method thereof

Abstract

The invention relates to the technical field of municipal drainage, in particular to a permeable hidden drainage ditch and a construction method thereof. The permeable hidden drainage ditch comprises a drainage ditch body, the drainage ditch body is installed in a foundation soil layer, a top plate is installed at the top of the drainage ditch body, a water inlet groove is formed in the top plate, the inner bottom of the drainage ditch body is communicated with the foundation soil layer, pebbles are laid on the inner bottom of the drainage ditch body, and a supporting sieve plate is arranged in the middle of the drainage ditch body. The bottom of the drainage ditch body is open, water can permeate into the ground along bottom soil after entering the drainage ditch body, the water retention capacity of the soil is fully utilized, pebbles are laid at the bottom so that water can be further filtered, meanwhile, in the water flowing process, the pebbles can slow down the water flowing speed, and the water storage effect is achieved; the supporting sieve plate is used for filtering large pollutants in water, so that polluted underground water is prevented from blocking a sewer line.

Description

technical field [0001] The invention relates to the technical field of municipal drainage, in particular to a permeable concealed drainage ditch and a construction method thereof. Background technique [0002] The concept of sponge city has been actively promoted in various regions of my country. Cities at all levels have integrated the concept of "sponge city" to varying degrees in the development process. Sponge cities have advantages in adapting to environmental changes and dealing with natural disasters caused by rain. Good elasticity, using LID (Low Impact Development: low-impact development) facilities to make full and reasonable use of rainwater, so it can also be called "water elastic city". The water treatment of the sponge city includes seepage, stagnation, storage and purification. , use and discharge and other requirements. [0003] At present, the drainage in the sponge city generally adopts a more traditional urban drainage system. The disadvantage is that the d...

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Problems solved by technology

[0003] At present, the drainage in the sponge city generally adopts a more traditional urban drainage system. The disadvantage is that the drainage method is too simple and belongs to the closed drainage method, which cannot play the role of water storage in the sponge city, so it cannot meet the needs of the sponge city. The requirements for the full use and deployment of rainwater and groundwater, while the filtration system of the traditional urban drainage system is relatively simple, it is easy to breed mosquitoes and affect the sanitation of the city

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