Road-dependent rainwater purification and storage ecological utilization system in northern cities

A technology of rainwater and roads, applied in the field of rainwater purification, regulation and storage ecological utilization system in northern cities, can solve the problems of urban greening retention, full utilization of purification, increase of urban management and operation costs, and use of easily destructible urban green belts, etc., to achieve Increase the permeable area of ​​the surface, alleviate the water accumulation in rainy seasons, and reduce the effect of road accumulation

CN109183532AActive Publication Date: 2019-01-11于佳惠
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2019-01-11

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Abstract

The invention relates to the technical field of urban construction, in particular to a road-dependent rainwater purification and storage ecological utilization system in northern cities, comprising aroad central drainage green plant unit, a roadside drainage unit, a roadside surface green plant purification unit, an underground seepage storage unit and rainwater wetland gardens, wherein due to the road central drainage green plant unit, the surface water permeable area of the pavement is increased; the drainage ditch can effectively reduce the garbage blocking the pavement drainage outlet, accelerate the drainage velocity, and prevent the snow water containing snow melting agent from flowing into the green belt in winter; due to the sidewalk drain ditch, excessive rainwater on the pavement is introduced into the roadside surface green plant purification unit to increase the infiltration area and time of the rainwater; the underground seepage storage unit is set up to store rainwater for later use; due to the rainwater wetland gardens, the rainwater infiltration area and rainwater retention time can be enlarged in rainy season; and the rainwater wetland gardens and the roadside surface green plant purification unit are connected in ditches, thus greatly reducing the amount and area of road water.
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Description

technical field

[0001] The invention relates to the technical field of urban construction, in particular to an ecological utilization system for rainwater purification, regulation and storage in northern cities attached to roads. Background technique

[0002] Sponge city is a brand-new urban construction concept proposed by the country to solve problems such as urban waterlogging, non-point source pollution, and serious damage to the urban water circulation system. Sponge city requires the city to have the functions of infiltration, stagnation, storage, purification, utilization and drainage of rainwater .

[0003] Rainfall is a very important link in the natural water cycle system, and it is a natural source of supply for rivers, lakes, ponds, artificial landscape water extraction, etc. It has obvious randomness, seasonality and unevenness, especially in northern cities. Spring and autumn are dry, and summer is rainy. During the rainy period, the city is prone to waterlogg...

Examples

Embodiment 1

[0025] Refer to attached Figure 1-5 , an ecological utilization system for rainwater purification, regulation and storage in northern cities attached to roads, including road central drainage and green plant unit 1, roadside drainage unit 2, roadside surface green plant purification unit 3, underground seepage storage unit 4 and rainwater wetland garden 5;

[0026] The road central drainage green plant unit 1 is a ditch-like structure with two ends high and the middle low, and the water flows from the upstream to the downstream along the ditch body; it includes the road central edge cornerstone 11, gravel shallow ditch 12, vegetation layer 13, three-dimensional soil fixation network Pad 14 and backfill soil layer 15; road central edge cornerstone 11 is the road central edge cornerstone, which is at the same height as the road surface of the road 7, and is respectively arranged on both sides of the road central drainage green plant unit 1; The stone shallow ditch 12; the grav...

Embodiment 2

[0033] When the road is inclined from high to low, the underground seepage storage unit is distributed downward in a stepwise manner according to the inclination angle of the road; the ditch-shaped underground seepage storage unit located on the upper part is provided with a rainwater storage retaining platform in the direction of downward extension; the rainwater storage The top of the water retaining platform is arranged in an arc shape in the middle to facilitate the flow of the underground water seepage storage unit at the upper part to the bottom when it is full of water.