Urban main road cross section optimization system and rainwater treatment method

Abstract

The invention provides a road cross section optimization system for an urban main road. The road cross section optimization system comprises a combined central separation strip, a motor vehicle lane, a motor vehicle and non-motor vehicle separation strip, a non-motor vehicle lane, a boundary green belt, a combined sidewalk and an edge green belt which are arranged in sequence. The combined type central separation strip is composed of the fixed type central separation strip body and the movable type central separation strip body, the rainwater infiltration capacity can be improved through the fixed type central separation strip body and a runoff structure arranged in the fixed type central separation strip body, and the underground water supplementing capacity is improved; meanwhile, rainwater can be subjected to multi-stage purification treatment, it is guaranteed that the content of impurities entering the urban drainage pipeline is small, the service life of the urban drainage pipeline can be prolonged, and the operation pressure is reduced.

Description

technical field [0001] The invention relates to a system for optimizing the cross section of an urban arterial road and a rainwater treatment method, belonging to the technical field of rainwater treatment. Background technique [0002] With the rapid development of the economy, the hardening rate of urban ground in my country has increased year by year, which has blocked the replenishment of groundwater by rainwater, and the rainwater on the road surface and surrounding areas has flowed away from the urban rainwater pipe network in vain, which not only wastes a lot of precious rainwater resources, It also overwhelms the sewage treatment plants of the urban drainage pipe network and the water environment, increasing the pressure on flood control and internal waterlogging, and affecting the urban water circulation system; [0003] At present, in the design of cross-sections of urban roads, the central divider usually accounts for a large proportion of the green belt, and the p...

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Problems solved by technology

[0002]With the rapid development of economy, the hardening rate of urban ground in my country is increasing year by year, which makes the replenishment of groundwater by rainwater blocked, and the rainwater on the road surface and surrounding areas is drained from urban rainwater pipes The nets flow away in vain, which not only wastes a lot of precious rainwater resources, but also overwhelms the sewage treatment plants of the urban drainage pipe network and the water environment, increasing the pressure on flood control and internal waterlogging, and affecting the urban water circulation system;

[0003]Currently, in the cross-section design of urban roads, usually the central divider of the road accounts for a large proportion of the green belt, and the proportion of the non-machine separation belt is relatively small. The greening method of the sidewalk Most of them are tree ponds, and these green belts mainly play the role of greening and landscape, but do not play the role of rainwater infiltration in the permeable area of ​​urban green space, initial rainwater purification, barrier and reduction of automobile exhaust pollutants

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