Rainy area sponge city road ecological retention ditch system
A technology of sponge city and ecological retention, which is applied in the direction of waterway system, side ditches/curbs, water/sludge/sewage treatment, etc., and can solve the problem of pipeline sediments rushing into water bodies, water quality pollution of receiving water bodies, and rainwater cannot be discharged as soon as possible Income and other problems, to achieve the effect of reducing soaking, reducing road surface water, and simple construction
Inactive Publication Date: 2021-04-20
CHINA 19TH METALLURGICAL CORP
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Problems solved by technology
In the existing sponge city drainage mode, drainage pipes and ditch systems are the most commonly used, but they can only be used as rainwater collection systems, and rainwater cannot be discharged into the municipal rainwater pipe network as soon as possible, resulting in frequent water accumulation on the road surface, and rainwater soaking the road. Waterlogging phenomenon; and the initial rainwater is directly discharged into the receiving water body after being transported by pipeline, which not only easily causes water pollution of the receiving water body, but also flushes the pipeline sediment into the water body, causing double pollution
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[0021] In order to facilitate understanding of the present invention, the present invention will be further described below in conjunction with the accompanying drawings.
[0022] like Figure 1 to Figure 3 As shown, in the rainy area sponge city road ecological retention ditch system disclosed by the present invention, a bioretention ditch 300 is set between the green belt 100 and the motorway 200, and the bioretention ditch 300 is a concave ditch structure. 300 is provided with a plurality of overflow wells 400, and the overflow wells 400 are arranged at intervals along the length direction of the bioretention ditch 300, and the overflow wells 400 are connected through the perforated pipes 500 buried in the bioretention ditch 300, and the overflow The well 400 is connected with the municipal rainwater pipe 600 of the municipal rainwater system; the spaces in the bioretention ditch 300 except the overflow well 400 are filled with a multi-layer permeable structure. When the r...
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The invention discloses a rainy area sponge city road ecological retention ditch system which is characterized in that a bioretention ditch is arranged between a green belt and a motor vehicle lane, a plurality of overflow wells extending from the ground surface to the lower part of the bioretention ditch are arranged in the bioretention ditch along the length extending direction, and a plurality of overflow wells are communicated through perforated pipes penetrating through the bioretention ditch; the overflow well is communicated with a municipal rainwater pipe buried in the bioretention ditch; other spaces in the bioretention ditch are filled with a multi-layer permeation structure. The method is high in practicability, can use local materials and is simple in construction; rainwater of green belts and motor vehicle lanes can be quickly drained into a municipal rainwater system, accumulated water on the road surface is reduced, pedestrian and driving safety is ensured, roadbed soaking caused by rainwater is reduced, and normal use of the road is ensured. The system has good water retention, water seepage and water purification effects on rainwater, and utilization efficiency of the sponge city bioretention ditch is improved.
Description
technical field [0001] The invention relates to the technical field of municipal road construction, in particular to an ecological retention ditch system for sponge city roads in rainy areas. Background technique [0002] Sponge city is a new generation of urban stormwater management concept, which means that cities can be like sponges and have good elasticity in adapting to environmental changes and dealing with natural disasters caused by rainwater. Bioretention facilities are an important part of the sponge city. It is a linear, shallow, concave landscape space with rich landscape plants and regular shapes. At present, in the design of municipal road sponge city, the treatment of non-point source pollution is the design focus. [0003] Surface runoff from urban roads is the main component of non-point source pollution. Initial rainwater contains many pollutants such as suspended particles, organic pollutants, heavy metals, and oil substances, which have a serious impact ...
Claims
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IPC IPC(8): E01C11/22E03F5/04E03F5/06E03F5/14
Inventor 段江涛高麦玲
Owner CHINA 19TH METALLURGICAL CORP