Urban road pavement rainwater collection and utilization system

Abstract

The invention discloses an urban road pavement rainwater collection and utilization system and relates to roads and green belts adjacent to the roads. The urban road pavement rainwater collection and utilization system at least comprises a water collection system, a blind ditch irrigation network connected with the water collection system and a drainage system communicated with the water collection system. The water collection system comprises water grates arranged along the side edges of a road and water collection wells located below the water grates, the drainage system comprises rainwater wells and municipal rainwater pipes connected with the rainwater wells, an overflow sill partition wall is arranged between the rainwater wells and the water collection wells, an overflow limit is formed at the top of the overflow sill partition wall, the blind ditch irrigation network is located in a green belt, and the latticed blind ditch irrigation network is formed by staggering of a plurality of blind ditches in a longitudinal and transverse mode so as to irrigate the covered green belt evenly. The urban road pavement rainwater collection and utilization system has the advantages of capable of utilizing rainwater efficiently, having functions of rainwater filtering, greening and irrigation and greening and water storage, and being suitable for various roads with longitudinal slopes and cross sections, convenient to construct and reasonable in construction cost.

Description

technical field [0001] The invention belongs to the technical field of rainwater collection and utilization, and in particular relates to a system for collecting and utilizing rainwater on urban road surfaces. Background technique [0002] With the further acceleration of urbanization, the contradiction of urban water shortage has further deepened, and environmental and ecological problems have also expanded simultaneously. my country is a very water-scarce country. The current per capita water resources share is only 1 / 4 of the global per capita water resources share. More than 300 cities are water-scarce cities. Due to the rapid development of urbanization and the expansion of impermeable areas such as roads and buildings, on the one hand, rainwater can no longer infiltrate into the ground to replenish groundwater, deteriorating the water environment and ecological environment around the city; on the other hand, runoff quickly gathers during heavy rain Cause ground water ...

AI Technical Summary

Problems solved by technology

For example, in the pavement rainwater utilization system implemented in a certain city, there are the following problems: the surface blind ditch is exposed on the ground, and the landscape effect is poor; without geotextile for filtration, garbage will be detained in the blind ditch, affecting the irrigation effect of the blind ditch The ditch and the rainwater well will also be congested due to sludge and other garbage; too much modification of the common curbs in the current situation will make the construction difficult and difficult to produce in batches; and in terms of performance, it will easily lead to siltation in the drainage holes and poor drainage ;

[0006] Since the blind ditch is completely arranged according to the longitudinal slope of the road, in the section with a large longitudinal slope, the vertical water catchment will be greater than the horizontal one, resulting in the water catchment concentrated in some road sections, while the horizontal blind ditch is difficult to fully collect water, which eventually leads to uneven irrigation

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