Road system and rain processing method

Abstract

The invention relates to a road system and a rain processing method. The road system sequentially comprises a lane, a pedestrian way, a plant covered gentle slope, and a sponge facility along the cross section direction. Drainage ditches, which extend along the cross section direction, are alternately arranged under the pedestrian way. The water inlets of the drainage ditches are communicated withthe lane, and the water outlets of the drainage ditches are communicated with the plant covered gentle slope. The rain processing method comprises following steps: discharging rainwater in the lane to the plant covered gentle slope through the drainage ditches; discharging rainwater in the pedestrian way to the plant covered gentle slope, introducing rainwater into the sponge facility through theplant covered gentle slope; and discharging rainwater into a river or a rainwater pipeline from the overflow channel of the sponge facility. By optimizing the cross section of the road system, the surface space and underground space of the green area on the external side of the pedestrian way are fully utilized, rainwater runoff on the road is controlled, utilized, and naturally discharged, investment is reduced, the city ecological environment is improved, greening and maintenance are convenient, and a novel method is provided for optimizing road construction.

Description

technical field [0001] The invention relates to the technical field of engineering, in particular to a road system and a rainwater treatment method. Background technique [0002] At present, in the cross-section design of urban roads, green separation belts are usually set up in the middle of the road, the machine non-separation zone, and the sidewalk, which not only makes the road greening maintenance difficult, but also makes the road greening area scattered, which is not conducive to the ecological function of the green space. Moreover, the existing road greening design is mostly high-pile greening, which only considers the landscape effect, does not maximize its ecological efficiency, and does not play the functions of rainwater retention, conservation, purification, and infiltration. In addition, the existing road rainwater discharge mainly relies on rainwater pipelines to quickly discharge runoff rainwater to urban rivers, which increases the flood peak flow of road ru...

AI Technical Summary

Problems solved by technology

[0002] At present, in the cross-section design of urban roads, green separation belts are usually set up in the center of the road, the machine non-separation zone, and the sidewalk, which not only makes the road greening maintenance difficult, but also makes the road greening area scattered, which is not conducive to the ecological function of the green space.

Moreover, most of the existing road greening designs are high-pile greening, which only considers the landscape effect, does not maximize its ecological efficiency, and does not play the functions of rainwater retention, conservation, purification, infiltration, etc.

In addition, the existing road rainwater discharge mainly relies on rainwater pipelines to quickly discharge runoff rainwater to urban rivers, which increases the flood peak flow of road runoff to a certain extent and aggravates urban waterlogging, which is not conducive to the control of road rainwater runoff pollution. It also leads to difficulties in the maintenance of road drainage facilities and high maintenance costs

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