Pavement structure for reducing urban rainwater flood and pollution

Abstract

The invention belongs to the technical field of rainwater recycling, and provides a pavement structure for reducing urban rainwater flood and pollution. External structural walls are arranged on the two sides, an indoor structural wall is arranged in the middle, the external structural walls are higher than the indoor structural wall, a top plate is arranged at the top of the indoor structural wall, the external structural walls are arranged at the two ends of the top plate, a roof panel is arranged below the top plate by 1-2 m, and roof water storage cavities are defined by the indoor structural wall, the external structural walls, the roof panel and the top plate on the two sides of the indoor structural wall respectively. A top downpipe is arranged on the upper portion of the outer side of the outer structural wall, a sundry sliding net is arranged under the top downpipe, and the sundry sliding net horizontally inclines downwards by 30-45 degrees. The pavement structure is advantageous in that through omnibearing collection of rainwater on the building roof and the pavement and high-efficiency rainwater storage, runoff pollution is effectively controlled while urban rainwater flood and huge pressure of an urban drainage system are obviously relieved.

Description

technical field [0001] The invention belongs to the technical field of rainwater reuse, and in particular relates to a pavement structure for reducing rainwater flooding and pollution in urban areas. Background technique [0002] With the acceleration of urbanization, the area of ​​urban impervious subsurface (roofs, roads, squares, parking spaces, etc.) continues to expand, resulting in an increase in surface runoff and a faster runoff speed. The rainfall retention capacity in urban areas has been greatly weakened, which has brought huge pressure on the urban drainage system, resulting in frequent floods in major cities in recent years, which has had a serious impact on people's lives, especially in the old cities. It also affects the stability of animal and plant habitats. As an important part of the urban impervious subsurface, the roof plays a very important role in rainfall runoff and occupies a large area in the city. For example, the roof of the commercial area accou...

AI Technical Summary

Problems solved by technology

The rainfall retention capacity in urban areas has been greatly weakened, which has brought huge pressure to the urban drainage system, resulting in frequent floods in major cities in recent years, which have had a serious impact on people's lives, especially in old cities that mostly use combined drainage systems. It also affects the stability of animal and plant habitats

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