Sidewalk pavement structure for water permeation, water storage and water discharging

Abstract

The invention discloses a sidewalk pavement structure for water permeation, water storage and water discharging. The sidewalk pavement structure comprises a sidewalk, a roadway and a rainwater port communicated with a municipal water discharging system and further comprises a transverse water permeation pipe, the sidewalk comprises a water-permeable surface layer, a water-permeable leveling layer, a water-permeable base layer and an inverse filtering cushion which are arranged sequentially from top to bottom, a groove paved with a filling material is formed in the bottom of the inner side of the inverse filtering cushion, and waterproof geotechnical cloth is arranged at the bottom of the inverse filtering cushion, on the left and right sides of the groove and at the bottom of the groove; first kerbs are arranged on two sides of the sidewalk, and the transverse water permeation pipe communicates the groove with the rainwater port. The sidewalk pavement structure has good water permeating, storing and discharging functions, can effectively prevent water accumulation on the surface of the sidewalk and can relieve pressure of the municipal water discharging system under extreme raining conditions to certain extent; rainwater is avoided permeating into roadbeds, so that long-time stability of the roadbeds is guaranteed; water permeability and air permeability of the sidewalk pavement structure can be improved, and urban 'heat island effect' is relieved to certain content.

Description

technical field [0001] The invention relates to an urban sidewalk surface structure, in particular to a water-permeable, water-storage and drainage sidewalk surface structure. Background technique [0002] With the acceleration of urbanization, people's requirements for the living environment are gradually increasing, and ecological city construction has gradually become an indispensable part of the urban construction process. However, in the past, during the construction of urban sidewalks, a large number of water-blocking materials were used to cover the ground, which reduced the water permeability and air permeability of the pavement structure, and caused a certain negative impact on the ecological environment around the city. Under extreme rainfall conditions, it is easy to cause overloading of municipal drainage facilities, resulting in urban waterlogging. Based on the above reasons, it is of great practical significance to study the pavement structure of permeable, wa...

AI Technical Summary

Problems solved by technology

However, the above-mentioned permeable pavement structure puts higher requirements on the construction technology and at the same time allows rainwater to finally infiltrate the soil foundation, which poses a greater threat to the stability of the road structure

Therefore, for the existing permeable pavement structure, the most urgent problem to be solved at this stage is how to collect the infiltrated rainwater to prevent rainwater from infiltrating the soil foundation and negatively affecting the stability of the soil foundation

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