A permeable pavement based on the concept of sponge city

Abstract

The invention discloses a permeable pavement based on a sponge city concept. The permeable pavement comprises traffic lanes and pedestrian ways. The traffic lanes comprise a surface layer, a base layer, a filter isolated layer, a permeable cushion and a subgrade from top to bottom in sequence; the pedestrian ways comprise permeable road surface bricks, a permeable cement concrete layer, a macadambase layer, a filter isolated layer and a base layer from top to bottom in sequence, boundaries between the traffic lanes and the pedestrian ways comprise curbs, permeable cement concrete faces and impermeable cement concrete faces from top to bottom in sequence, wherein the lower ends of the curbs extend to the base layer and the macadam base layer, the lower ends of the impermeable cement concrete faces are aligned with the lower end of the filter isolated layer. The permeable pavement based on sponge city concept has the advantages of that the water storage function of the permeable pavement structure is improved, the drainage pressure of municipal pipe network is relieved, occurrence of city water-logging is reduced and hydrological cycle of urban ecology is promoted.

Description

technical field [0001] The invention belongs to the technical field of road engineering, in particular to a permeable road surface based on the concept of sponge city. Background technique [0002] The continuous advancement of urbanization in my country has led to structural changes in land use in urban development, the proportion of permeable underlying surfaces is getting smaller and smaller, the pressure on urban rainwater drainage systems is increasing, and urban waterlogging caused by urban rainstorms is becoming more and more serious. more. According to data from the Ministry of Housing and Urban-Rural Development, from 2007 to 2015, more than 360 cities across the country suffered from waterlogging. The frequent waterlogging incidents in China have inspired us that the urban waterlogging problem cannot be solved well only by improving the urban drainage system. [0003] In response to the increasingly frequent urban flood disasters and water resources and water envir...

AI Technical Summary

Problems solved by technology

Through the search of existing technologies, it is found that most of the permeable pavement structures that have been publicly published in domestic and foreign publications, have been publicly used in China, or are known to the public in other ways are road surface water that is introduced into the drainage facilities at the surface layer or the base layer. The discharge does not enter the roadbed, which increases the pressure of the municipal pipe network water discharge and causes a waste of water resources, which is contrary to the concept of sponge city

The water storage and infiltration capacity of the existing permeable pavement structure that allows road surface water to enter the pavement structure cannot meet the needs of reducing runoff and reducing the drainage pressure of the municipal pipe network in rainy weather

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