Nanometer asphalt concrete urban road pavement structure based on sponge city

Abstract

The invention discloses a nanometer asphalt concrete urban road pavement structure based on a sponge city. The nanometer asphalt concrete urban road pavement structure is characterized in that a roadis separated into a water permeable area and a water non-permeable area along the transverse direction; the water permeable area is positioned between the water non-permeable area and a greening belt;curb is arranged between the water permeable area and the greening belt; the water non-permeable area comprises a soil base layer I, a gravel bedding layer I, a cement stabilized macadam base layer I, a lower surface layer I and an upper surface layer I from bottom to top under a motor vehicle lane; the water permeable area comprises a soil base layer II, a waterproof layer, a water storage layer, a gravel bedding layer II, a cement stabilized macadam base layer II, a lower surface layer II and an upper surface layer II from bottom to top under a non-motor vehicle lane; the water permeable area and the water non-permeable area are separated by an anti-seepage cement box body; an anti-seepage cement blocking plate is arranged under the curb and is used for isolating the water permeable area from the greening belt; a rainwater purifying system is arranged under the greening belt. The nanometer asphalt concrete urban road pavement structure has the advantages that the rainwater drainagespeed of the urban road is improved, the total rainwater drainage amount is increased, a large amount of rainwater is collected and reutilized, and the problems of water accumulation, vehicle track, particle falling and the like on the road pavement are relieved.

Description

technical field [0001] The invention relates to the field of urban road pavement, in particular to a nano asphalt concrete urban road pavement structure based on sponge city. Background technique [0002] With the rapid development of social economy, road planning as one of the infrastructures is also developing rapidly. The society has higher and higher requirements for roads with high quality and high service performance. The safety, comfort and speed of driving have become the basic needs of people. At present, the asphalt pavement of motor vehicle lanes on urban roads has problems such as high temperature sensitivity, poor thermal stability and low temperature crack resistance, and poor fatigue resistance durability, which can easily cause rutting, wrapping, cracking and other diseases. And when there is heavy rainfall, the drainage of the entire road surface is not smooth, resulting in slow drainage speed, prone to water accumulation on the road, waterlogging in the cit...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problems of inconvenient drainage, slow speed, low rainwater utilization rate, etc. when urban roads encounter heavy rainfall, and the road surface structure of motor vehicles is prone to rutting and pitting, the present invention provides a nano-asphalt concrete urban road pavement based on sponge city The purpose of the structure is to increase the speed of rainwater drainage on urban roads and increase the total amount of rainwater drainage, so as to collect a large amount of rainwater and use it, and reduce road surface water, rutting, particle shedding, etc.

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