Sponge city ecological square road subgrade structure

Abstract

The invention discloses a sponge city ecological square road subgrade structure. The sponge city ecological square road subgrade structure comprises a road surface course and a road base course; the road base course comprises a permeable base course and an impermeable base course which are spaced at the top and the bottom; a plurality of vertical water drainage and collecting wells are arranged between the permeable base course and the impermeable base course at intervals and are back-filled to form a subgrade soil course; the water drainage and collecting wells are arranged and distributed ina stepped manner from the middle to the two sides; the adjacent vertical water drainage and collecting wells are connected with each other through transverse water drainage pipes; the vertical waterdrainage and collecting wells on the two outermost sides are connected with an external drainage facility through transverse water drainage pipes; a three-dimensional drainage system is formed by using the permeable base course and the vertical water drainage and collecting wells; permeable accumulated water flows into each vertical water drainage and collecting well through the permeable base course; and the accumulated water in each vertical water drainage and collecting well is drained outside through the transverse water drainage pipes; therefore, a purpose of rapidly draining the accumulated water is achieved and the accumulation of the accumulated water is avoided.

Description

Technical field [0001] The invention relates to the technical field of garden road engineering, in particular to a road subgrade structure of a sponge city ecological square. Background technique [0002] At present, according to the existing research on the pavement damage of urban squares, the water entering the pavement structure is the main reason for causing or aggravating the pavement damage. After the accumulated water seeps into the pavement base layer, it cannot be discharged quickly, and the corrosion damage of the accumulated water occurs, which reduces the city. The service life of the pavement of the square. Therefore, in the construction and maintenance of urban square roads, the drainage design of the pavement is very important. How to quickly drain the water that has penetrated into the pavement has an important impact on the performance and service life of the pavement. Summary of the invention [0003] The technical problem to be solved by the present invention ...

AI Technical Summary

Problems solved by technology

[0002] At present, according to the existing research on pavement damage in urban squares, the water entering the pavement structure is the main cause of causing or aggravating pavement damage. The accumulated water seeps into the pavement base and cannot be discharged quickly, resulting in corrosion damage caused by accumulated water, reducing urban Service life of square pavement

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