Sponge city ecological square road subgrade structure

A sponge city and road technology, applied in the field of garden road engineering, can solve the problems of reducing the service life of urban square pavement, water corrosion damage, and the inability of water to be quickly discharged.

Pending Publication Date: 2018-05-08
GUANGZHOU GREENING CO
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  • Description
  • Claims
  • Application Information

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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

Method used

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  • Sponge city ecological square road subgrade structure

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Embodiment Construction

[0014] Reference figure 1 The road subgrade structure of the sponge city ecological square of the present invention includes a road surface layer 10 and a road base layer 20. The road surface layer 10 is composed of permeable bricks. The road base layer 20 includes a permeable base layer 21 and an impermeable base layer 22 spaced up and down. Between the permeable base 21 and the impervious base 22, a plurality of vertical drainage collection wells 23 are provided and backfilled to form a subgrade soil layer 24. The permeable base 21 is made of permeable concrete, and the impervious base 22 is made of impervious concrete. Pouring structure, the vertical drainage collection well 23 is filled with crushed gravel, rainwater permeates through the road surface 10 and penetrates into the permeable base layer 21. The accumulated water in the permeable base layer 21 can continue to seep down or horizontally seep, and the seepage accumulation The water is collected and collected by the ...

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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 ...

Claims

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Application Information

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IPC IPC(8): E01C15/00E01C5/04E01C3/00E01C11/22E03F5/10E03B3/02E03F1/00A01G25/06
CPCA01G25/06E01C3/00E01C5/04E01C11/225E01C15/00E03B3/02E03F1/00E03F5/10Y02A20/108
Inventor 王立圆汤俊杰谢玄业陈韵
Owner GUANGZHOU GREENING CO
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