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A fully permeable pavement structure suitable for large slopes

A technology of permeable pavement and large slope, which is applied to the coagulation pavement, roads, roads and other directions paved on site. , the effect of increasing the vertical penetration rate

Active Publication Date: 2021-11-30
HOHAI UNIV
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Problems solved by technology

[0004] Purpose: In order to overcome the deficiencies in the prior art, the present invention provides a fully permeable pavement structure suitable for large slopes, which solves the problem of low water infiltration at the bottom of the slope and the problem of the downstream road surface of the slope due to the increase in water volume of the existing permeable pavement. The problem of road surface water

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  • A fully permeable pavement structure suitable for large slopes
  • A fully permeable pavement structure suitable for large slopes
  • A fully permeable pavement structure suitable for large slopes

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Embodiment Construction

[0021] The present invention will be further described below in conjunction with the accompanying drawings.

[0022] Such as figure 2 , 3 As shown, a fully permeable pavement structure suitable for large slopes includes a permeable surface layer 1, a water storage base layer 2, a subbase layer 3, a geotextile 5 and a soil foundation 4. The soil foundation 4 is a ladder structure, and each step surface of the soil foundation 4 is laid with a subbase 3, and all the subbase 3 also form a ladder structure; the ratio of the width and length of the soil foundation 4 of each permeable roadbed unit is equal to the road surface slope; The soil foundation 4 is a natural compacted foundation, and the subbase 3 is a water-permeable graded crushed stone. The geotextile 5 is placed between the subbase 3 and the soil foundation 4, and the geotextile 5 is a permeable geogrid cloth, which can not only improve the bearing capacity of the soil, but also play a filter effect to prevent the soi...

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Abstract

The invention discloses a fully permeable pavement structure suitable for large slopes, comprising a permeable surface layer, a water storage base, a subbase and a soil foundation; Earth cloth is arranged between the base and sub-bases, and all the sub-bases also form a ladder structure; the water storage base is laid on the sub-base, the top surface of the water storage base is a slope, the permeable surface layer is laid on the water storage base, and the permeable surface layer The top surface of the top surface is sloped; water barriers are set between the stepped surfaces of adjacent subbases, the bottom of the water barriers is in contact with the upper surface of the higher subbase, and the top is located in the permeable surface layer; the downward trend of all ladder structures and slopes is consistent . The fully permeable pavement structure provided by the present invention solves the problem of low water infiltration in the slope section of the existing permeable pavement through the design of the stepped water storage base and the water retaining plate, and the problem of pavement water accumulation on the road surface downstream of the slope due to the increase in water volume .

Description

technical field [0001] The invention relates to a fully permeable pavement structure suitable for large slopes, and belongs to the technical field of pavement structures. Background technique [0002] In recent years, with the proposal of the "sponge city" concept, various cities and regions in my country have responded positively and adopted various sponge measures to transform and construct existing sites. Considering that the proportion of road land in urban construction land can reach 15%-20%, the water permeability of municipal road pavement is a key part of sponge city construction. [0003] Fully permeable pavement is suitable for sidewalks, non-motor vehicle lanes and landscape hard ground. Rainwater can seep down along its permeable surface layer, water storage base, and subbase all the way, and finally seep into the roadbed soil. Existing practical experience shows that the permeable performance of this permeable pavement is relatively good in areas with flat terr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01C11/22E01C7/32
CPCE01C7/325E01C11/225E01C11/226Y02A30/60
Inventor 陈徐东谢文剑李威彤程熙媛胡良鹏
Owner HOHAI UNIV
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