Permeable anti-cracking road structure and construction method thereof

A road structure, permeable cement technology, applied in the field of traffic engineering, to achieve the effects of reduced cost, thin thickness and strong anti-rutting ability

Pending Publication Date: 2020-04-28
HUNAN UNIV OF SCI & ENG
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0021] In order to solve the above-mentioned technical problems existing in the existing road structure, the present invention provides a water-permeable and anti-crack road structure and its construction method that can prevent the generation of cracks and is permeable

Method used

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  • Permeable anti-cracking road structure and construction method thereof

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Embodiment Construction

[0040] The present invention will be further described below in conjunction with accompanying drawing.

[0041] see figure 1 , a permeable and anti-crack road structure, from top to bottom is the permeable wear layer 1, the geocell open-graded crushed stone permeable cement concrete upper base 3, the coarse sand lower base in the geocell 4, the geocell Plain soil subbase 5 and road bed 6 . The thickness of the water-permeable wear layer layer 1 is generally 4.0-5.0 cm. The water-permeable abrasion surface layer 1 adopts 5cm thick SMA open-graded asphalt mixture, the thickness of the geocell open-graded crushed stone permeable cement concrete upper base 3 is 10cm, and the coarse sand in the geocell lower base 4 is composed of coarse sand in the geocell. The sand 42 and the medium coarse sand 41 laid on the top of the coarse sand 42 in the geocell are composed, and the height of the coarse sand 42 in the geocell is equal to the height of the medium coarse sand 41 and is 10 cm....

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Abstract

The invention discloses a water-permeable anti-cracking road structure and a construction method thereof. The water-permeable anti-cracking road structure sequentially comprises a water-permeable abrasion layer surface layer, a geocell open graded broken stone water-permeable cement concrete upper base layer, a geocell medium-coarse sand lower base layer, a geocell plain soil subbase layer and a roadbed from top to bottom. The pocket constraint effect of the geocell enables the soil composite elasticity modulus of the geocell to be increased exponentially, and meanwhile, the lateral deformation of the roadbed and the generation and development of cracks can be powerfully limited; and the thick plate effect generated by overlapping the three geocell structure layers guarantees that the roadbed has enough bending rigidity so as to reduce differential settlement of the road surface. The road structure belongs to a permeable pavement, has the advantages of environmental friendliness, modular design, convenience and quickness in construction, low construction cost and the like, can effectively avoid pavement cracks, high-temperature ruts and other diseases, and greatly enhances the driving safety and driving comfort in rainy days. The road structure and the method are suitable for various urban roads, grade highways, sports fields, squares, runways and other projects.

Description

technical field [0001] The invention relates to road engineering in the field of traffic engineering, in particular to a water-permeable and crack-resistant road structure and a construction method thereof. Background technique [0002] With the rapid development of economic construction and the acceleration of urban construction, the surface of modern cities is gradually covered by reinforced concrete houses and impermeable pavement. In urban construction, the design and hardening of most urban roads, parks, courtyards and public squares mainly focus on technical performance indicators such as durability and strength and visual aesthetic requirements, so impermeable densely graded concrete and stone slabs Become the pavement structure of choice. Although this kind of paving is simple and low in cost, it has brought a great negative impact on the ecological environment of the city. [0003] First of all, this impermeable and airtight pavement significantly reduces the rain...

Claims

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Application Information

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IPC IPC(8): E01C11/22E01C7/32E01C3/04
CPCE01C11/226E01C7/32E01C3/04
Inventor 李仁平周基阳令明
Owner HUNAN UNIV OF SCI & ENG
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