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Novel anti-cracking asphalt concrete pavement structure and construction method

A technology of asphalt concrete and pavement structure, which is applied to the coagulation pavement, roads, roads and other directions of on-site paving, can solve problems such as pavement structure damage and road use function decline, achieve long service life, convenient transportation and construction, stable Sex-enhancing effects

Inactive Publication Date: 2021-07-27
HUITONG ROAD & BRIDGE CONSTR GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Many asphalt concrete pavements in my country have reached or exceeded the design service life. Due to construction and traffic volume and other reasons, the problem of reflective cracks has become more and more serious, resulting in further damage to the pavement structure and a serious decline in the function of the road.

Method used

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  • Novel anti-cracking asphalt concrete pavement structure and construction method
  • Novel anti-cracking asphalt concrete pavement structure and construction method
  • Novel anti-cracking asphalt concrete pavement structure and construction method

Examples

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Embodiment 1

[0034] refer to Figure 1-5 As shown, the present embodiment provides a novel anti-cracking asphalt concrete pavement structure, including a surface course, a base course and a cushion course laid from top to bottom; 6. A glass fiber cloth 3 is laid between the upper base 4 and the surface layer, and a geocell 11 is arranged inside the upper base 4 and the lower base 5;

[0035] Geocell 11 is a triangular structure in top view, and the vertices of adjacent triangular structures coincide. Geocell 11 includes several geogrids 10 , and locking pins 12 are detachably connected to opposite sides of geogrid 10 .

[0036] In the present invention, a geocell 11 is arranged inside the upper base 4 and the lower base 5 and the geocell 11 is arranged in a triangular structure, and the stability of the triangular structure is used to improve the stability of the geocell 11, and the geocell 11 makes the upper The materials in the base layer 4 and the lower base layer 5 are divided into mu...

Embodiment 2

[0053] refer to Image 6 As shown, the difference between the anti-cracking asphalt concrete pavement structure of this embodiment and the first embodiment is that the geocells 11 of the upper base 4 and the geocells 11 of the lower base 5 are arranged alternately, and the outer wall of the locking pin 12 is provided with Several anti-off grooves 1202, the lower end of the snap-in groove does not pass through the lower end of the snap-in block 1201. After the upper base layer 4 and the lower base layer 5 are compacted, the snap-in pin 12 is placed between the upper base layer 4 and the lower base layer under the action of the anti-off groove 1202. The vertical position in the base layer 5 is more stable. When the upper base layer 4 and the lower base layer 5 are pressed down by the vehicle on the road, the locking pin 12 provides an upward force for the geogrid 10, so that the geocell 11 is the upper The base layer 4 and the lower base layer 5 provide a flexible resistance, th...

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Abstract

The invention relates to the technical field of highway pavements, in particular to a novel anti-cracking asphalt concrete pavement structure and a construction method. The novel anti-cracking asphalt concrete pavement structure comprises a surface layer, a base layer and a cushion layer which are laid from top to bottom, wherein the base layer comprises an upper base layer, a lower base layer and a subbase layer which are laid from top to bottom, glass fabric is laid between the upper base layer and the surface layer, and geocells are arranged in the upper base layer and the lower base layer; and the overlook shape of the geocell is a plurality of triangular structures, the vertexes of the adjacent triangular structures coincide, the geocell comprises a plurality of pieces of geocell cloth, and the two opposite sides of the geocell cloth are detachably connected with clamping pins. The service life of the road is prolonged by improving the structure of the asphalt concrete pavement, meanwhile, the use comfort of a road user can be improved, and energy and funds are saved.

Description

technical field [0001] The invention relates to the technical field of highway pavement, in particular to a novel anti-crack asphalt concrete pavement structure and a construction method. Background technique [0002] Asphalt concrete pavement is widely used, and has the advantages of high comfort, low noise, easy construction and fast repair speed. However, the temperature stability is poor and cracks are prone to occur. Differences in settlement are likely to occur at the joints between bridge culverts and subgrades, and at the joints between new roads and old roads, and the temperature shrinkage cracks of the cement-stabilized base are also easily reflected to the road surface. With the continuous development and progress of science and technology, to ensure the service life of roads, the research of new materials and new processes for pavement anti-cracking technology is becoming more and more important. [0003] Due to the great advantages of asphalt concrete pavement,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01C7/18E01C3/00E01C3/04
CPCE01C3/00E01C3/04E01C7/18E01C7/185
Inventor 魏传勇刘明阳钱程时文莲黄威张若谋李爽李熙洋李旭李岩李志远刘欢欢刘晴枝刘硕马建兵
Owner HUITONG ROAD & BRIDGE CONSTR GROUP
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