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Asphalt pavement repairing method and asphalt pavement structure

A technology for asphalt pavement and road shoulder, which is applied in the field of asphalt pavement structure and asphalt pavement repair, can solve the problems of high-speed traffic impact and long construction time, and achieves the effect of simple construction, convenient material selection and construction time saving.

Inactive Publication Date: 2020-06-05
陕西省高速公路建设集团公司汉宁分公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] On the one hand, the existing local base reinforcement treatment method has the problem of long construction time and great impact on high-speed traffic; on the other hand, since the original pumping location is mostly in the water area of ​​the asphalt road, local base reinforcement treatment is adopted It cannot completely solve the pumping problem in this section. Under the frequent action of vehicle load and frequent water accumulation, pumping phenomenon will still occur around the repaired part

Method used

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  • Asphalt pavement repairing method and asphalt pavement structure
  • Asphalt pavement repairing method and asphalt pavement structure
  • Asphalt pavement repairing method and asphalt pavement structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] At present, the pumping treatment often adopts the local base reinforcement method, but because the original pumping location is mostly in the water area of ​​the asphalt pavement, the local base reinforcement treatment cannot completely solve the pumping problem in this area. Under the action of frequent water accumulation, there will still be pumping phenomenon around the repaired part.

[0031] For this reason, the present embodiment provides a kind of asphalt pavement repairing method, bury hemp rope 100 in the surface course 1 place of asphalt pavement pumping scope, and make the end of hemp rope 100 extend to the road shoulder side slope place, make surface course 1 Seepage is discharged from the road surface, so as to ensure that the repaired part will not be damaged by secondary pumping.

[0032] Concretely, described asphalt pavement patching method, comprises the following steps:

[0033] (1) if figure 1 and 2 As shown, for the grouting part of the road sur...

Embodiment 2

[0039] This embodiment provides an asphalt pavement structure, such as Figure 4 As shown, it includes a base layer 2 and a surface layer 1. A drainage layer is embedded in the surface layer 1. The drainage layer is formed by laying several parallel hemp ropes 100. The ends of the hemp ropes 100 extend to The side slope of the road shoulder to allow the asphalt surface to seep out of the road surface.

[0040] Specifically, the surface layer 1 is provided with several grooves 101 distributed in parallel, and the extending direction of the grooves 101 is set at an angle to the extending direction of the road surface. In this embodiment, the extending direction of the grooves 101 is set The included angle with the center line of the road surface is 60°, the depth of the groove body 101 is 10-12 cm, and the width is 0.4-0.6 cm, but it is not limited thereto.

[0041] In order to make the seepage of the surface layer 1 can be effectively discharged to the shoulder, the end of the...

Embodiment 3

[0045] This embodiment provides an asphalt pavement structure, such as Figure 5 As shown, the difference between embodiment 3 and embodiment 2 is that the angle between the extension direction of the groove body 101 and the centerline of the road surface is 30°.

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Abstract

The invention provides an asphalt pavement repairing method and an asphalt pavement structure, and belongs to the technical field of pavement construction, and is characterized in that hemp ropes areburied at a surface layer in an asphalt pavement pumping range, the end parts of the hemp ropes extend to a road shoulder slope so as to enable asphalt surface layer seepage water to be discharged outof a pavement, and the extension direction of the hemp ropes and the extension direction of the pavement are arranged at an angle. The asphalt pavement structure comprises a base layer and a surfacelayer, a drainage layer is buried in the surface layer, the drainage layer is formed by laying a plurality of hemp ropes which are arranged in parallel, and the ends of the hemp ropes extend to a roadshoulder slope so that water seeping from the surface layer can be drained out of a pavement. According to the repairing method, the seepage water of the asphalt surface layer is discharged out of the pavement by utilizing the pressure resistance, the aging resistance and the siphon drainage effect of the hemp ropes, so that secondary grout pumping damage around the repaired part is effectively avoided, and the grout pumping part of the pavement can be quickly repaired; the pavement structure can effectively avoid the phenomenon of grout pumping.

Description

technical field [0001] The invention belongs to the technical field of road surface construction, and in particular relates to an asphalt pavement repair method. In addition, the invention also relates to an asphalt pavement structure. Background technique [0002] Pumping is a phenomenon in which surface water penetrates into the base layer through the asphalt gravel surface, softening and expanding the base layer, and under the continuous action of vehicle load, fine particles in the base layer are ejected from the gaps in the surface layer. The formation of pumping is caused by rutting. First, small cracks are caused by rutting, and then gradually develop into network cracks under the action of traffic load and water, and finally develop into pumping. [0003] At present, the grouting treatment for high-speed asphalt pavement is mostly local base reinforcement treatment. Specifically, the base and subbase are excavated and replaced with cement-stabilized materials for re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01C7/00E01C11/22E01C11/00
CPCE01C7/00E01C11/005E01C11/226Y02A30/60
Inventor 姚永锋晏飞张红锐李萌刘昊明马斐孙通樊林李菲李红梅何东阳毛靓孙德广闫晓惠
Owner 陕西省高速公路建设集团公司汉宁分公司