Road semi-rigid base layer crack chemical treatment method

A semi-rigid base and road technology, applied in the field of crack treatment, can solve problems such as pumping and potholes, and achieve the effects of small road surface damage, rapid restoration of traffic, and good treatment effects

Inactive Publication Date: 2021-04-09
河南长安交通科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a chemical treatment method for road semi-rigid base cracks, which has the advantages of being able to solve the problem of cracks in semi-rigid bases, and solves the problem that cracks are easy to expand under the impact of vehicle loads and serious problems Problems with pumping and pitting

Method used

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Embodiment

[0022] Embodiment: A method for chemically treating cracks in a road semi-rigid base, comprising the following steps:

[0023] 1) Clean up the gaps, clean up the treated road section, remove the gap filling materials for daily maintenance, use high-pressure air guns to blow off the cracks, and remove the sundries in the cracks, and mark the positions of the cracks on the outside of the road shoulder board, guardrail board and column outside ;

[0024] 2) Radar detection, conduct radar non-destructive detection for moderate, severe longitudinal and transverse cracks in the road section, and judge whether the crack depth reaches the base layer according to the detection results. When the depth reaches the base layer, perform polymer grouting treatment, and determine the position and direction of cracks in the base layer, mark the position of cracks in the base layer on the road surface, and prepare for determining the position of the grouting hole;

[0025] 3) Deflection detect...

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PUM

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Abstract

The invention relates to the technical field of crack treatment, and discloses a road semi-rigid base layer crack chemical treatment method which comprises the following steps: cleaning a crack, cleaning a treated road section, removing a crack pouring material for daily maintenance, blowing the crack by adopting a high-pressure air gun, removing impurities in the crack, and cleaning the crack by adopting a high-pressure air gun, and marking crack positions on the outer sides of the road shoulder plates, the guardrail plates and the outer sides of the stand columns in a classified mode. According to the road semi-rigid base layer crack chemical treatment method, drilling is conducted, hole sites are carefully checked before drilling, an electric hammer drill rod is vertically aligned with the hole sites during drilling, drilling is conducted slowly at a constant speed till the drilling depth meets the design requirements (the filling and soil excavation section is 70 cm, the stone excavation section is 48 cm, and the interchange zone ramp is 58 cm), and drilling is completed, a broom and an air blower are used for cleaning a drilled hole in time, a lower pipe is used for grouting, and the pipe goes down from a grouting hole, so that the damage to the road surface is small, traffic can be quickly recovered, and the treatment effect is good.

Description

technical field [0001] The invention relates to the technical field of crack treatment, in particular to a chemical treatment method for road semi-rigid base cracks. Background technique [0002] The semi-rigid base refers to the base that can be formed into a board and has a certain bending strength paved with inorganic binder stabilized soil. The semi-rigid base material has the advantages of strong bearing capacity, good stability and easy control of construction technology. , is widely used in the pavement structure of high-grade highways. [0003] Cracks are inevitable in the semi-rigid base of the road, which seriously affects the function and life of the road. The existence of cracks makes the rainwater on the road surface inevitably enter the structural layer and subgrade, resulting in a great reduction in the strength of the pavement structural layer and subgrade. Treatment, under the impact of vehicle loads, cracks are easy to expand, and serious pumping and potho...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01C23/09E01C23/01
CPCE01C23/01E01C23/096
Inventor 李照宗杨鲁晓马耀辉蒋进张丽勤韩晓燕范智超蒋勋张铮
Owner 河南长安交通科技发展有限公司
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