Repair method for damaged pavement around well lid

A repair method and manhole cover technology are applied in the field of traffic road maintenance, which can solve the problems of low efficiency and high construction cost, and achieve the effects of simple operation, fast construction, and solving subsidence and cracking.

Active Publication Date: 2015-07-01
北京中科安途交通科技有限公司
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

Construction with hot mix, high construction cost and low efficiency

Method used

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  • Repair method for damaged pavement around well lid

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Embodiment Construction

[0024] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0025] The repair method of the present invention to the damaged pavement around the manhole cover comprises the following steps:

[0026] a. Pretreatment of the damaged pavement area: crush the pavement with the damaged structure around the manhole cover to form recycled aggregates with a maximum nominal particle size of 10cm; distribute the crushed recycled aggregates evenly and vibrate to a dense and stable state to form a recycled aggregate material area; dry the...

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Abstract

The embodiment of the invention discloses a novel repair method for a damaged pavement around a well lid. The repair method comprises the following steps: a, crushing the damaged pavement around the well lid to form recycled aggregate, vibrating the recycled aggregate to be a compact and stable state and then drying the recycled aggregate; b, pouring a uniformly-mixed liquid binding material to the recycled aggregate zone and the gap between the recycled aggregate zone and the original pavement; c, mixing the liquid binding material with single-diameter round sand at a predetermined mass ratio to form a mixture, pouring the mixture to the surface of the recycled aggregate zone, and screeding the mixture with a scraper to form a mixture layer, wherein the poured mixture layer is slightly lower than the top surface of the well lid; d, when the mixture layer is cured, uniformly spreading a layer of fine aggregate on the upper surface of the mixture, wherein the fine aggregate layer is as high as the top surface of the well lid; and e, after the fine aggregate is distributed, maintaining the pavement for 2 hours to be opened to traffic. By adopting the repair method, the pavement structure can be effectively reinforced, and quick construction can be realized without influencing road operation.

Description

technical field [0001] The invention belongs to the technical field of traffic road maintenance, and in particular relates to a method for repairing damaged road surfaces around manhole covers. Background technique [0002] During the construction of asphalt pavement on municipal roads, it is usually necessary to reserve areas for different types of underground manhole covers. In practice, most of the asphalt pavements near underground manhole covers are seriously damaged, causing subsidence, cracks, pits and other diseases, and causing water damage to the pavement. The reasons are analyzed as follows: ①During the construction of asphalt pavement, the asphalt mixture around the manhole cover is not easy to compact, and the degree of compaction is not up to standard, which leads to insufficient structural strength of the asphalt pavement around the manhole cover; ②Underground wells are generally concrete structures, and the depth From a few meters to tens of meters, the post...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01C7/35E01C11/00E02D29/14C04B26/16C08G18/48
CPCC04B26/16C08G18/10C08G18/3814C08G18/4804C08G18/6685E01C7/187E01C2201/065E02D29/14
Inventor 王畅铭姚亮
Owner 北京中科安途交通科技有限公司
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