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Municipal road reconstruction engineering asphalt pavement lap joint construction method and lap joint structure

A technology for asphalt pavement and municipal roads, applied in the field of municipal engineering, can solve problems such as pavement cracking, achieve the effects of preventing pavement cracks, stable performance, and reducing differential settlement and deformation

Inactive Publication Date: 2020-10-16
CHINA MCC20 GRP CORP +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In view of this, the present invention proposes an asphalt pavement lap joint construction method and lap joint structure for municipal road reconstruction projects, aiming to solve the problem of frequent cracking in existing old road widening and reconstruction projects

Method used

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  • Municipal road reconstruction engineering asphalt pavement lap joint construction method and lap joint structure
  • Municipal road reconstruction engineering asphalt pavement lap joint construction method and lap joint structure
  • Municipal road reconstruction engineering asphalt pavement lap joint construction method and lap joint structure

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Embodiment Construction

[0020] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art. It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0021] Method example:

[0022] see figure 1 , which is a flow chart of a method for lapping asphalt pavement in a municipal road renovation project provide...

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Abstract

The invention provides a municipal road reconstruction engineering asphalt pavement lap joint construction method and a lap joint structure. The lap joint construction method comprises the following steps that the edge of an old road surface is milled into a stepped structure, and all layers of milled surfaces are cleaned; all old pavement step layers of the old pavement are sequentially treated according to a first preset mode, and the first preset mode comprises the steps that gravels are laid on one sides of the old pavement step layers to form gravel base layers, after the gravel base layers are rolled, the gravel base layers are maintained, and floating ash and impurities on the surfaces of the gravel base layers are removed; the old asphalt step layers of the current asphalt pavementare sequentially treated according to a second preset mode, and the second preset mode comprises the steps that asphalt concrete is laid on one sides of the old asphalt step layers to form an asphaltconcrete base layer, the asphalt concrete base layer is rolled, and then the surface of the asphalt concrete base layer is cleaned. According to the invention, the new and old asphalt pavement structures are combined and broadened, so that differential settlement and reflection cracks at the joint of the new and old asphalt pavement structures are reduced.

Description

technical field [0001] The invention relates to the technical field of municipal engineering, in particular to an asphalt pavement lap joint construction method and lap joint structure of a municipal road renovation project. Background technique [0002] The reconstruction of old roads refers to the original old roads that do not meet the requirements of technical grades, according to the planning requirements of the transportation network, the original roads are upgraded to the technical grades and technical standards required by the planning, so as to improve their quality of use and traffic capacity. Due to the differences in settlement and deformation between the old and new subgrades, the bottom of the pavement structure layer may be voided, resulting in cracking of the pavement structure, resulting in frequent longitudinal cracks in the pavement of the old road widening and reconstruction projects. Contents of the invention [0003] In view of this, the present inven...

Claims

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Application Information

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IPC IPC(8): E01C7/18E01C3/00
CPCE01C3/00E01C7/18E01C7/187
Inventor 肖明明蔡冬朱朝辉林杰辉谢海高秦贵忠张慧邓坤陈一鸣
Owner CHINA MCC20 GRP CORP
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