The treatment method of the junction of the expressway reconstruction and expansion project

A technology for highways and treatment methods, applied to roads, roads, buildings, etc., to achieve the effects of increasing shear resistance, reducing settlement, and reducing settlement

Active Publication Date: 2018-06-29
崔宇鹏 +9
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Problems solved by technology

[0002] With the rapid development of our country's social economy, automobiles have become an indispensable means of transportation for human society, and with the increasing number of vehicles, most of the existing expressways can no longer meet the growing traffic needs of the society. For this reason, It is imperative to upgrade the original highway

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  • The treatment method of the junction of the expressway reconstruction and expansion project
  • The treatment method of the junction of the expressway reconstruction and expansion project
  • The treatment method of the junction of the expressway reconstruction and expansion project

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Embodiment Construction

[0028] The present invention will be described in detail below in conjunction with the accompanying drawings, so that those of ordinary skill in the art can implement it after referring to this specification.

[0029] Such as figure 1 with figure 2 As shown, a processing method for the junction of a highway reconstruction and expansion project mainly includes the following steps:

[0030] Step 1. Measure and loft the position of the original roadbed 1 to be widened, mark the position to be widened, and set up slope 2 step by step along the edge of the original roadbed 1 so that the edge of the original roadbed 1 is stepped. The surface of the step is set as a slope that slopes downwards from the edge of the original roadbed 1 toward the center of the original roadbed 1, the angle between the slope and the horizontal plane is 10-15°, and the vertical height of the slope 2 at each level is 1- 2 meters, width 1-2 meters.

[0031] Step 2. Lay the first geogrid 3 with a width of 2-3 met...

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Abstract

The invention discloses a processing method of highway reconstruction and extension project joint part. The processing method is characterized in that the slope angle of an original roadbed is utilized to build a slope step by step, the slope is set to be a slope which downwardly inclines from the edge of the original roadbed to the central direction of the original roadbed, a geogrid and reinforcing ribs are laid on each step of the slope, layer-by-layer compaction is performed to obtain a new roadbed, and accordingly the new and old roadbeds can effectively resist longitudinal acting force, the settling inhomogeneity of the new and old roadbeds is balanced, and pavement cracking is avoided; gravel piles are arranged on two sides of the joint of the new and old roadbeds and are coordinated with a support beam and fixing rings, so that the possibility of cracking, caused by transverse acting force, between the new roadbed and the old roadbed is lowered effectively. The method has the advantages that the settling quantity of the widening roadbed and a pavement during highway reconstruction and extension is reduced effectively, cracking between the new pavement and the old pavement is avoided, the construction quality of the highway reconstruction and extension is increased, and service life is prolonged.

Description

Technical field [0001] The invention relates to the field of road construction, and in particular to a method for processing the junction of a highway reconstruction and expansion project. Background technique [0002] With the rapid development of my country’s society and economy, automobiles have become an indispensable means of transportation for human society. With the increasing number of vehicles, most of the existing highways can no longer meet the increasing transportation needs of society. For this reason, It is imperative to upgrade the original expressway. Among them, the widening of the highway subgrade is the key to the renovation project, whether it is design or construction. After the expressway has been opened to traffic for many years, the settlement of the roadbed has been basically completed, and the widened section of the roadbed will inevitably produce cracks represented by longitudinal cracks due to the uneven settlement of the new and old roadbeds, which wi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01C3/04
CPCE01C3/04E01C2201/167
Inventor 崔宇鹏严默非常文洁杨建芳豆晓娟谷静芬董明月陈晓亮刘二丽雷佳
Owner 崔宇鹏
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