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Road construction method

A road construction and roadbed technology, applied in the direction of roads, roads, and on-site coagulation pavement, can solve the problems of easy deformation of drainage asphalt pavement, pavement loss, cracks, etc., to improve physical properties, improve high temperature performance, reduce The effect of cost of use

Active Publication Date: 2020-07-31
河南派普建工集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For asphalt mixtures with the same particle size, the tensile strength of graded asphalt concrete is only about half of that of densely graded asphalt concrete, and the insufficient strength of the mixture will cause problems such as loss, cracks and deformation of the pavement
[0006] The problem that the drainage asphalt pavement is easily deformed has not been well solved in the prior art

Method used

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  • Road construction method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] A road construction method, comprising the steps of:

[0043] S1 Site leveling treatment to form roadbed;

[0044] Before construction, the shape change of the site should be estimated in advance, the ground elevation before dynamic compaction should be measured, and the construction site should be leveled by bulldozer operations. Before construction, the precise location and elevation of underground pipelines and other underground structural facilities in the dynamic compaction construction site should be marked in combination with urban planning. When performing dynamic compaction construction, construction above underground facilities should be avoided as much as possible. If construction is carried out on top of underground facilities, possible consequences should be evaluated in advance, and corresponding treatment measures should be formulated to prevent serious damage to underground facilities during construction.

[0045] S2 laying cushion and precipitation tr...

Embodiment 2

[0056] A road construction method, comprising the steps of:

[0057] S1 Site leveling treatment to form roadbed;

[0058] Before construction, the shape change of the site should be estimated in advance, the ground elevation before dynamic compaction should be measured, and the construction site should be leveled by bulldozer operations. Before construction, the precise location and elevation of underground pipelines and other underground structural facilities in the dynamic compaction construction site should be marked in combination with urban planning. When performing dynamic compaction construction, construction above underground facilities should be avoided as much as possible. If construction is carried out on top of underground facilities, possible consequences should be evaluated in advance, and corresponding treatment measures should be formulated to prevent serious damage to underground facilities during construction.

[0059] S2 laying cushion and precipitation tr...

Embodiment 3

[0070] A road construction method, comprising the steps of:

[0071] S1 Site leveling treatment to form roadbed;

[0072] Before construction, the shape change of the site should be estimated in advance, the ground elevation before dynamic compaction should be measured, and the construction site should be leveled by bulldozer operations. Before construction, the precise location and elevation of underground pipelines and other underground structural facilities in the dynamic compaction construction site should be marked in combination with urban planning. When performing dynamic compaction construction, construction above underground facilities should be avoided as much as possible. If construction is carried out on top of underground facilities, possible consequences should be evaluated in advance, and corresponding treatment measures should be formulated to prevent serious damage to underground facilities during construction.

[0073] S2 laying cushion and precipitation tr...

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Abstract

The invention discloses a road construction method, which comprises the steps of S1, leveling a site to form a roadbed; S2, laying a cushion layer, and conducting precipitation treatment; S3, laying alayer of asphalt mixture on the cushion layer; and S4, compacting the road through rolling equipment. The modified asphalt mixture is adopted, after the modified asphalt mixture is compacted, the porosity of the modified asphalt mixture reaches 23.1%, and a good pavement drainage effect is achieved. Meanwhile, after the asphalt is modified, the main physical properties, including softening point,ductility and needle penetration, of the asphalt foundation are improved. The problem that the pavement is easy to deform due to high porosity is well solved at the same time.

Description

technical field [0001] The invention belongs to the technical field of construction, and in particular relates to a road construction method. Background technique [0002] With the continuous advancement of infrastructure construction, the road construction industry has developed vigorously. According to the statistical bulletin issued by the Ministry of Transport of my country, as of the end of 2018, the national road mileage has reached 4.85 million kilometers, of which the total mileage of expressways has reached 143,000 kilometers, ranking first in the world. In order to adapt to the requirements of the new era, my country's requirements for the quantity of roads have gradually shifted to the quality level. In recent years, making roads with high quality, long service life and functionalization has become a research hotspot. [0003] In modern cities, traditional roads are impervious to water, coupled with imperfect drainage systems, large-scale water accumulation is l...

Claims

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Application Information

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IPC IPC(8): E01C7/18E01C7/22
CPCE01C7/182E01C7/22
Inventor 马秋柱王盛旗丁超张鹏辉郜鹏举王敏辉陈祥路付朝刘宾赵伏军王永锋张保金
Owner 河南派普建工集团有限公司
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