Asphalt pavement structure for expressway precast beam field pavement permanent and temporary structure conversion

A technology for asphalt pavement and expressway, which is applied to the condensed pavement, roads, roads and other directions paved on site, can solve the problems of delay in construction period, waste of resources, a lot of manpower, material resources, etc., and achieves extended service life, convenient construction and convenient Modulus transition and the effect of drainage

Inactive Publication Date: 2021-07-09
SICHUAN ROAD & BRIDGE GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method caused a lot of waste of resources, and at the same time digging out the original road surface required a lot of manpower and material resources, and delayed the construction period

Method used

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  • Asphalt pavement structure for expressway precast beam field pavement permanent and temporary structure conversion
  • Asphalt pavement structure for expressway precast beam field pavement permanent and temporary structure conversion
  • Asphalt pavement structure for expressway precast beam field pavement permanent and temporary structure conversion

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0062] Example 1: see figure 1 , figure 2 , a kind of asphalt pavement structure used for the prefabricated beam field pavement of the main road base section, the thickness of the pavement structure is 89cm. The asphalt pavement surface layer is 18cm (the upper, middle and lower layers are 4cm, 6cm, and 8cm respectively), the cement stabilized macadam base is 28cm, the beam field cement concrete pavement is 22cm, and the graded macadam base is 21cm.

Embodiment 2

[0063] Example 2: see figure 1 , figure 2 , a kind of asphalt pavement structure used for the prefabricated beam field pavement of the subgrade section of the service area, the construction method is the same as that of Example 1, and the thickness of the pavement structure is 81cm. The asphalt pavement surface layer is 10cm (the upper and lower layers are 4cm and 6cm respectively), the cement stabilized macadam base is 28cm, the beam field cement concrete pavement is 22cm, and the graded macadam base is 21cm.

Embodiment 3

[0064] Embodiment 3: see figure 1 , figure 2 , a kind of asphalt pavement structure used for the prefabricated beam field pavement of the main road base section, the construction method is the same as that of Example 1, and the thickness of the pavement structure is 81cm. The surface layer of the asphalt pavement is 16cm (the upper, middle and lower layers are 4cm, 6cm, 6cm respectively), the cement stabilized macadam base is 25cm, the beam field cement concrete pavement is 22cm, and the graded macadam base is 18cm.

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PUM

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Abstract

The invention discloses an asphalt pavement structure for expressway precast beam field pavement permanent and temporary structure conversion. The structure is characterized in that: the asphalt pavement structure comprises an asphalt pavement and a modified asphalt synchronous gravel seal coat; a cement stabilized macadam base layer; a prefabricated beam yard concrete pavement; and a prefabricated beam field graded broken stone base layer; wherein the asphalt pavement is divided into an asphalt pavement upper surface layer, an asphalt pavement middle surface layer, and an asphalt pavement lower surface layer. The invention particularly relates to a pavement structure for arranging a precast beam yard in a main line or a service area of an expressway, in particular to a pavement structure for arranging a precast beam yard in a main line or a service area of the expressway, which is characterized in that after the beam yard is used, an original pavement is fully utilized, permanent and temporary structure conversion is performed, a corresponding structure is paved on the original pavement after the original pavement is correspondingly treated, and a new permanent pavement structure for expressway driving is formed.

Description

technical field [0001] The invention relates to the field of asphalt pavement structures, in particular to an asphalt pavement structure used for permanent structure conversion of expressway prefabricated beam field pavement. Background technique [0002] The bridge-tunnel ratio of highways in mountainous areas is high, and the demand for construction of prefabricated beam yards is large. However, the construction land of mountainous highways is often limited, especially limited by terrain conditions, and the range of routes suitable for building bridges is less. The beam field is set on the main line of the expressway or the subgrade section of the service area. In order to meet the requirements of use, the prefabricated beam yard generally needs to harden the road surface of the site. The hardened pavement structure of the prefabricated beam field is generally a 15-20cm cement concrete surface layer + 15-20cm cement stabilized crushed stone or graded crushed stone base. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01C7/32E01C7/34
CPCE01C7/32E01C7/34
Inventor 卢伟蒋双全董武斌于志兵刘万春李海清周明凯汪捍东韩斌
Owner SICHUAN ROAD & BRIDGE GRP
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