Intersection rubber asphalt anti-rutting pavement detection and design method based on ground penetrating radar

A technology of rubber asphalt and ground penetrating radar, which is applied to the coagulation pavement, roads, roads and other directions of on-site paving, can solve the problems of low efficiency and manpower consumption, improve the structural strength, prevent cracking and breaking, overcome the Effects of limited sample size

Active Publication Date: 2021-06-01
HEFEI UNIV OF TECH
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Problems solved by technology

[0005] The purpose of the present invention is to solve the problem of labor-intensive and low efficiency in the prior art, ...

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  • Intersection rubber asphalt anti-rutting pavement detection and design method based on ground penetrating radar
  • Intersection rubber asphalt anti-rutting pavement detection and design method based on ground penetrating radar
  • Intersection rubber asphalt anti-rutting pavement detection and design method based on ground penetrating radar

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Embodiment 1

[0054] A detection and design method of rubber asphalt anti-rutting pavement at intersections based on ground penetrating radar. The specific design steps are as follows:

[0055] Step 1. According to the characteristics of the traffic flow distribution at the intersection, divide the area, because the vehicles on the left-turn lane, the through lane and the bus lane will repeatedly stop and start operations, which will cause great damage to the road surface, while the vehicles on the right-turn lane Parking is rare, and the damage to the road surface is not great. Therefore, the parking area of ​​left-turning vehicles, straight-going vehicles, and bus parking areas at intersections are divided into "dynamic-static load" areas, and the right-turning lanes are divided into "Dynamic load" area, based on the division of this area, different renovation schemes are designed, which are highly targeted and can reduce waste of resources;

[0056] Step 2. Carry out the core drilling sa...

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Abstract

The invention discloses an intersection rubber asphalt anti-rutting pavement detection and design method based on a ground penetrating radar, and the method comprises the steps: 1, dividing a left-turning vehicle parking region, a straight-going vehicle parking region and a bus parking region into dynamic-static load regions according to the principle of dynamic and static load separation and in combination with the distribution characteristics of intersection traffic flow; and dividing a right-turning lane into a dynamic load area; and 2, measuring the thickness of the residual road surface at the damaged parts by utilizing a reflection coefficient method at the damaged parts of the base layers and the damaged parts of the surface layers of the dynamic-static load areas and the dynamic load areas. The road surface thickness is calculated based on the ground penetrating radar, the problems that the number of samples is limited, the road surface is seriously damaged and the whole damage range cannot be measured in a core drilling sampling method are solved, meanwhile, a corresponding transformation scheme is set according to the non-uniform coefficient range, and the defects that traditional intersection transformation, partial damage and overall removal are needed, the workload is large; and the repairing effect is poor are overcome.

Description

technical field [0001] The invention relates to the technical field of road engineering pavement structures, in particular to a ground-penetrating radar-based detection and design method for rubber asphalt anti-rutting pavement at intersections. Background technique [0002] There are a large number of rubber asphalt pavement intersections on national and provincial arterial highways, and the durability of the pavement is crucial to the operation quality of the entire arterial road. The problem of vehicle channelization and heavy load and overload has become prominent, and rutting has become one of the main damage forms of rubber asphalt pavement in my country, and it also induces further damage to the pavement. The existence of ruts seriously shortens the service life of the pavement, reduces the service level of the expressway, and constitutes a safety hazard of vehicle sideslip in rainy days. The "Assessment Standard" stipulates the road rutting detection method for expr...

Claims

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Application Information

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IPC IPC(8): E01C7/32E01C11/24E01C23/01E01C1/02G06F17/18
CPCE01C7/325E01C11/24E01C23/01E01C1/02G06F17/18
Inventor 刘凯丁伟伦王大为罗桑童健航笪艺徐晓倩张玄成黄沐阳许培欣
Owner HEFEI UNIV OF TECH
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