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Roadbed reinforcement method

A technology of roadbed and reinforcement, applied in roads, roads, buildings, etc., can solve problems such as increasing the workload of railway maintenance and repair, shortening the service life of the track superstructure, and affecting the safety of train operation

Active Publication Date: 2018-08-03
RAILWAY ENG RES INST CHINA ACADEMY OF RAILWAY SCI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For railways, this disease is particularly serious, because it will not only increase the workload of railway maintenance and repair, shorten the service life of the track superstructure, but also seriously affect the safety of train operation

Method used

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Embodiment Construction

[0022] The present invention will be further described below in conjunction with accompanying drawing.

[0023] figure 1 It schematically shows the steps of implementing the roadbed construction method of the present invention. Such as figure 1 As shown, there is a sinking area 2 in the roadbed 1 close to the road surface 11 . figure 1 The dotted line 13 in is the original interface of the sinking region 2 . For railways, subsidence zone 2 is a serious disease, which can lead to unsafe train operation. For this, a subgrade with a sunken area 2 is required.

[0024] First, the sinking area 2 needs to be detected. Various parameters such as the outline of the sunken area 2 can be accurately detected using the radar. The subsidence area 2 can be a small area, or an area extending far along the extension direction of the roadbed 1 .

[0025] Columnar reinforcements 4 are then inserted into the interior of the road bed 1 and below the sunken region 2 in a direction transvers...

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Abstract

The invention discloses a subgrade strengthening method. The method comprises the following steps of step 1, detecting a sunken area of a subgrade; and step 2, extruding a column-shaped strengthening body into the subgrade below the sunken area in a direction transverse to an extending direction of the subgrade so as to lift the sunken area. According to the method disclosed by the invention, the sunken subgrade can be preferably restored so that the safety of a train in running is improved.

Description

technical field [0001] The invention relates to the field of civil engineering, in particular to a roadbed reinforcement method. Background technique [0002] The subgrade of existing lines, especially the railway subgrade, is often filled with low compaction standards due to technical and economic constraints during construction. After the road (or railway) is put into operation, under the long-term vibration and compression of the vehicle, the existing roadbed is prone to overall or partial subsidence. For railways, this disease is particularly serious, and this is because it will not only increase the workload of railway maintenance and repair, shorten the service life of the track superstructure, but also seriously affect the safety of train operation. Therefore, there is an urgent need for a construction method that can quickly repair the roadbed. Contents of the invention [0003] In view of the above problems, the present invention proposes a roadbed reinforcement...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01C3/04
CPCE01C3/04
Inventor 蔡德钩张千里陈锋闫宏业姚建平李中国程远水朱宏伟郭浏卉
Owner RAILWAY ENG RES INST CHINA ACADEMY OF RAILWAY SCI