Regulating treatment method of railway tunnel integrated ballast bed subsidence

A technology of integral track bed and treatment method, applied in the directions of roads, tracks, buildings, etc., can solve problems such as endangering traffic safety and affecting the smooth running of trains, and achieve the effects of less traffic interference, reasonable and efficient remediation methods, and short construction periods.

Inactive Publication Date: 2018-03-30
CHINA RAILWAY FIRST SURVEY & DESIGN INST GRP
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  • Abstract
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AI Technical Summary

Problems solved by technology

The sinking of the track bed affects the smooth operation of the train and seriously endangers the safety of the train

Method used

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  • Regulating treatment method of railway tunnel integrated ballast bed subsidence
  • Regulating treatment method of railway tunnel integrated ballast bed subsidence

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Embodiment Construction

[0025] The present invention will be described in detail below in combination with specific embodiments.

[0026] The method for rectifying and treating subsidence of the integral ballast bed of a railway tunnel according to the present invention comprises the following steps:

[0027] Step 1: filling and repairing the cavity or weak layer at the bottom of the inverted arch of the tunnel by grouting;

[0028] Step 2: Reset the sinking support block by adding cushioning and heightening gaskets or lifting treatment; if the support block sinks less than 10mm, it will be processed by adding cushions and heightening gaskets, and if the support block sinks more than 10mm, it will be raised deal with.

[0029] The ballast bed subsidence treatment in Step 1 specifically includes the following steps:

[0030] (1) A detailed inspection should be carried out on the part of the pad to check whether the boots and rubber pad are damaged, and whether there is a cavity at the bottom of the ...

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Abstract

The invention relates to a regulating treatment method of railway tunnel integrated ballast bed subsidence. Due to long-time service and utilization of a tunnel integrated ballast bed or based on original defects existing in the building process, an integrated ballast bed structure is likely to subside, and the subsidence degree and the subsidence development speed are increased year by year. A hole or a weak layer at the bottom of a tunnel inverted arch is filled and repaired in a grouting tamping mode, a subsiding supporting block is reset and treated in a heightening cushion adding mode ora lifting treatment mode, construction is overall, a ballast bed and a rail are both regulated and reset pertinently, a construction period is short, traveling disturbance is small, a treatment resultis obvious, and a reasonable and efficient regulating method is provided for tunnel running maintenance.

Description

technical field [0001] The invention relates to the technical field of construction and maintenance of railway tunnels, in particular to a treatment method for rectifying subsidence of an integral ballast bed of a railway tunnel. Background technique [0002] The integral ballast bed of the tunnel has been in service for a long time or due to the original defects in the construction, it is prone to subsidence of the integral ballast bed structure, and the degree of subsidence and the speed of subsidence development are increasing year by year. In addition, factors such as underground mining, cross-engineering construction, changes in the surrounding environment, and regional settlement are also important factors that lead to the subsidence of the ballast bed structure. The sinking of the track bed affects the smooth operation of the train and seriously endangers the safety of the train. Contents of the invention [0003] The purpose of the present invention is to provide ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01B2/00
CPCE01B2/00E01B2204/03
Inventor 张剑杨靖东
Owner CHINA RAILWAY FIRST SURVEY & DESIGN INST GRP
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