Method for preventing freezing damage of existing railroad bed

A technology of existing railways and subgrades, applied in roads, tracks, buildings, etc., can solve problems such as poor effectiveness and limited maintenance time for high-speed railways, achieve good anti-freeze damage performance, eliminate subgrade frost damage, and enhance anti-freeze damage effects. Effect

Inactive Publication Date: 2020-09-29
BEIJING TIEKE SPECIAL ENG TECH CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, although these remediation methods can achieve certain effects, their effectiveness is poor, and the maintenance time of high-speed railways is limited, and they have not fundamentally solved the problem of freezing damage on railway subgrades.

Method used

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  • Method for preventing freezing damage of existing railroad bed
  • Method for preventing freezing damage of existing railroad bed
  • Method for preventing freezing damage of existing railroad bed

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Experimental program
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Effect test

Embodiment Construction

[0027] The present invention will be further described below with reference to the accompanying drawings.

[0028] figure 1 Construction steps according to one embodiment of the invention are shown.

[0029] First, obtain the geological parameters of the corresponding subgrade area, as in step S01. Next, according to the acquired geological parameters, the positions of the grouting holes are set on the railway subgrade, and the holes are drilled to form the grouting holes on the subgrade, as in step S02. Then, grouting is performed in the grouting hole to fill the roadbed and improve the filling of the roadbed, as in step S03.

[0030] Therefore, in this method, grouting holes are arranged on the roadbed, and construction can be carried out at the sunroof point without affecting the normal vehicle operation. In addition, the grouting liquid has good water-proof performance, which can discharge the water in the subgrade filler to achieve the purpose of reducing and eliminati...

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PUM

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Abstract

The invention provides a method for preventing freezing damage of an existing railroad bed. The method comprises the steps of 1, acquring geological parameters of a corresponding roadbed area; 2, according to the geological parameters, arranging grouting holes in the roadbed; and 3, carrying out grouting in the grouting hole. According to the method, construction is performed on an existing railway so as to improve a freezing damage prevention effect, meanwhile, construction can be performed on site in real time, normal vehicle operation is not affected, in addition, grouting has good waterproof performance, water in a roadbed filler can be drained, and the purpose of reducing and eliminating roadbed freezing damage is achieved.

Description

technical field [0001] The invention relates to the technical field of maintenance engineering of existing railway subgrades, in particular to a method for preventing frost damage of existing railway subgrades. Background technique [0002] In recent years, with the rapid development of high-speed railways, my country has built large-scale high-speed railways, which brings great convenience to people's travel. However, in the process of high-speed railway operation, there will be some disease problems in the high-speed railway subgrade. In particular, there will be a series of frost heave problems in the culvert subgrade of the railway line, and the subgrade in the seasonally frozen land area will also suffer from frost damage. For example, there are problems such as low temperature and water seepage in the subgrade bed, resulting in high subgrade moisture content and poor soil quality, which lead to the instability of the subgrade subgrade structure, which seriously affect...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01B2/00C08L33/00C08K5/14
CPCE01B2/00C08K5/14C08L33/00
Inventor 蔡德钩姚建平张千里陈锋闫宏业王立伟谢良生王云飞邓逆涛崔颖辉闫鑫
Owner BEIJING TIEKE SPECIAL ENG TECH CO LTD
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