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Excavation method of roadbed adjacent to existing railway

A technology for existing railways and roadbeds, applied in excavation, infrastructure engineering, construction, etc., and can solve the problems of slope debris rolling, danger, complicated excavation methods, etc.

Pending Publication Date: 2021-09-21
THE NO 6 ENG CO LTD OF CHINA RAILWAY 20TH BUREAU GRP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention provides a method for excavating an adjacent existing railway subgrade, which aims to solve the problem of complex excavation methods for adjacent existing railway subgrades in the prior art, which are prone to danger caused by side slope debris rolling or affecting the normal operation of existing track lines. technical issues

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  • Excavation method of roadbed adjacent to existing railway
  • Excavation method of roadbed adjacent to existing railway
  • Excavation method of roadbed adjacent to existing railway

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no. 1 example

[0048] see figure 1, according to the first embodiment of the present invention, the present invention provides a method of excavating adjacent to the existing railway subgrade, for laying a new track line next to the existing track line 1, the slope of the existing track line 1 and the new track line The side slope is in the same cutting, and the excavation methods adjacent to the existing railway subgrade include:

[0049] S100, setting a fixed stopper 2 on the side of the existing track line 1 close to the new track line, the fixed stopper 2 is set at a first preset distance from the existing track line 1;

[0050] S200, setting a movable stopper 3 between the fixed stopper 2 and the new track line, and the distance between the movable stopper 3 and the fixed stopper 2 can be adjusted along with the construction;

[0051] S300, when the distance between the existing track line 1 and the new track line is less than a second preset distance, excavating by breaking hammer or ...

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Abstract

The invention provides an excavation method of a roadbed adjacent to an existing railway. The excavation method of the roadbed adjacent to the existing railway comprises the following steps of arranging a fixed blocking piece on one side, close to a new railway line, of an existing railway line, wherein the fixed blocking piece and the existing railway line are arranged at a first preset distance; arranging a movable blocking piece between the fixed blocking piece and the new railway line, wherein the distance between the movable blocking piece and the fixed blocking piece can be adjusted along with construction; performing excavation by using a breaking hammer or static blasting excavation when the distance between the existing railway line and the new railway line is smaller than a second preset distance; and performing step-by-step reserved partition wall excavation when the distance between the existing railway line and the new railway line is larger than the second preset distance and is smaller than a third preset distance. The excavation method of the roadbed adjacent to the existing railway has the advantage of simplicity, and the situation that side slope mudstone rolls down to cause danger or influence normal operation of the existing railway line can be prevented.

Description

technical field [0001] The invention relates to the technical field of roadbed excavation, in particular to a method for excavating an adjacent existing railway roadbed. Background technique [0002] In the actual railway construction process, it is now necessary to build a new track line next to the existing track line. The distance between the new track line and the existing track line is relatively close and is in normal use. The corresponding existing track line is the filling embankment and the excavation road cutting. , the distance between the center line of the new track line and the track of the existing track line is 5m, and the cutting section of this section is in the same cutting as the cutting of the existing track line, and no natural barrier can be formed between the slopes, and the slope is steep. The excavation method of the prior art is complicated, and it is easy to cause danger due to the rolling of mud and rocks on the side slope or affect the normality...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D17/20
CPCE02D17/20
Inventor 李军李海波杜凡
Owner THE NO 6 ENG CO LTD OF CHINA RAILWAY 20TH BUREAU GRP
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