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Study and analysis method for deformation control technology of high-crustal-stress interbed soft rock tunnel

A high in-situ stress and deformation control technology, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve problems such as mutual interference and large deformation of tunnels, reduce sliding, control deformation, and uniform force on bolts Effect

Pending Publication Date: 2021-06-04
SHIJIAZHUANG TIEDAO UNIV
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Problems solved by technology

However, in the actual construction process, the simultaneous operation of the upper and lower steps will interfere with each other, and will also increase the number of disturbances to the surrounding rock, causing greater deformation of the tunnel

Method used

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  • Study and analysis method for deformation control technology of high-crustal-stress interbed soft rock tunnel
  • Study and analysis method for deformation control technology of high-crustal-stress interbed soft rock tunnel
  • Study and analysis method for deformation control technology of high-crustal-stress interbed soft rock tunnel

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Embodiment Construction

[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0036] see Figure 1-15 , in the embodiment of the present invention, a method for research and analysis of deformation control technology of interbedded soft rock tunnel with high ground stress, the method steps are as follows:

[0037] Step 1: Comparative analysis of different step lengths

[0038] In the actual process of tunnel construction, when the step method is used to excavate the tunnel, the step length has a great influence on the deformation of th...

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Abstract

The invention discloses a study and analysis method for deformation control technology of a high-crustal-stress interbed soft rock tunnel. The method comprises the following steps that 1, comparing and analyzing different step lengths; 2, making contrastive analysis on the inverted arch closing distance; 3, making anchor rod support contrastive analysis; 4, making contrastive analysis of the construction time of the second lining, when the length of the steps is larger, indicating that the deformation of the tunnel and the stress of the supporting structure are larger, the supporting structure can be closed in time due to the fact that the steps are shortened, considering the lengths of the steps of 4 m and 5 m are combined, and the deformation of the tunnel can be better controlled; three supporting schemes are provided for the high-crustal-stress interbedding soft rock tunnel, the three supporting schemes are compared and analyzed to obtain that when the first scheme is adopted, five anchor rods achieve yield, sliding between bedding can be better reduced through the third scheme, stress of the anchor rods is more uniform, the supporting effect of the anchor rods can be fully exerted. And tunnel deformation is controlled.

Description

technical field [0001] The invention relates to the technical field of tunnel deformation, in particular to a method for researching and analyzing deformation control technology of high ground stress interbedded soft rock tunnels. Background technique [0002] The step method construction has the characteristics of changeable, flexible and strong applicability. In the specific construction process, it is not only suitable for the surrounding rock environment with poor stability, but also has enough work space, reduces the work intensity and difficulty, and improves the construction efficiency. Therefore, it has been widely used in the tunnel construction process. However, in the actual construction process, the simultaneous operation of the upper and lower steps will interfere with each other, and will also increase the number of disturbances to the surrounding rock, causing greater deformation of the tunnel. Therefore, in the construction process using the step method, it ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/13G06F30/20G06F111/10G06F119/14
CPCG06F30/13G06F30/20G06F2111/10G06F2119/14
Inventor 朱正国崔振伟丁祥韩智铭樊浩博王晓明房学谦黄鑫王旭高利斌高新强韩伟歌朱永全孙明磊郭小龙焦银峰方智淳张帅
Owner SHIJIAZHUANG TIEDAO UNIV
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