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Surrounding rock collaborative control system and construction method of traffic tunnel

A technology of collaborative control and construction method, applied in the direction of tunnel, tunnel lining, earthwork drilling and mining, etc., to achieve the effect of preventing large deformation of surrounding rock

Active Publication Date: 2021-11-23
SHANDONG UNIV +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a traffic tunnel surrounding rock collaborative control system, which can effectively prevent and control the surrounding rock large deformation problems faced by traffic tunnels such as surrounding rock rheology and surrounding rock transients

Method used

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  • Surrounding rock collaborative control system and construction method of traffic tunnel
  • Surrounding rock collaborative control system and construction method of traffic tunnel
  • Surrounding rock collaborative control system and construction method of traffic tunnel

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Embodiment 2

[0045] This embodiment discloses a construction method of a traffic tunnel surrounding rock collaborative control system. According to the large deformation parameters of the surrounding rock obtained in the previous period and the geological data obtained in the previous geological exploration, a numerical model is established through finite element software, and a reasonable maximum value is determined through numerical calculation. Optimal support parameters, including the diameter, length, row spacing, prestress size, rigid arch section size, arch spacing, longitudinal connection ring distance, etc. Energy layer, rigid guard plate layer, rigid arch and anchors. Construction includes the following specific steps:

[0046] Step 1: After the tunnel is excavated, use a pressure relief drilling rig to drill a hole 1 on the surface of the surrounding rock 9. After drilling, use a directional blasting device to blast the deep rock formation, which can effectively relieve the pres...

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Abstract

The invention relates to a traffic tunnel surrounding rock collaborative control system and a construction method, comprising a quick-setting slurry layer that can be sequentially arranged along the inner wall of the tunnel to the direction of the inner space of the tunnel, a flexible explosion-proof energy-absorbing layer, a rigid guard plate layer and a steel arch frame, A plurality of telescopic parts are arranged between the flexible explosion-proof energy-absorbing layer and the rigid guard plate layer, and the gap between the flexible explosion-proof energy-absorbing layer and the rigid guard plate layer is filled with flexible materials; the flexible explosion-proof energy-absorbing layer can pass through anchors It is fixedly connected with the surrounding rock, and the anchor piece can be inserted into the surrounding rock. The support structure of the present invention can effectively prevent and control the large deformation of the surrounding rock faced by the traffic tunnel.

Description

technical field [0001] The invention relates to the technical field of tunnel support, in particular to a traffic tunnel surrounding rock collaborative control system and a construction method. Background technique [0002] The statements herein merely provide background information related to the present invention and do not necessarily constitute prior art. [0003] In environments with poor topographical conditions, geological structures, and poor engineering geological conditions, deep-buried and super-long tunnels should be used in the construction of highways, railways and other traffic tunnels. With the increase of tunnel burial depth, both soft rock and hard rock show obvious rheological characteristics. At the same time, the surrounding rock is very easy to cause safety accidents such as large deformation, instability and collapse of the surrounding rock in a high-stress environment. occurred, resulting in significant human and economic losses. At present, most of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21D11/05E21D11/18E21D20/00E21D11/10
CPCE21D11/05E21D11/10E21D11/18E21D20/00
Inventor 王琦周磊生张田涛肖宇驰江贝郑广顺黄玉兵孔军陈元培高红科辛忠欣许硕王悦魏华勇蒋振华曾昭楠薛浩杰秦乾边文辉李鲁宁马玉琨吴文瑞
Owner SHANDONG UNIV
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