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Traffic tunnel surrounding rock cooperative control system and construction method thereof

A technology of collaborative control and surrounding rock, applied in tunnels, tunnel linings, earthwork drilling, etc., to prevent large deformation of surrounding rock

Active Publication Date: 2021-04-13
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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  • Traffic tunnel surrounding rock cooperative control system and construction method thereof
  • Traffic tunnel surrounding rock cooperative control system and construction method thereof
  • Traffic tunnel surrounding rock cooperative control system and construction method thereof

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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 cooperative control system and a construction method thereof. The traffic tunnel surrounding rock cooperative control system comprises a quick-setting slurry layer, a flexible explosion-proof energy absorption layer, a rigid guard plate layer and a rigid arch frame which can be sequentially arranged from the inner wall of a tunnel to the inner space of the tunnel, and a plurality of telescopic pieces are arranged between the flexible explosion-proof energy absorption layer and the rigid guard plate layer; a gap between the flexible explosion-proof energy absorption layer and the rigid guard plate layer is filled with a flexible material; and the flexible explosion-proof energy absorption layer can be fixedly connected with surrounding rock through anchoring pieces, and the anchoring pieces can be inserted into the surrounding rock. Through a supporting structure, the problem of surrounding rock large deformation faced by a traffic tunnel can be effectively prevented and controlled.

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 Applications(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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