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A Segment Lining Reinforced Combined Support Structure

A combined support and reinforcement technology, applied in wellbore lining, tunnel lining, underground chambers, etc., can solve the problems of water leakage, segment misalignment, insufficient rigidity and deformation of prefabricated segment lining support, etc. The effect of controlling the deformation of surrounding rock, improving the mechanical behavior, and quick and convenient installation

Active Publication Date: 2018-05-04
SOUTHWEST JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the shield tunnel boring machine (TBM) is used for construction, this high ground stress will easily lead to serious deformation of the assembled segment lining due to insufficient support stiffness, resulting in segment misalignment and water leakage, forcing Segment lining structure abandoned during design

Method used

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  • A Segment Lining Reinforced Combined Support Structure
  • A Segment Lining Reinforced Combined Support Structure
  • A Segment Lining Reinforced Combined Support Structure

Examples

Experimental program
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Embodiment Construction

[0023] The present invention will be further described below in conjunction with accompanying drawing:

[0024] Such as figure 1 , figure 2 and image 3 As shown, the segment lining reinforced combined support structure of the present invention includes a segment 1 made of steel bars and concrete, an arched steel frame 5 equal to the inner diameter of the segment 1, and a self-advancing threaded anchor rod 4, the arched The radial section of the steel frame 5 is "C" shape, and the two sides of the segment 1 are respectively provided with installation grooves 6, and the bottom of the corresponding installation groove 6 is provided with a pre-embedded bolt connector 3 in the segment 1, The arched steel frame 5 is installed in the installation groove 6 of two adjacent segments 1 and fixedly connected with the two adjacent segments 1, and a waterproof rubber strip is provided between the two side edges of the adjacent segments 1 7. The outer opening of the arched steel frame 5...

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Abstract

The invention discloses a segment lining reinforced combined support structure, which comprises a segment made of steel bars and concrete and an arch frame with the same inner diameter as the segment. The radial section of the arch frame is "C ” shape, the two sides of the segments are respectively provided with installation grooves, and the arch frame is installed in the installation grooves of two adjacent segments and fixedly connected with two adjacent segments, The outer side of the arch frame is open. The segment lining reinforced joint support structure of the present invention connects and fixes two adjacent segments through an arch frame, so that the overall stiffness of the joint is improved, and at the same time, the staggering of the joint is reduced. And reduce the number of hand holes in the segment; the installation grooves on both sides of the segment form a stepped joint between two adjacent segments, so that the waterproof performance of the joint is improved, especially suitable for high ground stress and large deformation Tunnel construction under geological conditions.

Description

technical field [0001] The invention relates to a segment lining support structure used in tunnel engineering, in particular to a segment lining reinforced combined support structure. Background technique [0002] Segment lining, as a kind of tunnel support structure, is assembled from prefabricated segments. The longitudinal direction of the tunnel is assembled by multi-ring assembled segment rings, and each ring segment is composed of a certain number of prefabricated reinforced concrete segments connected by ring bolts. Segment lining, as a kind of tunnel support structure, is widely used in tunnels constructed by shield tunneling method or TBM method because it can bear force immediately after being assembled into a ring and is conducive to mechanized construction. [0003] In recent years, with the continuous development of high-speed railways, there are more and more long and deeply buried railway tunnels. These railway tunnels are prone to encounter the adverse geolo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21D11/08E21D20/00E21D11/18E21D11/38
CPCE21D11/08E21D11/083E21D11/18E21D11/385E21D20/00
Inventor 晏启祥张伟列何川徐亚军
Owner SOUTHWEST JIAOTONG UNIV
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