Segment support structure of shield section tunnel communication channel

A technology for interval tunnels and connecting passages, applied in tunnels, tunnel linings, shaft equipment, etc., can solve the problems of inconvenient entry and exit of construction personnel and materials, prolonged construction period, and low installation efficiency, so as to achieve convenient and fast assembly and disassembly, and shorten construction Cycle, the effect of convenience in and out

Active Publication Date: 2022-03-25
CHINA CREC RAILWAY ELECTRIFICATION BUREAU GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The traditional shield communication channel is constructed after two tunnels or one tunnel are penetrated. Usually, the well-shaped steel support is used for stability. After the well-shaped steel support, it is inconvenient for construction personnel and materials to enter and exit the tunnel, which prolongs the construction period. At the same time, This kind of steel support structure is mostly welded and installed, the installation efficiency is low, and it is difficult to dismantle after the tunnel construction is completed, which further prolongs the construction period

Method used

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  • Segment support structure of shield section tunnel communication channel
  • Segment support structure of shield section tunnel communication channel
  • Segment support structure of shield section tunnel communication channel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Such as figure 1 , figure 2 and image 3 As shown, a segment support structure for the connecting channel of a shield interval tunnel includes a segment ring assembled from six segments 1 and a ring-shaped steel support structure circumferentially surrounding the inner side of the segment ring, wherein, The six segments 1 consist of three standard blocks, two connecting blocks and one capping block;

[0042] The inner middle part of the segment 1 has an assembly screw hole 6, and corresponding to the assembly screw hole 6, an assembly bolt 3 threaded therewith is provided;

[0043] The ring-shaped steel support structure includes arched steel support pieces 2 having the same number as the segments 1, and the adjacent arched steel support pieces 2 are detachably connected;

[0044] The middle part of each arched steel support piece 2 is provided with a via hole corresponding to the assembly bolt 3, and the arched steel support piece 2 is screwed into the correspondin...

Embodiment 2

[0056] The difference with embodiment 1 is:

[0057] Such as Figure 4 and Figure 5 As shown, the telescoping mechanism includes a rubber airbag 11, the outer side of the arched steel support piece 2 is provided with a counterbore 10 near the end of the tube piece 1, and the inner wall of the arched steel support piece 2 is opened There is a through hole 12 communicating with the receiving counterbore 10, the through hole 12 is provided with an air pipe, one end of the air pipe is connected to the rubber air bag 11, and the other end can be connected to an external air source.

[0058] Preferably, two rubber airbags 11 are provided, and are respectively located on opposite sides of the accommodating counterbore 10, and two through-holes 12 are correspondingly opened on the inner wall of the arched steel support sheet 2. .

[0059] The assembly and disassembly method of the present invention: during installation, after using the assembly machine to install the segment 1, co...

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Abstract

The invention discloses a segment support structure of a connecting channel in a tunnel in a shield tunnel, which comprises a segment ring assembled from a plurality of segments and a ring-shaped steel support structure circumferentially surrounding the inner side of the segment ring; There is an assembly screw hole in the middle part of the inner side of the segment, and an assembly bolt threaded with it is provided corresponding to the assembly screw hole; the annular steel support structure includes arched steel support pieces consistent with the number of the segment, two by two The adjacent arched steel support pieces are detachably connected; the middle of each piece of said arched steel support piece is provided with a via hole corresponding to the assembly bolt, and the arched steel support piece passes through the assembly bolt The through holes are screwed into the corresponding assembly screw holes to detachably connect with the corresponding segments; a telescopic mechanism is arranged between each arched steel support piece and the corresponding segment; The invention has simple structure, convenient assembly and disassembly, convenient entry and exit of construction personnel and materials, and effectively shortens the construction period of the shield communication channel.

Description

technical field [0001] The invention relates to the technical field of tunnel shielding, in particular to a segment support structure of a tunnel connecting channel in a shield section. Background technique [0002] The shield connection channel is generally set in the middle of two tunnels, and becomes a channel set between the two tunnels, which plays the roles of communication, drainage and fire prevention. If there is a problem with one tunnel as a whole, pedestrians / constructors can transfer to another tunnel through the connecting passage, and the safety factor of pedestrians / constructors will also be greatly increased, so it is called "escape channel". It is also convenient that when a problem occurs in a tunnel, rescuers can reach the communication channel from another tunnel, and then enter the place that needs rescue (the tunnel where the accident occurred) through the communication channel, so as to achieve the purpose of quick rescue. [0003] The traditional sh...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21D11/15E21D11/08E21F11/00
CPCE21D11/155E21D11/08E21F11/00
Inventor 祁宝成王炜李清宪刘瑞秦朋飞朱明辉吴永毅芦建广杨化龙雷志权李国华吉帅科
Owner CHINA CREC RAILWAY ELECTRIFICATION BUREAU GRP
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