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Multi-opening multi-pipe-section large-section tunnel, construction method, pipe section connection structure and connection method

A connection method and connection structure technology, which are used in the connection of large-section tunnels, the construction of multi-opening and multi-section large-section tunnels, the joint connection structure of large-section tunnels, and the multi-opening and multi-section large-section tunnels. ,In the field of tunnel pipe joint connection, it can solve the problems of complex underground space construction environment (the impact of surrounding roads, underground pipelines, structures, etc.), and achieve the effect of low cost, high construction efficiency and large inner diameter.

Pending Publication Date: 2019-01-08
CHINA RAILWAY TUNNEL GROUP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, as the length of the tunnel becomes longer and longer, the size of the section of the pipe joint becomes larger and larger, and the construction environment of the underground space becomes increasingly complex (influenced by surrounding roads, underground pipelines, and structures), the requirements for the pipe jacking construction process are also increasing, and the use of In the tunnel constructed by the pipe jacking construction method, the section of the pipe joint needs to be balanced in force, so the tunnel constructed by the pipe jacking construction method can only form openings at both ends

Method used

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  • Multi-opening multi-pipe-section large-section tunnel, construction method, pipe section connection structure and connection method
  • Multi-opening multi-pipe-section large-section tunnel, construction method, pipe section connection structure and connection method
  • Multi-opening multi-pipe-section large-section tunnel, construction method, pipe section connection structure and connection method

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Experimental program
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Effect test

Embodiment 1

[0043] Embodiment 1: A pipe joint connection structure for a large-section tunnel of the pipe jacking construction method, see Figure 1-3 , including at least two pipe joints, connecting parts, pads 2, pads 3 and elastic waterstop rings 5 ​​arranged adjacent to each other longitudinally along the tunnel direction.

[0044] On the upper part of both sides of the inner wall of the pipe joint (including the top of the inner wall and the upper part of the side wall of the inner wall), there are respectively tensioning parts. The two tensioning parts are preferably symmetrical with the stress centered plane of the complete pipe joint as the symmetrical plane. For setting, a tension hole is provided in the tension part, and the tension hole is also preferably arranged symmetrically with the force-bearing center plane of the complete pipe joint as the symmetrical plane. In this way, the side wall of the tube section under the tensioned corner can be opened on one side, which can sol...

Embodiment 2

[0053] Embodiment 2: A method for connecting pipe joints used in the pipe jacking construction method, comprising the following steps: obtaining pipe joints for large-section tunnels; The upper part of the side wall) are respectively provided with tensioning parts. The two tensioning parts are preferably arranged symmetrically with the centered surface of the complete pipe joint as the symmetric plane. Tensioning holes are provided in the tensioning parts. The pulling holes are also preferably arranged symmetrically with the stress-bearing center plane of the complete pipe joint as the symmetrical plane; the pipe joints for the large-section tunnel are arranged longitudinally along the tunnel direction by the pipe jacking construction method, and the two ends that need to be connected into a whole The pipe joints are respectively pipe joint 11 and pipe joint 12, that is to say, there can be 1 pipe joint, 2 pipe joints or multiple pipe joints between the pipe joint 11 and the pi...

Embodiment 3

[0062] Embodiment 3: A construction method for constructing a multi-opening multi-pipe-section type large-section tunnel using the pipe-joint connection method for the large-section tunnel of the pipe jacking construction method in Embodiment 2, comprising the following steps:

[0063] Obtain the pipe joints used to form large-section tunnels, and use the pipe jacking construction method to construct multi-pipe-section large-section tunnels;

[0064] Adopting the pipe joint connection method of the large-section tunnel used in the pipe jacking construction method in Embodiment 2 will correspond to the pipe joints at the side openings and the pipe joints adjacent to the side openings, and other load-bearing requirements of large-section tunnels. The tensile parts on both sides of the pipe joints that need to be connected are connected and fixed together according to the settlement amplitude requirements;

[0065] A side outlet is constructed on the side of the side opening.

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Abstract

The invention discloses a pipe section connection method and connection structure of a large-section tunnel for a pipe-jacking construction method. The structure comprises two adjacent pipe sections longitudinally connected to each other and a connection part. Upper parts of two sides of inner walls of the pipe sections are provided with tensioning portions with tensioning holes, and an elastic water stop ring for sealingly connecting the two tensioning holes is arranged between the two pipe sections. The connecting part comprises a rigid rod body and two cushion blocks which are provided withholes for grouting. The two pipe sections are fixed together through the connection part passing through the tensioning holes, and a pouring sealing body is arranged in the tensioning holes and the elastic water stop ring. The connection structure has the advantages of convenience in installation, little possibility of rust and good shear resistance. The invention also comprises a multi-pipe-section large-section tunnel constructed by using the pipe-jacking construction method, a side of the large-section tunnel is provided with a side outlet, the tensioning portions corresponding to the pipesections are connected to be a whole body through the above pipe section connection structure of the large-section tunnel, the construction efficiency is high, the cost is low, the settlement is balanced, and the maintenance cost is low.

Description

technical field [0001] The invention relates to a tunnel, in particular to a multi-opening multi-pipe section type large-section tunnel. [0002] The invention relates to a construction method of a tunnel, in particular to a construction method of a multi-opening multi-pipe section type large-section tunnel. [0003] The invention relates to a tunnel pipe joint connection structure, in particular to a pipe joint connection structure used in a large-section tunnel of the pipe jacking construction method. [0004] The invention also relates to a method for connecting pipe joints of a tunnel, in particular to a method for connecting pipe joints of large-section tunnels used in the pipe jacking construction method. Background technique [0005] With the rapid development of social economy, urban ground space is becoming increasingly tense, and the development and application of underground space is becoming more and more popular. Under normal circumstances, tunnels, tunnels or...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D11/08E21D11/38E21D9/14
CPCE21D9/14E21D11/08E21D11/083E21D11/38E21D11/385
Inventor 周仲贺王俊澎杨红军杜闯东李向南王坤张朋晖王义杰
Owner CHINA RAILWAY TUNNEL GROUP CO LTD
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