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Connecting assembly, shield segment connecting structure and shield segment

A technology for connecting components and shield segments, which is applied in shaft linings, tunnel linings, underground chambers, etc., can solve the problems that affect the quality of shield segment connections, the quality of plugging is difficult to guarantee, and consume manpower and time. , to achieve the effect of improving connection efficiency, simple structure, and convenient manufacturing and processing

Pending Publication Date: 2022-03-08
CHINA RAILWAY SIYUAN SURVEY & DESIGN GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In traditional shield tunnels in China, the connection of shield segments still needs to be assembled manually, which seriously restricts the construction efficiency; moreover, the traditional circular joint connectors need to set hand holes in the segments, and the setting of the hand holes is as simple as For subsequent plugging operations, the quality of the plugging is difficult to guarantee, which will affect the quality of the shield segment connection
In addition, bolts are used to connect shield segments in traditional shield tunnels, which have disadvantages such as easy deformation, troublesome construction, and labor and time-consuming; and the traditional bolt connection method is not reliable, and the connection is poor. The shear load will be more transmitted to the bolted connection components, and the shield tunnel will have problems such as connection failure and tunnel water seepage in the later stage of operation

Method used

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  • Connecting assembly, shield segment connecting structure and shield segment
  • Connecting assembly, shield segment connecting structure and shield segment
  • Connecting assembly, shield segment connecting structure and shield segment

Examples

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Embodiment 1

[0033] Such as Figure 1-Figure 4 , the embodiment of the present invention provides a connection assembly, including a connection plug 1 and a connection socket 2,

[0034] The connection socket 2 includes a socket housing 21, an elastic extruding part 24 and a plurality of movable pins 22. The socket housing 21 has a hollow inner cavity and a socket hole is opened on one end shell plate 211. The elastic extruding part 24 accommodated in the hollow cavity and facing the socket hole;

[0035] A plurality of pin seats 23 are arranged on the inner wall of the socket housing 21, and the number of the movable pins 22 is the same as that of the pin seats 23 and are arranged in one-to-one correspondence. In the pin seat 23 and the other end abuts against the elastic extruding member 24; the annular distribution of each of the movable pins 22 constitutes a horn that is coaxial with the socket hole and shrinks toward the elastic extruding member 24 side Pin group structure;

[0036...

Embodiment 2

[0055] An embodiment of the present invention provides a shield segment connection structure, which includes two shield segments arranged in sequence along the longitudinal direction of the tunnel, and the two shield segments are connected through the connection assembly provided in the first embodiment above, wherein the The connection plug 1 and the connection socket 2 are respectively buried on two shield segments and the two are inserted into each other.

[0056] Both the connection plug 1 and the connection socket 2 are preferably embedded in the shield segments.

[0057] The two shield segments are preferably connected through multiple sets of connection components to ensure the stability and reliability of the connection between the two.

Embodiment 3

[0059] An embodiment of the present invention provides a shield segment, including a segment body, one end of the segment body is provided with a connecting plug 1 and the other end is provided with a connecting socket 2;

[0060] The connection socket 2 includes a socket housing 21, an elastic extruding part 24 and a plurality of movable pins 22. The socket housing 21 has a hollow inner cavity and a socket hole is opened on one end shell plate 211. The elastic extruding part 24 accommodated in the hollow cavity and facing the socket hole;

[0061] A plurality of pin seats 23 are arranged on the inner wall of the socket housing 21, and the number of the movable pins 22 is the same as that of the pin seats 23 and are arranged in one-to-one correspondence. In the pin seat 23 and the other end abuts against the elastic extruding member 24; the annular distribution of each of the movable pins 22 constitutes a horn that is coaxial with the socket hole and shrinks toward the elastic...

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Abstract

The invention relates to a connecting assembly which comprises a connecting plug and a connecting socket, the connecting socket comprises a socket shell provided with a socket hole, an elastic extrusion part and a plurality of movable pins, and the movable pins are annularly distributed to form a trumpet-shaped pin group structure which is coaxial with the socket hole and contracts towards one side of the elastic extrusion part; the connecting plug is of a step structure with a large head and a small tail, and when the connecting plug is inserted into the supporting insertion hole and extrudes the elastic extrusion piece, each movable pin can move to one end to abut against the corresponding pin seat, and the other end abuts against the step face of the connecting plug. In addition, the invention further relates to a shield segment connecting structure based on the connecting assembly and a shield segment provided with a connecting plug and a connecting socket. The connecting assembly is simple in structure, easy and convenient to install and operate and capable of reliably bearing loads such as axial force and shearing force, and therefore stable and reliable connection between connecting components such as shield segments can be achieved.

Description

technical field [0001] The invention belongs to the technical field of shield tunneling engineering, and in particular relates to a connection component, a shield segment connection structure based on the connection component and a shield segment. Background technique [0002] With the development of domestic shield technology, the construction diameter of shield tunnels is getting larger and larger, and the corresponding construction requirements need to be more standard and stricter. Therefore, higher requirements are also put forward for the connection technology of shield tunnel segments. In traditional shield tunnels in China, the connection of shield segments still needs to be assembled manually, which seriously restricts the construction efficiency; moreover, the traditional circular joint connectors need to set hand holes in the segments, and the setting of the hand holes is as simple as For subsequent plugging operations, the quality of the plugging is difficult to ...

Claims

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Application Information

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IPC IPC(8): E21D11/08
CPCE21D11/083
Inventor 肖明清薛光桥柳献鲁志鹏赵明应吴鑫林师一鸣张肇一
Owner CHINA RAILWAY SIYUAN SURVEY & DESIGN GRP
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