Shield tunnel lining ring suitable for quick metro lines

A technology of shield tunnel and lining ring, applied in tunnel lining, tunnel, shaft lining and other directions, can solve the problem of unfavorable segment handling, hoisting and splicing, cannot guarantee the longitudinal rigidity of shield tunnel with increased cross-section, single segment segment Volume and weight increase and other issues, to achieve the effect of facilitating installation and connection, reducing structural deformation, and reducing construction difficulty

Pending Publication Date: 2017-07-14
SOUTHWEST JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] ①The volume and weight of a single segment will greatly increase, which is not conducive to the construction operations such as handling, hoisting and splicing of the segment; ②The number of 10 or 12 longitudinal connecting bolts of the conventional segment cannot guarantee the longitudinal stiffness

Method used

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  • Shield tunnel lining ring suitable for quick metro lines
  • Shield tunnel lining ring suitable for quick metro lines
  • Shield tunnel lining ring suitable for quick metro lines

Examples

Experimental program
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Effect test

Embodiment

[0029] Please refer to figure 1 The shown shield tunnel lining ring 100 adapted to the rapid subway line, the lining ring 100 is a 4+2+1 block type, the lining ring 100 includes 4 standard blocks 110, 2 adjacent blocks 120 and 1 A capped block 130. The capping block 130 , the adjacent block 120 and the standard block 110 are spliced ​​by a shield machine to form a closed lining ring 100 with a smooth end surface.

[0030] The four standard blocks 110 are spliced ​​together, the two adjacent blocks 120 are respectively connected to both sides of the four standard blocks 110 , and the capped block 130 is connected between the two adjacent blocks 120 . The four standard blocks 110 are connected sequentially, two adjacent blocks are respectively connected to both ends of the standard block 110 , and the capped block 130 is located between the two adjacent blocks 120 . The capping block is wedge-shaped, and the wedge-shaped amount is 64.0mm.

[0031] The central angles of the st...

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PUM

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Abstract

The invention discloses a shield tunnel lining ring suitable for quick metro lines. The lining ring is in a 4+2+1 block type and comprises 4 standard blocks, 2 adjacent blocks and 1 top sealing block, wherein the four standard blocks are spliced together, the two adjacent blocks are each connected to the two sides of the four standard blocks, and the top sealing block is connected between the two adjacent blocks, central angles of the standard blocks and the adjacent blocks are 54 degrees, and a central angle of the top sealing block is 36 degrees. The shield tunnel lining ring suitable for quick metro lines disclosed by the invention can meet a requirement of quick metro for the tunnel lining ring, and the provided block type is convenient to construct and has high longitudinal rigidity and good stability.

Description

technical field [0001] The invention relates to the technical field of tunnel engineering, in particular to a shield tunnel lining ring suitable for rapid subway lines. Background technique [0002] At present, the urban subway has become an important mode of urban public transportation in my country, and has gradually become one of the important symbols of urban modernization. At present, the maximum operating speed of domestic subways is generally 80km / h, and the inner diameter of shield tunnels generally does not exceed 5.5m. As the urban subway extends from the core urban area to surrounding clusters or satellite cities, the distance between stations increases. Therefore, further improving the operation speed of the subway is of great significance for improving the efficiency of urban transportation. Especially the airport lines in major cities, because the airports are far away from urban areas, have higher requirements for the running speed of subway trains. The subwa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D11/00E21D11/08
CPCE21D11/00E21D11/08
Inventor 晏启祥张川李彬嘉
Owner SOUTHWEST JIAOTONG UNIV
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