Construction Stability of Rectangular Pipe Jacking Shield Tunnel Crossing High-Speed Railway in Composite Stratum

NING Maoquan; JIN Xuehui; LIU Chaoqin; MA Jianfei; CUI Guangyao

doi:10.11858/gywlxb.20220592

Volume 36 Issue 6

Dec 2022

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Chinese Journal of High Pressure Physics > 2022 > 36(6): 065301.

NING Maoquan, JIN Xuehui, LIU Chaoqin, MA Jianfei, CUI Guangyao. Construction Stability of Rectangular Pipe Jacking Shield Tunnel Crossing High-Speed Railway in Composite Stratum[J]. Chinese Journal of High Pressure Physics, 2022, 36(6): 065301. doi: 10.11858/gywlxb.20220592

Citation:

NING Maoquan, JIN Xuehui, LIU Chaoqin, MA Jianfei, CUI Guangyao. Construction Stability of Rectangular Pipe Jacking Shield Tunnel Crossing High-Speed Railway in Composite Stratum[J]. Chinese Journal of High Pressure Physics, 2022, 36(6): 065301. doi: 10.11858/gywlxb.20220592

Citation:

NING Maoquan, JIN Xuehui, LIU Chaoqin, MA Jianfei, CUI Guangyao. Construction Stability of Rectangular Pipe Jacking Shield Tunnel Crossing High-Speed Railway in Composite Stratum[J]. Chinese Journal of High Pressure Physics, 2022, 36(6): 065301. doi: 10.11858/gywlxb.20220592

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Construction Stability of Rectangular Pipe Jacking Shield Tunnel Crossing High-Speed Railway in Composite Stratum

doi: 10.11858/gywlxb.20220592

NING Maoquan^{1, 2
,},
JIN Xuehui²,
LIU Chaoqin²,
MA Jianfei³,
CUI Guangyao^{4,*
,
,}

1.
China Railway Siyuan Survey and Design Group Co., Ltd., Wuhan 430064, Hubei, China
2.
Haixia Traffic Engineering Design Co., Ltd., Fuzhou 350004, Fujian, China
3.
School of Civil Engineering, Beijing Jiaotong University, Beijing 100044, China
4.
School of Civil Engineering, North China University of Technology, Beijing 100144, China

Received Date: 23 May 2022
Rev Recd Date: 11 Jun 2022
Issue Publish Date: 05 Dec 2022

Abstract

Abstract

To ensure the construction stability of rectangular pipe jacking shield tunnel, taking the underground passage project on the east side of a railway station as the case study, the refined model of rectangular pipe jacking shield tunnel under high-speed railway in composite stratum was established using the finite element software ABAQUS. The effects of hard rock ratio, buried depth and pipe joint factors on surface displacement, track deformation, pipe joint convergence and safety factor were analyzed. The results show that with the increase of hard rock ratio in composite stratum, the decrease of buried depth factor and the increase of pipe joint factor, the extreme value of stratum displacement, surface settlement, the overlying high-speed rail track deformation and pipe joint convergence gradually decrease, the safety factor of pipe joint gradually increases, and the construction stability of rectangular pipe jacking shield in composite stratum becomes better and better. The research conclusion can provide reference for similar projects.
- rectangular pipe jacking shield,
- composite stratum,
- construction stability,
- close-space construction

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References(15)

References

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