Stratum disturbance of rectangular pipe-jacking in shallow strata under adverse jacking attitude

Zhang Zhen; Liu Xingshuai; Yang Yifan; Yan Qixiang; Huang Jie

doi:10.20265/j.cnki.issn.1007-2993.2024-0379

Volume 39 Issue 6

Dec. 2025

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Article Navigation > GEOTECHNICAL ENGINEERING TECHNIQUE > 2025 > 39(6): 874-884

Zhang Zhen, Liu Xingshuai, Yang Yifan, Yan Qixiang, Huang Jie. Stratum disturbance of rectangular pipe-jacking in shallow strata under adverse jacking attitude[J]. GEOTECHNICAL ENGINEERING TECHNIQUE, 2025, 39(6): 874-884. doi: 10.20265/j.cnki.issn.1007-2993.2024-0379

Citation:

Zhang Zhen, Liu Xingshuai, Yang Yifan, Yan Qixiang, Huang Jie. Stratum disturbance of rectangular pipe-jacking in shallow strata under adverse jacking attitude[J]. GEOTECHNICAL ENGINEERING TECHNIQUE, 2025, 39(6): 874-884. doi: 10.20265/j.cnki.issn.1007-2993.2024-0379

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Stratum disturbance of rectangular pipe-jacking in shallow strata under adverse jacking attitude

doi: 10.20265/j.cnki.issn.1007-2993.2024-0379

1.
Shandong Hi-speed Engineering Construction Group Co., Ltd., Jinan 250014, Shandong, China
2.
Key Laboratory of Transportation Tunnel Engineering, Ministry of Education, Southwest Jiaotong University, Chengdu 610031, Sichuan, China

Received Date: 2024-08-19
Accepted Date: 2025-01-02
Rev Recd Date: 2024-10-31

Available Online: 2025-12-08

Publish Date: 2025-12-08

Abstract

Abstract

Pipe-jacking has been widely used in the construction of underground projects such as utility tunnels and underpass tunnels. Due to uneven strata and improper setting of jacking force, adverse jacking attitude is easy to occur in the process of pipe-jacking. To study the stratum disturbance of pipe-jacking in shallow strata under adverse jacking attitude, based on the project of Chengdu Ziyuan Avenue utility tunnel underpass expressway, three-dimensional finite element analysis models considering four kinds of adverse jacking conditions, i.e. tunnel face bias, horizontal offset axis, vertical offset axis and machine head torsion, were established respectively. The following conclusions were obtained: (1) the influence of tunnel face bias jacking on surface settlement displacement was not obvious, the lateral displacement of the left side in front of the excavation face was slightly larger than that of the right side, while the longitudinal displacement of the left side was slightly smaller than that of the right side; (2) In case of horizontal deviation, the displacement of monitoring points ① and ③ deviates from the axis before the tunnel face passes through, and faces the axis after the tunnel face passes through; (3) When the vertical downward displacement occurs during the jacking, the ground subsidence behind the tunnel face will increase significantly compared with the normal jacking, while the ground uplift in front of the tunnel face is smaller; (4) When the machine head torsion occurs during jacking, the lateral displacement of the left side of the ground behind the face is less than that of the right side, but the settlement displacement is greater than that of the right side.
- pipe-jacking tunnel,
- jacking attitude,
- strata disturbance,
- excavation simulation

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References(15)

References

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Stratum disturbance of rectangular pipe-jacking in shallow strata under adverse jacking attitude

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