Research on the method of construction disturbance zoning for shield tunnel approaching to urban structures

doi:10.1007/s11709-024-1109-8

Frontiers of Structural and Civil Engineering

2024, Vol. 18

Issue (11): 1663-1679 https://doi.org/10.1007/s11709-024-1109-8

本期目录

Research on the method of construction disturbance zoning for shield tunnel approaching to urban structures

Ziyang ZHOU¹, Fukang GUO¹, Jianzhong NI², Kun FENG¹(

), Jingxuan ZHANG¹, Yiwen LIU¹

¹. Key Laboratory of Transportation Tunnel Engineering of Ministry of Education, Southwest Jiaotong University, Chengdu 610031, China
². Hangzhou Fuyang City Construction Investment Group co., Ltd., Hangzhou 310000, China

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Abstract：

This paper presents a calculation method that evaluates the extent of disturbance based on structural safety limits. Additionally, it summarizes the assessment methods for construction disturbance zones in shield tunneling near pile foundations, urban ground structures, and underground structures. Furthermore, taking the construction of the Chengdu Jinxiu Tunnel under bridges and urban pipelines as the engineering background, a study on the disturbance zoning of adjacent structures was conducted. The most intense disturbance occurs within one week of the tunnel underpass process, and it has a significant impact within a range of two times the tunnel diameter along the tunnel axis. The bridge pile and bridge deck experience less disturbance from tunnel approaching construction, with a maximum disturbance zone characterized as medium disturbance. On the other hand, underground pipelines are subjected to more significant disturbances from tunnel construction, with a maximum disturbance zone classified as strong disturbance. The implementation of “bridge pile sleeve valve pipe grouting & underground pipeline ground grouting & tunnel advance grouting” in the field effectively limits the vertical settlement of bridges and pipelines, resulting in a decrease of approximately 0.1 in disturbance level for the structures. The disturbance zoning method can assess tunnel disturbance with structures, identify high-risk interference locations, and facilitate targeted design reinforcement solutions.

Key words： shield tunnel approaching construction field monitoring disturbance zoning method

收稿日期: 2023-11-06 出版日期: 2024-11-28

Corresponding Author(s): Kun FENG

引用本文:

. [J]. Frontiers of Structural and Civil Engineering, 2024, 18(11): 1663-1679.
Ziyang ZHOU, Fukang GUO, Jianzhong NI, Kun FENG, Jingxuan ZHANG, Yiwen LIU. Research on the method of construction disturbance zoning for shield tunnel approaching to urban structures. Front. Struct. Civ. Eng., 2024, 18(11): 1663-1679.

链接本文:

https://academic.hep.com.cn/fsce/CN/10.1007/s11709-024-1109-8
https://academic.hep.com.cn/fsce/CN/Y2024/V18/I11/1663

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