Deformation Control for Foundation Pit Segmented Construction Adjacent to Operational High-speed Railway Lines

Objective Limited land use resource and arrangement adjacent to operational high-speed railway lines pose significant challenges to some city foundation pit constructions and the railway operational safety. To reasonably predict and control the foundation pit and adjacent high-speed railway subgrade...

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Bibliographic Details
Published inChengshi Guidao Jiaotong Yanjiu Vol. 27; no. 8; pp. 223 - 226
Main Authors LI Xiaolong, LIAO Weilian, XIAO Fei, CHEN He, DI Honggui, HE Shuqi
Format Journal Article
LanguageChinese
Published Urban Mass Transit Magazine Press 01.08.2024
Subjects
deformation control
foundation pit
operational high-speed railway line
segmented construction
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Summary:Objective Limited land use resource and arrangement adjacent to operational high-speed railway lines pose significant challenges to some city foundation pit constructions and the railway operational safety. To reasonably predict and control the foundation pit and adjacent high-speed railway subgrade deformations, it is necessary to conduct deformation control studies on foundation pit construction. Method Based on an open-cut foundation pit near a high-speed railway subgrade in Shanghai, Plaxis 3D software is used to analyze the impact of different foundation pit segmented construction lengths on the enclosure structure and adjacent high-speed railway subgrade, and the deformation control effectiveness of segmented construction on foundation pit itself and adjacent high-speed railway subgrade is analyzed according to field-measured data. Result & Conclusion Segmented construction can effectively reduce the deformation of both the foundation pit enclosure structure and the existing high-speed railway subgrade.
ISSN:1007-869X
DOI:10.16037/j.1007-869x.2024.08.038