Proceedings of the 2024 8th International Conference on Civil Architecture and Structural Engineering (ICCASE 2024)

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Deformation Pattern of Metro Foundation Pits in Coastal Areas of China: A Statistical Analysis

Authors
Qing Cao1, Junjie Yuan1, Xuqun Zhang2, Pei Tai1, 3, *, Rui Chen1, 3
1School of Civil and Environmental Engineering, Harbin Institute of Technology, Shenzhen, Shenzhen, Guangdong, 518055, China
2Guangzhou Metro Design & Research Institute Co., Ltd, Guangzhou, Guangdong, 510010, China
3Guangdong Provincial Key Laboratory of Intelligent and Resilient Structures for Civil Engineering, Shenzhen, 518055, China
*Corresponding author. Email: taipei@hit.edu.cn
Corresponding Author
Pei Tai
Available Online 30 June 2024.
DOI
10.2991/978-94-6463-449-5_21How to use a DOI?
Keywords
Statistical analysis; Silty clay; Excavation; Support structures
Abstract

In coastal regions of China, extensive areas are characterized by deep and thick silty clay deposits, necessitating excavation and support during engineering construction. This study gathers excavation examples from existing literature and aims to summarize and analyze the deformation characteristics of support structures and the soil behind these structures (supporting walls) resulting from excavation. The findings demonstrate a general trend of increasing maximum lateral displacement of the supporting wall with greater excavation depth. The ratio of maximum lateral displacement to excavation depth falls within the range of 0.18% to 0.64%, while the insertion ratio spans from 0.78 to 1.23. The ratio of maximum ground settlement behind the wall to excavation depth varies between 0.28% and 0.82%. Additionally, the ratio of maximum ground settlement behind the wall to the maximum lateral displacement of the wall ranges from 0.93 to 1.81. The statistical analysis results presented here offer valuable references for the design and construction of excavations in regions characterized by deep and thick silty clay deposits. Moreover, the statistical results can serve as qualitative verification for finite element analysis in specific cases.

Copyright
© 2024 The Author(s)
Open Access
Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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Volume Title
Proceedings of the 2024 8th International Conference on Civil Architecture and Structural Engineering (ICCASE 2024)
Series
Atlantis Highlights in Engineering
Publication Date
30 June 2024
ISBN
10.2991/978-94-6463-449-5_21
ISSN
2589-4943
DOI
10.2991/978-94-6463-449-5_21How to use a DOI?
Copyright
© 2024 The Author(s)
Open Access
Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

Cite this article

risenwbib
TY  - CONF
AU  - Qing Cao
AU  - Junjie Yuan
AU  - Xuqun Zhang
AU  - Pei Tai
AU  - Rui Chen
PY  - 2024
DA  - 2024/06/30
TI  - Deformation Pattern of Metro Foundation Pits in Coastal Areas of China: A Statistical Analysis
BT  - Proceedings of the 2024 8th International Conference on Civil Architecture and Structural Engineering (ICCASE 2024)
PB  - Atlantis Press
SP  - 210
EP  - 223
SN  - 2589-4943
UR  - https://doi.org/10.2991/978-94-6463-449-5_21
DO  - 10.2991/978-94-6463-449-5_21
ID  - Cao2024
ER  -