Proceedings of the 2023 5th International Conference on Civil Engineering, Environment Resources and Energy Materials (CCESEM 2023)

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Study on Supporting Structure Design for Deep Foundation Pit in Water-rich Stratum

Authors
Xiaofeng Qin1, Miao Zhang2, Ao Huang3, *, Wen Liu2, Shangang Wang2
1China Communications (Guangzhou) Construction Co., Ltd, Wuhan, Hubei, China
2CCC Wuhan Zhi Xing International Engineering Consultation Company Limited, Wuhan, Hubei, China
3School of Civil and Hydraulic Engineering, Huazhong University of Science and Technology, Wuhan, Hubei, China
*Corresponding author. Email: 63140506@qq.com
Corresponding Author
Ao Huang
Available Online 14 December 2023.
DOI
10.2991/978-94-6463-316-0_40How to use a DOI?
Keywords
Water-rich strata; deep foundation pit; enclosure structure; force analysis
Abstract

The construction and development of underground space are of great strategic significance for optimizing urban spatial layout and comprehensively utilizing land resources. With the rapid development of underground ring roads and public space, the construction of large-scale deep foundation pits in water-rich strata becomes increasingly tricky. How to analyze the stability and optimize the design of foundation pit supporting structures is a technical problem that has been tackled by scholars in recent years.Based on an underground space comprehensive development project, this paper will determine that the enclosure structure composed of 30m ultra-long borehole filling column, concrete support and steel pipe support has good applicability to the project through a comprehensive comparison of the existing foundation pit support technology.Meanwhile, the internal force, deformation, stability, and overturning resistance of the enclosure structure achieved by the supporting scheme under different construction conditions were checked and analyzed in detail. Then, the calculation results were comprehensively compared with the deformation control standards of supporting structures. Taking pile A as an example, the sliding safety factor, anti-overturning and anti-uplift stability coefficients when excavated to 0 .8m are 3.38, 1.87 and 3.33, respectively, which meet the theoretical value requirements.The calculation results show that the supporting structure of the project has good stability, which has a certain reference significance for the optimal design of supporting schemes in similar foundation pit projects.

Copyright
© 2023 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 2023 5th International Conference on Civil Engineering, Environment Resources and Energy Materials (CCESEM 2023)
Series
Advances in Engineering Research
Publication Date
14 December 2023
ISBN
978-94-6463-316-0
ISSN
2352-5401
DOI
10.2991/978-94-6463-316-0_40How to use a DOI?
Copyright
© 2023 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  - Xiaofeng Qin
AU  - Miao Zhang
AU  - Ao Huang
AU  - Wen Liu
AU  - Shangang Wang
PY  - 2023
DA  - 2023/12/14
TI  - Study on Supporting Structure Design for Deep Foundation Pit in Water-rich Stratum
BT  - Proceedings of the 2023 5th International Conference on Civil Engineering, Environment Resources and Energy Materials (CCESEM 2023)
PB  - Atlantis Press
SP  - 387
EP  - 401
SN  - 2352-5401
UR  - https://doi.org/10.2991/978-94-6463-316-0_40
DO  - 10.2991/978-94-6463-316-0_40
ID  - Qin2023
ER  -