Proceedings of the 2023 5th International Conference on Hydraulic, Civil and Construction Engineering (HCCE 2023)

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Study on the Impact of Bridge Pile Excavation on the Stability of Deep Loose Deposits Slope

Authors
Zelin Zhou1, Lei Zhu1, Zhibo Li1, Maoyi Liu2, *
1China 19th Metallurgical Corporation Chengdu, Sichuan, 610000, China
2Chongqing Construction Investment (Group) Co., Ltd., Chongqin, 400010, China
*Corresponding author. Email: maoyiliu2023@163.com
Corresponding Author
Maoyi Liu
Available Online 24 April 2024.
DOI
10.2991/978-94-6463-398-6_20How to use a DOI?
Keywords
Slope; Artificial Disturbance; Numerical Simulation
Abstract

This paper takes the deep deposit slope of Longwangxi as a case study. Using the method of strength reduction, the stability of pre-disturbance and post-disturbance conditions is calculated separately to investigate the influence of human-induced disturbances during bridge pile construction on slope stability. The research results indicate that excavation operations lead to a decrease in the safety factor of slope stability by 7.1% to 11.7%. It is recommended to provide slope support before bridge pile construction. Plastic zones and areas with significant displacements are mainly observed in the upper and lower portions of steep slopes, while the middle section with gentler slopes remains in a stable state. It is advisable to implement slope support measures separately for the upper and lower parts of the slope. Additionally, human-induced disturbances may result in significant displacement zones in the root zone of isolated boulders above the slope, leading to instability. Therefore, it is suggested to focus on stabilizing the root soil of isolated boulders when addressing their instability and to implement targeted measures before commencing bridge pile construction.

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 2023 5th International Conference on Hydraulic, Civil and Construction Engineering (HCCE 2023)
Series
Atlantis Highlights in Engineering
Publication Date
24 April 2024
ISBN
978-94-6463-398-6
ISSN
2589-4943
DOI
10.2991/978-94-6463-398-6_20How 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  - Zelin Zhou
AU  - Lei Zhu
AU  - Zhibo Li
AU  - Maoyi Liu
PY  - 2024
DA  - 2024/04/24
TI  - Study on the Impact of Bridge Pile Excavation on the Stability of Deep Loose Deposits Slope
BT  - Proceedings of the 2023 5th International Conference on Hydraulic, Civil and Construction Engineering (HCCE 2023)
PB  - Atlantis Press
SP  - 200
EP  - 209
SN  - 2589-4943
UR  - https://doi.org/10.2991/978-94-6463-398-6_20
DO  - 10.2991/978-94-6463-398-6_20
ID  - Zhou2024
ER  -