Study on the Effect of Multiple Excavation Depth Pit Excavation on the Deformation of Enclosure Structure and Surrounding Buildings under Asymmetric Loading

DOI

10.2991/978-94-6463-726-7_11How to use a DOI?

Keywords

Excavation; Asymmetric load; Multiple excavation depths; Deformation of enclosure structure; Building deformation

Abstract

To manage ground displacement during unevenly loaded, deep excavation, the impact of asymmetric load on surrounding areas during multi-depth foundation pit excavation is analyzed. An example is drawn from a deep open-cut foundation pit for an underpass tunnel in Wenzhou city. FLAC3D is used to simulate the deformation of foundation pit excavation on the envelope structure and surrounding buildings. The research results indicate that when multi-depth foundation pit is excavated Under asymmetric load, the excavation depth close to the building side will significantly increase the deformation of the supporting pile and the settlement of the building, and the maximum deformation position of the supporting pile will move downward. Moreover, as the edge distance of the excavation site expands, the horizontal displacement of the support piles nearest to the building side diminishes, while those farther away experience an increase in their horizontal displacement. The structure’s subsidence diminishes as the excavation border widens; this reduction decelerates concurrently.

Copyright

© 2025 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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TY  - CONF
AU  - Yiyuan Feng
AU  - Wenbin Zhou
AU  - Ziya Xu
AU  - Yi Yu
AU  - Laingyu Wu
PY  - 2025
DA  - 2025/06/13
TI  - Study on the Effect of Multiple Excavation Depth Pit Excavation on the Deformation of Enclosure Structure and Surrounding Buildings under Asymmetric Loading
BT  - Proceedings of the 2024 6th International Conference on Hydraulic, Civil and Construction Engineering (HCCE 2024)
PB  - Atlantis Press
SP  - 104
EP  - 113
SN  - 2589-4943
UR  - https://doi.org/10.2991/978-94-6463-726-7_11
DO  - 10.2991/978-94-6463-726-7_11
ID  - Feng2025
ER  -