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

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Numerical simulation study on the influence of double-line foundation pit and shallow tunnel on high-pressure tower in loess area

Authors
Yinghua Dang1, Huizhong Lu1, Zheng Liu1, *, Yanxi Zhang1, Xubo Zhang1, Zhaoxiang Song1
1China Construction Third Engineering Bureau, Group CoLtd., Wuhan, China
*Corresponding author. Email: 1072642852@qq.com
Corresponding Author
Zheng Liu
Available Online 14 December 2023.
DOI
10.2991/978-94-6463-316-0_34How to use a DOI?
Keywords
loess area; foundation pit; shallow tunnel; numerical simulation
Abstract

Xi ‘an Tourism Avenue is the main planning road of the north span. Based on the research background of Tourism Avenue, this paper discusses the influence of double-line foundation pit and shallow buried tunnel on high-pressure tower in loess area. The three-dimensional model of foundation pit and tunnel is established by using finite difference software FLAC3D, and the simulation analysis of surface settlement and supporting structure stress induced by different excavation methods of double-line is completed. The numerical simulation shows that the unloading period of staggered excavation is short, the displacement of deep soil is small, the change of soil structure and the change of interaction force are small, which effectively weakens the influence of soil uplift on construction, facilitates the control of stratum uplift and is conducive to construction safety. The larger the excavation surface of the foundation pit, the higher the soil uplift, and the uplift height is inversely proportional to the distance from the monitoring point to the excavation surface; the vertical stress of the unloading support structure of the foundation pit excavation decreases, and the vertical stress of the support structure increases after the soil backfill.

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
10.2991/978-94-6463-316-0_34
ISSN
2352-5401
DOI
10.2991/978-94-6463-316-0_34How 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  - Yinghua Dang
AU  - Huizhong Lu
AU  - Zheng Liu
AU  - Yanxi Zhang
AU  - Xubo Zhang
AU  - Zhaoxiang Song
PY  - 2023
DA  - 2023/12/14
TI  - Numerical simulation study on the influence of double-line foundation pit and shallow tunnel on high-pressure tower in loess area
BT  - Proceedings of the 2023 5th International Conference on Civil Engineering, Environment Resources and Energy Materials (CCESEM 2023)
PB  - Atlantis Press
SP  - 323
EP  - 332
SN  - 2352-5401
UR  - https://doi.org/10.2991/978-94-6463-316-0_34
DO  - 10.2991/978-94-6463-316-0_34
ID  - Dang2023
ER  -