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

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Grey Correlation Analysis of Factors Influencing the Stability of Loess Strata in Shield Tunneling

Authors
Haijun Zhao1, Heyi Liu2, *, Jiangrong Pei2, Tiannan Chen2
1Shandong Huake Planning and Architectural Design CO., LTD., Liaocheng, 252000, China
2China Institute of Water Resources and Hydropower Research, Beijing, 100048, China
*Corresponding author. Email: heyiliu0914@163.com
Corresponding Author
Heyi Liu
Available Online 24 April 2024.
DOI
10.2991/978-94-6463-398-6_60How to use a DOI?
Keywords
Loess strata; Grey correlation analysis; Sensitivity analysis; Surrounding rock displacement; FLAC3D
Abstract

In the context of shield tunneling through loess strata, this study utilizes a refined simulation model in FLAC3D to calculate a total of 30 parameters associated with five factors influencing the maximum displacement of the surrounding rock. Through grey correlation analysis, the impact of each factor on tunnel stability is assessed. The results indicate that the maximum displacement of the surrounding rock exhibits a decreasing trend with an increase in the silo pressure, grouting material strength, and soil deformability, while it shows an increasing trend with greater tunnel depth and soil density. Both tunnel depth and soil density exhibit grey correlation coefficients exceeding 0.9, establishing them as the predominant factors influencing tunnel stability. Silo pressure, grouting material strength, and soil deformability all demonstrate grey correlation coefficients of approximately 0.5, designating them as secondary factors in this analysis.

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
10.2991/978-94-6463-398-6_60
ISSN
2589-4943
DOI
10.2991/978-94-6463-398-6_60How 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  - Haijun Zhao
AU  - Heyi Liu
AU  - Jiangrong Pei
AU  - Tiannan Chen
PY  - 2024
DA  - 2024/04/24
TI  - Grey Correlation Analysis of Factors Influencing the Stability of Loess Strata in Shield Tunneling
BT  - Proceedings of the 2023 5th International Conference on Hydraulic, Civil and Construction Engineering (HCCE 2023)
PB  - Atlantis Press
SP  - 609
EP  - 620
SN  - 2589-4943
UR  - https://doi.org/10.2991/978-94-6463-398-6_60
DO  - 10.2991/978-94-6463-398-6_60
ID  - Zhao2024
ER  -