Proceedings of the 2025 8th International Conference on Traffic Transportation and Civil Architecture (ICTTCA 2025)

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Sensitivity Analysis of Local Geological Parameters in Slopes Based on Orthogonal Experiments

Authors
Qi Tian1, *
1School of Architecture and Civil Engineering, Xi’an University of Science and Technology, Xi’an, Shanxi, 710054, China
*Corresponding author. Email: qitian19142662@163.com
Corresponding Author
Qi Tian
Available Online 28 July 2025.
DOI
10.2991/978-94-6463-793-9_89How to use a DOI?
Keywords
geological parameters; slope stability; orthogonal experiment; influencing factors; parameter sensitivity analysis
Abstract

A sensitivity analysis was conducted on two local geological parameters of the tailrace outlet slope at a pumped storage hydropower station to evaluate their influence on local geological displacement and the overall extent of the plastic zone. The analysis aimed to identify the critical factors influencing the slope’s stability under different loading conditions. The results indicate that for relatively gentle slopes, the most significant factor affecting displacement within a given stratum is the elastic modulus, which represents the material’s stiffness and its resistance to deformation. In contrast, the extent of the plastic zone, which indicates areas undergoing permanent deformation, is primarily influenced by Poisson’s ratio. This is followed by the internal friction angle and cohesion, which also contribute to the overall behavior of the slope but to a lesser extent. These findings highlight the importance of carefully considering these parameters when assessing slope stability in such projects.

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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Volume Title
Proceedings of the 2025 8th International Conference on Traffic Transportation and Civil Architecture (ICTTCA 2025)
Series
Atlantis Highlights in Engineering
Publication Date
28 July 2025
ISBN
978-94-6463-793-9
ISSN
2589-4943
DOI
10.2991/978-94-6463-793-9_89How to use a DOI?
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.

Cite this article

risenwbib
TY  - CONF
AU  - Qi Tian
PY  - 2025
DA  - 2025/07/28
TI  - Sensitivity Analysis of Local Geological Parameters in Slopes Based on Orthogonal Experiments
BT  - Proceedings of the 2025 8th International Conference on Traffic Transportation and Civil Architecture (ICTTCA 2025)
PB  - Atlantis Press
SP  - 1040
EP  - 1052
SN  - 2589-4943
UR  - https://doi.org/10.2991/978-94-6463-793-9_89
DO  - 10.2991/978-94-6463-793-9_89
ID  - Tian2025
ER  -