Proceedings of the 2025 8th International Conference on Civil Architecture, Hydropower and Engineering Management (CAHEM 2025)

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Deformation and Stability of Slope in Collapse Area of Upper Reservoir in Zhen’an Pumped Storage Power Station

Authors
Ying Zhang1, 2, *, Shengjie Di1
1Northwest Engineering Corporation Limited, Power China, Xi’an, Shaanxi, 710065, China
2High Slope and Geological Disaster Research and Control Sub-center, China Hydropower Technology Research and Development Centre, Xi’an, Shaanxi, 710065, China
*Corresponding author. Email: zhangying@nwh.cn
Corresponding Author
Ying Zhang
Available Online 26 February 2026.
DOI
10.2991/978-94-6239-600-5_4How to use a DOI?
Keywords
pumped storage power station; numerical simulation; limit equilibrium method
Abstract

Collapses in hydropower station slopes not only severely impact project operations but may also cause catastrophic consequences. By coupling numerical simulation with the limit equilibrium method, this paper investigates the reasons for the collapse of Zhen’an Pumped Storage Power Station by analyzing slope instability caused by special geological conditions. Results show that gently dipping structural planes decisively affect slope deformation and stability. The safety factor is 1.43 without considering structural plane connectivity but drops to 0.97, with maximum displacement increasing from 4.1 cm to 8.1 cm when connectivity is considered. The findings provide theoretical and engineering references for slope design and construction.

Copyright
© 2026 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 Civil Architecture, Hydropower and Engineering Management (CAHEM 2025)
Series
Advances in Engineering Research
Publication Date
26 February 2026
ISBN
978-94-6239-600-5
ISSN
2352-5401
DOI
10.2991/978-94-6239-600-5_4How to use a DOI?
Copyright
© 2026 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  - Ying Zhang
AU  - Shengjie Di
PY  - 2026
DA  - 2026/02/26
TI  - Deformation and Stability of Slope in Collapse Area of Upper Reservoir in Zhen’an Pumped Storage Power Station
BT  - Proceedings of the 2025 8th International Conference on Civil Architecture, Hydropower and Engineering Management (CAHEM 2025)
PB  - Atlantis Press
SP  - 22
EP  - 30
SN  - 2352-5401
UR  - https://doi.org/10.2991/978-94-6239-600-5_4
DO  - 10.2991/978-94-6239-600-5_4
ID  - Zhang2026
ER  -