Deformation and Failure Characteristics of Complex Jointed Rock Slopes Under Mining Action: A Case Study of the Fa’er Landslide in Guizhou, China

DOI

10.2991/978-94-6239-600-5_12How to use a DOI?

Keywords

mining action; slopes; complex jointed rock masses; deformation failure

Abstract

Structural characteristics exert a controlling influence on rock mass mechanical properties and engineering stability. Particularly in the mountainous regions of southwest China, mining activities exacerbate the instability of rock mass structures, increasing the risk of collapse and landslide disasters. Investigating their deformation and failure characteristics is crucial for preventing geological hazards. Based on an analysis of the geological environment and structural characteristics of the Fa’er landslide triggered by mining activities at the Fa’er Coal Mine in Guizhou Province, this study employs the discrete element method to construct a numerical model. Through laboratory testing and parameter calibration, it simulates the deformation and failure process of the slope under mining disturbance. The numerical simulation analysis reveals the deformation and failure characteristics of the Fa’er landslide under mining disturbance, encompassing stages such as natural evolution, mining disturbance, collapse subsidence deformation, and crown tensile fracturing deformation. Collapse in the goaf area causes bending and settlement of the overlying strata over the coal seam, forming fractures that may ultimately trigger slope collapse and sliding. The deformation-failure mechanism can be summarized as “goaf-subsidence-tensile fracturing-creep sliding-shear sliding.” These findings provide scientific basis for assessing slope stability and preventing geological hazards caused by coal mining goafs. They hold significant practical value for safeguarding roads and public safety near slopes, ensuring secure coal mining operations.

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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TY  - CONF
AU  - Yu Wu
AU  - Jie Huang
AU  - Shuyi Zheng
AU  - Xiaohu Zheng
AU  - Dengsheng Cai
AU  - Donglei Zhao
AU  - Dandan Liu
PY  - 2026
DA  - 2026/02/26
TI  - Deformation and Failure Characteristics of Complex Jointed Rock Slopes Under Mining Action: A Case Study of the Fa’er Landslide in Guizhou, China
BT  - Proceedings of the 2025 8th International Conference on Civil Architecture, Hydropower and Engineering Management (CAHEM 2025)
PB  - Atlantis Press
SP  - 107
EP  - 119
SN  - 2352-5401
UR  - https://doi.org/10.2991/978-94-6239-600-5_12
DO  - 10.2991/978-94-6239-600-5_12
ID  - Wu2026
ER  -