Study on Deformation Mechanism and Stability Analysis of Mined-Out Areas in Small Coal Mines

DOI

10.2991/978-94-6463-780-9_33How to use a DOI?

Keywords

Mined-out area; Deformation mechanisms; Stability analysis; Limit equilibrium; Numerical simulation

Abstract

The mined-out areas of small coal mines are characterized by strong concealment and irregular distribution, and the deformation and failure mechanisms of overlying rock and soil masses in these areas present significant technical challenges for stability analysis in surface engineering construction. Through theoretical analysis and field investigations combined with engineering practices in small coal mine goaf areas, this study explores deformation mechanisms and stability analysis methods. Research indicates that the deformation of small coal mine goaf areas results from the combined effects of multiple factors, including the ratio of mining depth to thickness, dip angle of overlying strata, and hydrogeological conditions. Based on the deformation patterns of overlying strata in mined-out areas, a stability evaluation method integrating classical limit equilibrium theory calculations with numerical simulations was proposed. By coupling the maximum residual deformation value and conducting deep ground displacement monitoring, the cumulative maximum deformation remains below the maximum residual deformation threshold. These research outcomes provide theoretical foundations and practical guidance for stability analysis in engineering construction within small coal mine goaf areas, demonstrating significant engineering application value.

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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TY  - CONF
AU  - Xufeng Zhuang
AU  - Xiao Yu
AU  - Chengyang Mao
AU  - Shiyu Yi
AU  - Aibin Cao
PY  - 2025
DA  - 2025/07/03
TI  - Study on Deformation Mechanism and Stability Analysis of Mined-Out Areas in Small Coal Mines
BT  - Proceedings of the 2025 International Conference on Engineering Management and Safety Engineering (EMSE 2025)
PB  - Atlantis Press
SP  - 358
EP  - 366
SN  - 2352-5401
UR  - https://doi.org/10.2991/978-94-6463-780-9_33
DO  - 10.2991/978-94-6463-780-9_33
ID  - Zhuang2025
ER  -