Open Access

ARTICLE

Research on Instability Mechanism and Type of Ore Pillar based on the Fold Catastrophe Theory

Zhengzheng Cao¹, Feng Du^2,3,4, Zhenhua Li², Qinting Wang¹, Ping Xu¹, Haixiao Lin¹

1 School of Civil Engineering, Henan Polytechnic University, Jiaozuo 454000, China
2 School of Energy and Engineering, Henan Polytechnic University, Jiaozuo 454000, China
3 State Key Laboratory of Coal Resources and Safe Mining, China University of Mining and Technology, Xuzhou 221116, China
4 Corresponding author: Feng Du. Tel.: +86 18639168883. E-mail address: dufeng@hpu.edu.cn.