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

Zhengzheng Cao1, Feng Du2,3,4, Zhenhua Li2, Qinting Wang1, Ping Xu1, Haixiao Lin1

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

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