1. State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing 400044, China
2. School of Resources and Safety Engineering, Chongqing University, Chongqing 400044, China
3. State Key Laboratory for Fine Exploration and Intelligent Development of Coal Resources, School of Mines, China University of Mining and Technology, Xuzhou 221116, China
4. Sunjiacha Longhua Mining Co., Ltd., Shaanxi Coal Chemical Industry Group, Yulin 719314, China