1. State Key Laboratory for Fine Exploration and Intelligent Development of Coal Resources, China University of Mining and Technology, Xuzhou, China
2. School of Mines, China University of Mining and Technology, Xuzhou, China
3. State Key Laboratory for Geomechanics & Deep Underground Engineering, China University of Mining and Technology (Beijing), Beijing, China
4. Wenshang Yiqiao Coal Mine Co., Ltd, Jining Energy Development Group Co., Ltd, Jining, China