1. College of Civil Engineering, Henan Polytechnic University, Jiaozuo, People’s Republic of China
2. Technology Research & Development Center, China Railway First Group Co., Ltd, Xi’an, People’s Republic of China
3. College of Energy Science and Engineering, Xi´an University of Science and Technology, Xi’an, People’s Republic of China
4. Key Laboratory of Western Mine Exploitation and Hazard Prevention of Ministry of Education, Xi’an, People’s Republic of China