1. College of Safety and Environmental Engineering, Shandong University of Science and Technology, Qingdao, China
2. Key Laboratory of Safety and High-efficiency Coal Mining, Ministry of Education(Anhui University of Science and Technology), Huainan, China
3. State Key Laboratory of Mining Disaster Prevention and Control Co-founded by Shandong Province and the Ministry of Science and Technology, Shandong University of Science and Technology, Qingdao, China
4. College of Civil & Structural Engineering, Shandong University of Science and Technology, Qingdao, China