1. College of Mining and Safety Engineering Shandong University and Science and Technology Qingdao Shandong China
2. Shandong Key Laboratory of Civil Engineering Disaster Prevention and Mitigation Shandong University of Science and Technology Qingdao Shandong China
3. School of Resources and Safety Engineering Central South University Changsha Hunan China
4. Shandong Provincial geo‐mineral Engineering Co. Ltd Jinan Shandong China