1. School of Emergency Management Xihua University Chengdu China
2. Emergency Science Research Academy Chinese Institute of Coal Science, China Coal Technology and Engineering Group Co., Ltd. Beijing China
3. Hebei Key Laboratory of Mine Intelligent Unmanned Mining Technology North China Institute of Science and Technology Langfang China
4. College of Civil Engineering Sichuan University of Science and Engineering Zigong China
5. Key Laboratory of Shale Gas Exploration, Ministry of Natural Resources Chongqing Institute of Geology and Mineral Resources Yubei China