1. Associate Professor, State Key Laboratory for Geomechanics and Deep Underground Engineering, School of Mechanics and Civil Engineering, China Univ. of Mining and Technology, Jiangsu, Xuzhou 221116, China (corresponding author). E-mail: yinshiping7808@aliyun.com
2. Master Degree Candidate, State Key Laboratory for Geomechanics and Deep Underground Engineering, School of Mechanics and Civil Engineering, China Univ. of Mining and Technology, Xuzhou 221116, China.
3. Master Degree Candidate, Jiangsu Key Laboratory of Environmental Impact and Structural Safety in Engineering, School of Mechanics and Civil Engineering, China Univ. of Mining and Technology, Xuzhou 221116, China.