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).
2. Professor, College of Civil Engineering and Architecture, Zhejiang Univ., Hangzhou 310058, China.
3. 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.