1. Institute of Mechanics, Chinese Academy of Sciences, Beijing 100190, China
2. University of Chinese Academy of Sciences, Beijing 100049, China
3. Department of Mechanical and Aerospace Engineering, George Washington University, Washington, DC 20052, USA
4. College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou 310014, China
5. State Key Laboratory for Geomechanics and Deep Underground Engineering, School of Mechanics and Civil Engineering, China University of Mining and Technology, Xuzhou 221116, China