1. Shaanxi Key Laboratory of Geotechnical and Underground Space Engineering, Xi'an University of Architecture and Technology, Xi'an, China, 710055.
2. Failure Mechanics & Engineering Disaster Prevention and Mitigation, Key Laboratory of Sichuan Province, Sichuan University, Chengdu, China, 610065.
3. Aeronautics Engineering College, Air Force Engineering University, Xi'an, China, 710038.