1. State Key Laboratory for Geomechanics and Deep Underground Engineering (Beijing), and Department of Civil Engineering, School of Mechanics and Civil Engineering, China University of Mining and Technology (Beijing), Beijing 100083, China, https://orcid.org/0000-0002-7141-3908 (C.D.)
2. Civil and Resource Engineering School, University of Science and Technology Beijing, Beijing 100083, China
3. State Key Laboratory for Geomechanics and Deep Underground Engineering (Beijing), and Department of Civil Engineering, School of Mechanics and Civil Engineering, China University of Mining and Technology (Beijing), Beijing 100083, China (Corresponding author), e-mail: cchencumtb@126.com, http://orcid.org/0000-0002-2770-2454
4. School of Civil Engineering, North China University of Technology, Beijing 100144, China