Funding for this research was provided by:
National Natural Science Foundation of China (51674265, 51704125, 51674154, 51874188)
China Postdoctoral Science Foundation (2017T100491, 2016M602144)
Natural Science Foundation of Shandong Province (2018GGX109001, ZR2017QEE013, 2017GGX30101)
State Key Laboratory for GeoMechanics and Deep Underground Engineering (SKLGDUEK1717)
Article History
Received: 28 December 2018
Accepted: 28 January 2020
First Online: 4 February 2020