Rui Song School of Geoscience and Technology, Southwest Petroleum University, Chengdu 610500, P. R. China;
State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, P. R. China; China
Jun Tian School of Geoscience and Technology, Southwest Petroleum University, Chengdu 610500, P. R. China; China
Mingyang Wu State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, P. R. China; China
Jianjun Liu State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, P. R. China; China