Study on influencing characteristics of vertical penetrating crack on instability and breaking of hard roof
WANG Haiyang, ZHAO Shulei, LIU Jialiang, XIA Binwei, LI Shoulong
China Safety Science Journal . 2020, (1): 66 -72 .  DOI: 10.16265/j.cnki.issn1003-3033.2020.01.011