State;
Key;
Laboratory;
for;
Geomechanics;
&;
Deep;
Underground;
Engineering,;
Xuzhou,;
Jiangsu;
221008,;
China;
School;
of;
Architecture;
&;
Civil;
Engineering,;
China;
University;
of;
Mining;
&;
Technology,;
Xuzhou,;
Jiangsu;
221116,;
China;
11th;
Coal;
Mine;
of;
Pingdingshan;
Coal;
Co.,;
Ltd,;
Pingdingshan,;
Henan;
467000,;
China;