of;
Mines,;
China;
University;
of;
Mining;
and;
Technology,;
Xuzhou;
221116,;
China;
Laboratory;
of;
Deep;
Coal;
Resource;
Mining,;
Ministry;
of;
Education;
of;
China,;
Xuzhou;
221116,;
China;
综采放顶煤开采; 断裂力学模型; 浅煤层; 应用; 放顶煤液压支架; 放顶煤工作面; 放顶煤支架; 断裂力学理论;