[1]State Key Laboratory of Coal Mine Disaster Dynamics and Control;
College of Resources and Environmental Science;
Chongqing University;
Chongqing 400044;
China;
[2]Datong Coal Mine Group Co.Ltd.;
Datong 037003;
China;
[1]State Key Laboratory of Coal Mine Disaster Dynamics and Control;
College of Resources and Environmental Science;
Chongqing University;
Chongqing 400044;
China;
[2]Datong Coal Mine Group Co.Ltd.;
Datong 037003;
China;
[1]State Key Laboratory of Coal Mine Disaster Dynamics and Control;
College of Resources and Environmental Science;
Chongqing University;
Chongqing 400044;
China;
Hydraulic fracturing; Hard roof; Stress arch; Fracture deflection; Propagation; RFPA2D-FLOW;