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;