School of Energy and Safety Engineering;
Hunan University of Science and Technology;
Xiangtan;
Hunan 411201;
China;
Hunan Provincial Key Laboratory of Safe Mining Techniques of Coal Mines;
Xiangtan;
Hunan 411201;
China;
School of Energy and Mining Engineering;
Liupanshui Normal College;
Liupanshui;
Guizhou 553004;
China;