作者单位:ZHA Wen-Hua(Key Laboratory of Mine Safety and High Efficient Miningcosponsored by Anhui Province and Ministry of Education,Anhui University of Science and Technology,Huainan Anhui 232001 ,China)查文华(安徽理工大学煤矿安全高效开采省部共建教育部重点实验室,安徽淮南232001)HUA Xin-zhu(School of Energy and Safety,Anhui University of Science and Technology,Huainan Anhui 232001 ,China)华心祝(安徽理工大学能源与安全学院,安徽淮南232001)