作者单位:SHI Yun-feng,FENG Xu-dong,WEI Jin-shan(No. 30 Engineering Department of Mine Construction Group Co. , Ltd. of China Coal, Suzhou Anhui 234000, China; DeepMine Well Construction of National Engineering Experiment, Huaibei Anhui 235000, China)施云峰,冯旭东,魏金山(中煤矿山建设集团有限责任公司三十工程处,安徽 宿州 234000;;煤矿深井建设技术国家工程实验,安徽 淮北 235000)