作者单位:Deng Zengshe(Dongjiahe Coal Mine,Chenghe Coal Mining Company Limited,Shaanxi Coal and Chemical Industry Group Co.,Ltd,Weinan,715200,Shaanxi China)邓增社(陕西陕煤集团澄合矿业有限公司董家河煤矿 陕西渭南 715200)Liu Hui(School of Civil Engineering and Architecture,Xi'an University of Science and Technology,Xi'an,710054,Shaanxi,China)刘慧(西安科技大学建筑与土木工程学院 陕西西安 710054)