作者单位:Qiao Jianhua(Shaanxi Chenghe Coal Mining Group Company,Weinan,715200,Shaanxi,China)乔建华(陕西陕煤澄合矿业有限公司 陕西渭南 715200)Zhu Bin(School of Architecture and Civil Engineering,Xi'an University of Science and Technology,Xi'an,710054,Shaanxi,China)朱彬(西安科技大学建筑与土木工程学院 陕西西安 710054)