作者单位:Zhang Kangshun(Shennan Coal Mining Company,Shaanxi Coal Mining and Chemical Group,Shenmu,719300,Shaanxi,China)张康顺(陕煤化集团神南煤业公司 陕西神木 719300)Su Peili(School of Architecture and Civil Engineering,Xi'an University of Science and Technology,Xi'an,710054,Shaanxi,China)苏培莉(西安科技大学建筑与土木工程学院 陕西西安 710054)