作者单位:Zheng Qiming,Shi Songlin(School of Resources and Environment Engineering, Henan Institute of Engineering, Zhengzhou, Henan, 451191, China;School of Geological Science and Survey Engineering, China University of Mining and Technology, Beijing 100083, China)Liu Qinfu(School of Geological Science and Survey Engineering, China University of Mining and Technology, Beijing 100083, China)