作者单位:ZHANG Zhen-guo,YAO Ji-ming,DONG Gui-yu(College of Mining Engineering,Hebei United University,Tangshan Hebei 063009 ,China; Key Laboratory Mineral Development and Security Technology of Hebei Province,Tangshan Hebei 063009, China)张振国,姚纪明,董桂玉(河北联合大学矿业工程学院,河北唐山063009;河北省矿业开发与安全技术重点实验室,河北唐山063009)WANG Yu,JIN Chun-yu,WANG Zhao-sheng,DU Jing-guo,YIN Shi-yan(College of Mining Engineering,Hebei United University,Tangshan Hebei 063009 ,China)王宇,金春玉,王兆生,杜敬国,殷世艳(河北联合大学矿业工程学院,河北唐山063009)