xin liu mei kuang da duan mian yan xiang ding xiang duan lie bao po ji shu yan jiu
QIN Dao-xiong1;3;LI Qing2;TANG Xian-yin2;DU Qing-fang2;LI Hui-peng2;ZHANG Xiao-shuai2;Beijing 100083;China;2.School of Mechanics & Civil Engineering;China University of Mining and Technology;Beijing 100083;China;3.Hunan Coal Industry Group Co.;Ltd.;Changsha 410001;China)