A discussion about boundary conditions in numerical simulation and its application in mining-induced rock mass movement
作者单位：Key Laboratory of Engineering GeomechanicsInstitute of Geology and GeophysicsChinese Academy of Sciences
会议名称：《中国科学院地质与地球物理研究所2012年度（第12届）学术年会》
会议日期：2013年
学科分类：081901[工学-采矿工程] 0819[工学-矿业工程] 08[工学]
基 金：supported by the National Natural Science Foundation of China project(41002107,40972197,and 41030750) the important direction project of Chinese Academy of Sciences knowledge innovation project(KZCX2- YW-Q03-02)
关 键 词：numerical modeling rock stress mining rock mass
摘 要：In numerical simulation of excavation in high tectonic stress field,the correctness of initial geo-stress field obtained by numerical simulation directly influences the final *** on a series of discussions,an improved effective method for back analysis of initial geo-stress was established and carried out by FLAC *** study the special effects of high tectonic stress on excavating works,a typical mining-induced ground movement caused by underground mining in Jinchuan No.2 mine is *** results indicated that the back analysis method can achieve reasonable and reliable initial geo-stress *** of different mechanisms of rock mass movement in high tectonic stress field,the mining-induced ground movement has distinctive characteristics compared with level coal mining.