露天与地下联合开采采空区稳定性分析  

Analysis on Goaf Stability for Combined Mining in Open-Pit and Underground

作　　者：吴国兴[1] 

机构地区：[1]昆明有色冶金设计研究院股份公司,云南昆明650051

出　　处：《有色金属设计》2012年第1期1-5,共5页Nonferrous Metals Design

摘　　要：针对拉拉铜矿露天与地下联合开采的复杂情况,采用FLAC3D分析一定的隔离矿柱支撑下采空区围岩变形及破坏特征。依据岩石力学摩尔—库伦准则,采用FLAC3D内嵌的FISH语言定义了剪切安全度及拉伸安全度两种破坏判据。依据模拟结果,为施工设计提供理论依据。Based on complex situation of combined open and underground mining in Lala Copper Mine, the rock deformation and failure features of goaf surrounding rock under the support of isolated FLAC3D software. In accordance with Moore - Coulomb criterion of rock mechanics, two - tensile safety were defined by using Fish language embedded in FLAC3D. On the basis theoretical basis are provided for mining and construction design. pillar were analyzed by failure criterion of shear of the simulated results,

关 键 词：围岩变形 采空区 剪切安全度 拉伸安全度 

分 类 号：TD864[矿业工程—金属矿开采]