摘要
基于急倾斜煤层巷道围岩控制理论及锚固结构支护原理,设计了大安山煤矿13槽煤层巷道锚网索+‘7’字架联合支护方案,确定了支护参数。运用FLAC3D数值模拟软件,对巷道掘进后位移场和应力场演化规律及支护体受力状态进行了仿真分析,结果表明,巷道围岩变形得到了有效的控制,支护体受力状态均在屈服强度以下,证明了支护方案是切实可行的。
Roadway on steep seam anchor structure control theory and principles supporting the design of the Da An＇shan coal mine seam roadway 13 slot Cable ＋ ＂7＂ character frame combined support programs,support parameters determined.FLAC3D numerical simulation software used on the roadway driving the displacement and stress field evolution and support the Force of the state of the simulation results show that the deformation of surrounding rock has been effectively controlled,the stress state support system were yield strength below that of the support scheme is practicable.
出处
《微计算机信息》
2010年第34期255-256,214,共3页
Control & Automation
关键词
急倾斜
锚网支护
数值模拟
steep
bolting with wire mesh
numerical simulation
