摘要
以某露天矿岩质边坡为工程背景,运用数值模拟软件FLAC3D对开挖过程中岩质边坡体开挖方向上的应力演化和变形规律进行了数值模拟研究。研究结果表明:采场上盘边坡的稳定性较差,每步开挖对岩体均有破坏性扰动,沿片理的台阶型破坏与整体失稳的可能性较大。提出了削坡减载的边坡治理方案,并采用极限平衡方法分析治理后边坡稳定性,保证露天矿的安全生产。
Taken a rock slope of an open-pit mine as an project background, the stress evolution and the law of deformation on the excavation direction of rock slope during the excavation process was simulated by FLAC3D. The result shows that the stability of hanging slope in the mining is poorer, each step of rock mass excavation arc destructive disturbance. It is likely that the destruction along the steps occurs and the overall stability loses, putting forward the programs of cutting slope and reducing load slope, and using the limit equilibrium method to analysis of slope stability after management to ensure the safety of open-pit mine production.
出处
《金属矿山》
CAS
北大核心
2012年第10期9-10,14,共3页
Metal Mine
基金
国家自然科学基金重点项目(编号:51034001)
关键词
边坡治理
安全评价
稳定性
数值模拟
Slope treatment, Safety evaluation, Stability, Numerical simulation
