摘要
采用三维数值模拟程序对露井联采下的边坡稳定性进行研究,结果表明,井工工作面开切眼位置对露天边坡的稳定起到关键作用。利用数值模拟计算方法对边界参数进行优化,得出当井工开切眼与边坡之间水平距离在原基础上增加20m时,边坡的整体稳定性将得到明显改善。相似模拟试验同样验证了此优化方案的合理性。此方案已在现场应用,保证了露天边坡稳定和安全生产。
3D numerical program is used to analyze the stability of the slope affected by underground excavation.Research show that the open-off cut position plays a key role in the slope stability.The numerical simulation is conducted to optimize this boundary parameter,and the results shows that the slope stability is improved to ensure the safe production when the horizontal distance between open-off cut and slope increases to 20 m based on the original data.At the same time,the material simulation method is used to make sure of the scheme.The slope is stable when the scheme is adopted in field.
出处
《岩石力学与工程学报》
EI
CAS
CSCD
北大核心
2009年第A02期3971-3977,共7页
Chinese Journal of Rock Mechanics and Engineering
关键词
采矿工程
露井联采
数值模拟
边坡稳定
开切眼位置
mining engineering
combined open-underground mining
numerical simulation
slope stability
open-off cut position
