摘要
平硐追脉开采挂帮矿破坏了边坡岩体结构,使边坡岩体内应力重新分布,影响了边坡的稳定性。利用ANSYS有限元大型数值模拟分析软件,通过建立石人沟铁矿追脉开采露天高边坡三维数值模型,进行数值模拟计算,分析残采边坡的稳定性,得到结论:平硐追脉开采对石人沟铁矿露天边坡整体稳定性影响不大,残采边坡是稳定的,但应加强平硐硐口和采空区顶板的支护和管理。
The veining up mining of hanging wall ore destroys the slope rock structure,redistributes the stress of slope rock,and affects the stability of slope.Taking the veining up the hanging wall ore residual slope of Shirengou Iron Mine for example,three-dimensional numerical model of veining up mining of the high residual slope of Shirengou Iron Mine is established,and stability of residual slope are analyzed through calculating with numerical simulation by using the large-scale finite element numerical simulation analysis software of ANSYS. The conclusion shows that this mining has little effects on the overall stability of the open pit slope of Shirengou iron ore, and the mining of residual slope is stable, but the supporting and management of roof at tunnel exit and goaf should be strengthened.
出处
《金属矿山》
CAS
北大核心
2009年第12期50-52,60,共4页
Metal Mine
基金
河北省自然科学基金项目(编号:E2009000782)
河北省教育厅计划项目(编号:2007454)。
关键词
追脉开采
位移场
ANSYS
残采边坡
数值模拟
Veining up mining
Displacement field
ANSYS
Residual slope
Numerical simulation
