攀枝花朱矿南帮边坡稳定性的运动学分析

Stability Analysis of South Slope of Panzhihua Zhu Mine Based on Kinematics

露天矿山开采后,形成多台阶高陡岩质边坡,结构面揭露,大量发育的结构面对岩质边坡的稳定性起控制作用。通过立体投影与矢量代数理论建立的运动学分析方法,广泛应用于受结构面控制的岩质边坡稳定性研究。以攀枝花朱矿南帮边坡为例,应用DIPS软件,对该岩质边坡进行运动学分析,结果表明南帮边坡在优势节理面切割下,易和坡面组合形成楔形体滑动;岩体下部若存在流层面,易于和贯通的节理面组合形成较大规模平面滑动。

After the open pit mining,a multi-step high and steep rock slope is formed.Structural plane are exposed and control the stability of rock slope.Kinematics analysis,which are composed of stereo projection and vector algebra,is widely applied to the stability of rock slope controlled by structural plane.Taking south slope of Panzhihua Zhu Mine as an example in paper,slope is analyzed by kinematics through DIPS software,The results show that the south slope is easy to form wedge-shaped sliding when it is cutted by the dominant joint planes,and the slope is easy to form large-scale plane sliding when it is combined with the through joint plane if there is a flow plane.