中文摘要：

为宝日希勒露天矿实行内排压脚滑坡防治措施，须确定合理的追踪距离，运用二维刚体极限平衡和FLAC加数值模拟计算方法研究内排台阶与采矿台阶的跟踪距离对端帮的钳制作用的影响。分析端帮边坡应力、位移变化云图，可以看出随着跟踪距离三增大应力场、位移场发生变化的规律，即跟踪距离三越小，边坡位移越小，边坡变形范围越小，边坡越稳定。从而确定了合理的追踪距离，证明了内排压脚、煤台阶支挡对提高边坡稳定性的积极作用。因此随着采矿工程的发展，内排土场同步发展，利用内排压脚滑坡防治方法不失为一个即经济又合适的好方法。

英文摘要：

In order to carry out the internal dumping pressure foot landslide prevention measures in Baorixile open-pit mine, the reasonable track distance has to be determined. Using two-dimensional rigid body limiting equilibrium and FLAC3D numerical simulation computational method ,the internal dumping stair and the mining stair＇s track influence is researched on the handcuff function of end slope. The stresses and the displacement cloud chart of slope-side are analyzed. As can be seen that with the tracking distance L increasing stress field, displacement field changes in the law, that is, the smaller the tracking distance L, the smaller the slope displacement, the smaller the scope of slope deformation, more stable slope is. Thus the reasonable tracing distance is determined and is proved that internal dumping pressure foot and coal stair support played the positive role in enhancing side slope stability. So with the development of mining engineering and internal dumping, using the restraining prevention method is an economic and appropriate method.