露天矿边坡滚石运动轨迹的统计研究——以内蒙古某矿山为例

Statistical Study on the Motion Trajectory of Rockfalls on the Slope of an Open-pit Mine—Taking a Mine in Inner Mongolia as an Example

有效、准确地估算露天矿边坡滚石运动轨迹,对滚石防护及保障矿山安全生产具有重要意义。该文以内蒙古某露天矿采场边坡为例,采用RocFall软件对滚石运动轨迹开展模拟研究,获得了采场坡脚台阶坡面、顶部及整个采场边坡的滚石运动轨迹及位置分布的统计规律,并为防护滚石提出了建议。研究结果表明:坡脚台阶坡面、顶部滚石的最终位置距坡脚的最大距离不超过18 m;整个边坡坡面滚石的运动范围可划分为四个区间,滚石最终位置距坡脚的最大距离不超过9 m;现有安全平台可有效防护滚石。本研究为该矿山的滚石防护提供了理论依据,也可为同类工程提供参考借鉴。

Effective and accurate estimation of the trajectory of rockfalls on open-pit mine slopes is of great significance for rockfall protection and mine safety production.Taking the slope of an open-pit mine in Inner Mongolia as an example,RocFall software is used to conduct simulation research on the trajectory of rockfalls.The statistical rules of the trajectory and position distribution of rockfalls from the surface and top of foot step slope,as well as the entire slope of the mining site are obtained,and suggestions are proposed for protecting rockfalls.The investigation results indicate that the maximum distance from the final position of the rockfalls of the surface and top of the foot step slope to the foot of the mine slope is no more than 18 m.The motion range of the rockfalls of the entire slope can be divided into four intervals,and the maximum distance between the final position of the rockfalls and the foot of the mine slope is no more than 9 m.The existing safety platform can effectively protect the rockfalls.This study provides a theoretical basis for protection of rockfalls in the mine and also serves as a reference for similar projects.