蒙库铁矿露天采场岩石边坡破坏模式分析

根据蒙库铁矿露天采场矿山地质资料以及岩体结构特征, 采用赤平极射投影方法对该铁矿露天采场岩石边坡可能的边坡破坏模式进行了综合分析。结果表明, 蒙库铁矿露天采场岩石边坡主要破坏模式有圆弧形破坏、楔形破坏、倾倒破坏、崩塌和溃屈等, 其中楔形破坏、倾倒破坏、崩塌和溃屈均为台阶的局部破坏, 对于整个露天采场的高陡边坡而言, 圆弧形破坏应为其主要破坏模式。

Analysis of Rock Slope Failure Mode in Open-pit of an Iron Mine

According to the geological data and characteristics of rock mass structure in the open-pit of Mengku Iron Mine, the possible modes of rock slope failure in its open-pit were comprehensively analyzed with stereographic projection. Results show that the failure modes of rock slope in the open-pit of this iron mine include circular failure, wedge failure, toppling and collapse, as well as buckling failure, etc., among which the latter four failure modes usually cause some partial failure to the bench while the predominant failure mode for the high-steep open-pit slops should be circular failure.