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Three-dimensional slope

机译：三维斜坡

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摘要

Slope failures that occurred in 2008 and 2009 at the Pikeview Quarry in El Paso County in Colorado in the United States were investigated using three-dimensional discrete element modeling methods. Large-scale block sliding failures occurred along weak bedding planes that dip steeply into an excavation located at the toe of the slope. Several mining sequences at the toe of the slope were simulated to evaluate the effects of various degrees of extraction and backfill on slope stability. Slope stability back-analysis was conducted using prefailure and post-failure conditions to determine the joint shear strength properties. Laboratory testing was also conducted to determine intact rock properties. Three-dimensional discrete element analysis was uniquely applicable to this evaluation because it allowed representation of shear stress of the basal sliding surface and afforded evaluation of several scenarios of extraction and backfill at the toe of the slope.
机译：2008年和2009年在美国科罗拉多州埃尔帕索县的PikeView采石场发生的斜坡失败采用三维离散元素建模方法调查。 大规模的块滑动故障沿弱床上用品，陡峭地倾向于位于斜坡脚趾的挖掘中。 模拟斜坡脚趾的几种矿序列以评估各种萃取和回填对斜坡稳定性的影响。 使用预先制造和失败后的条件进行边坡稳定性反分析以确定关节剪切强度性能。 还进行了实验室测试以确定完整的岩石性质。 三维离散元件分析是独特的应用于该评估，因为它允许表示基底滑动表面的剪切应力，并在斜面的脚趾上提供了几种提取和回填的场景。

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