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首页> 外文期刊>Bulletin of engineering geology and the environment >Development of a probabilistic kinematic wedge sliding analysis procedure and application to a rock slope at a hydropower site in China
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Development of a probabilistic kinematic wedge sliding analysis procedure and application to a rock slope at a hydropower site in China

机译：概率运动楔形滑动分析程序的开发及在中国水电站岩质边坡中的应用

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摘要

In performing kinematic wedge stability analysis, in practice, it is usually assumed that the wedge is a "Standard Wedge" (the term is explained in the paper) sliding along the line of intersection of the two discontinuity planes. Intersection of two discontinuities with the lower and upper rock slope surfaces can result in forming Standard Wedges, Overlying Wedges and No Wedges. Vector procedures are developed in the paper to differentiate the aforementioned formation modes for the wedges. Vector procedures are then given to calculate the sliding modes, sliding directions, maximum safe slope angles and factor of safety for the Standard and Overlying wedges. Procedures are also given to incorporate the variability of discontinuity orientations and strength and to calculate the instability cumulative probabilities corresponding to different cut slope dip angles. All these procedures are incorporated in a computer code, named PKWSAC. The developed procedure and the computer program were then validated by applying them to three examples and comparing the results obtained through this procedure with the results obtained through Lucas' stereographic procedure [Lucas JM (1980) Int J Rock Mech Min Sci Geomech Abstr 17:57-61]. The validated procedure was then applied to a rock slope at a hydropower site in China to perform both deterministic and probabilistic kinematic wedge stability analyses. The paper also shows a comparison between the deterministic and probabilistic analyses results.
机译：实际上，在进行运动楔形稳定性分析时，通常假定楔形是沿两个不连续平面的相交线滑动的“标准楔形”（该术语在本文中进行了解释）。两个不连续点与下部和上部岩石坡度表面相交会导致形成标准楔，上楔和无楔。本文开发了矢量程序来区分上述楔形的形成方式。然后给出矢量程序来计算标准楔形和上覆楔形的滑动模式，滑动方向，最大安全倾斜角和安全系数。还给出了合并不连续性取向和强度的变化并计算与不同切坡倾角对应的不稳定性累积概率的程序。所有这些过程都包含在名为PKWSAC的计算机代码中。然后，通过将所开发的过程和计算机程序应用于三个示例，并将通过该过程获得的结果与通过卢卡斯的体视过程获得的结果进行比较，来验证所开发的过程和计算机程序的有效性[Lucas JM（1980）Int J Rock Mech Min Sci Geomech Abstr 17:57 -61]。然后将经过验证的程序应用于中国某水电站的岩石边坡，以进行确定性和概率性运动楔形稳定性分析。本文还显示了确定性和概率分析结果之间的比较。

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