A new approach to plane failure of rock slope stability based on water flow velocity in discontinuities for the Latian dam reservoir landslide
A new approach to plane failure of rock slope stability based on water flow velocity in discontinuities for the Latian dam reservoir landslide
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DOI：
10.1007/s11629-011-2088-5
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发表时间：
2011-03
影响因子：
2.5
通讯作者：
M. Ahmadi;M. Eslami
中科院分区：
文献类型：
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作者：
M. Ahmadi;M. Eslami
边坡的稳定性一直是岩石工程界十分关注的问题。预先存在的不连续性的几何形状和方向对斜坡的行为显示出较大的影响，斜坡通常用于描述直线的陡度、倾斜度、坡度或坡度的测量。节理岩质边坡的结构控制破坏模式之一是平面破坏。岩质边坡稳定性分析的方法很多，包括极限平衡法、应力分析法和赤平极射投影法。在各种条件下，对平面破坏的边坡的极限平衡方法已提出了一些研究人员。然而，这些方法不涉及水的速度，由于滑动面上的水压力的评估，尚未得到验证的案例研究结果。本文应用改进后的方程，探讨了平面破坏时结构面上水压力的影响。研究了水流速度对滑动面安全系数的影响。提出了考虑水流速度（流体动力学）的新方程。为了检验所建议的公式的有效性，安全系数的案例研究已经确定。结果表明，水流速度对安全系数的大小有显著影响。此外，与当前方程相比，建议的方程具有更高的有效性。
The stability of slopes is always of great concern in the field of rock engineering. The geometry and orientation of pre-existing discontinuities show a larger impact on the behavior of slopes that is often used to describe the measurement of the steepness, incline, gradient, or grade of a straight line. One of the structurally controlled modes of failure in jointed rock slopes is plane failure. There are numerous analytical methods for the rock slope stability including limit equilibrium, stress analysis and stereographic methods. The limiting equilibrium methods for slopes under various conditions against plane failure have been previously proposed by several investigators. However, these methods do not involve water pressure on sliding surfaces assessments due to water velocity and have not yet been validated by case study results. This paper has tried to explore the effects of forces due to water pressure on discontinuity surfaces in plane failure through applying the improved equations. It has studied the effect of water flow velocity on sliding surfaces in safety factor, as well. New equations for considering water velocity (fluid dynamics) are presented. To check the validity of the suggested equations, safety factor for a case study has been determined. Results show that velocity of water flow had significant effect on the amount of safety factor. Also, the suggested equations have higher validity rate compared to the current equations.