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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| Authors: | Morteza Ahmadi Majid Eslami |
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| Institution: | (1) Jeoloji Et?tleri Dairesi, Maden Tetkik ve Arama Genel M?d?rl?ğ?, Eskişehir Yolu, 06520 Balgat, Ankara, Turkey;(2) Fizibilite Et?tleri Dairesi, Maden Tetkik ve Arama Genel M?d?rl?ğ?, Eskişehir Yolu, 06520 Balgat, Ankara, Turkey |
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| Abstract: | 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. |
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| Keywords: | Plane Failure Limit Equilibrium Safety Factor Water Velocity |
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