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FACTORS AFFECTING SLOPE FAILURE

Introduction. FACTORS AFFECTING SLOPE FAILURE. Geological discontinuities bedding plane schistosity foliation joint cleavage fracture fissure crack fault plane. FACTORS AFFECTING SLOPE FAILURE. effect of discontinuity orientation on the types of slope failure.

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FACTORS AFFECTING SLOPE FAILURE

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  1. Introduction FACTORS AFFECTING SLOPE FAILURE

  2. Geological discontinuities • bedding plane • schistosity • foliation • joint • cleavage • fracture • fissure • crack • fault plane FACTORS AFFECTING SLOPE FAILURE

  3. effect of discontinuity orientation on the types of slope failure Geological discontinuities Effects of persistence on slope stability

  4. The effect of water on rock slope The water applies horizontal and vertical pressure along the discontinuities. It discontinuity reduces the effective normal stress acting on the plane. Water is also wash away the filling material between discontinuities. Effect of Water

  5. Effect of water on unconsolidated material

  6. Shear testing of discontinuities or between two plane Shear testing of discontinuities or between two plane Shear testing of discontinuities or between two plane Shear testing of discontinuities or between two plane Shear testing of discontinuities or between two plane Shear testing of discontinuities or between two plane Shear testing of discontinuities or between two plane Shear testing of discontinuities or between two plane Shear testing of discontinuities or between two plane Geotechnical Properties of Material

  7. Preparation of foundation, method of stripping, placement and rehandling of dump material. Mining Methods

  8. high in-situ stresses may be present within the rock mass. High horizontal stresses acting roughly perpendicular to a cut slope may cause blocks to move outward due to the stress relief provided by the cut State of stress

  9. Geometry slope: Effect of slope angle on slope stability

  10. Two aspects of erosion need to be considered from slope stability point of view. The first is a large scale erosion, such as a river erosion occurring at the base of a slope. The second is a relatively localized erosion caused by groundwater or surface runoff. Erosion

  11. Seismic waves passing through rock adds stress which could causes fracturing in the rock mass. As a result, friction is reduced in unconsolidated masses as they are tarred apart which may induce liquefaction. Landslide is one of the major hazards resulting due to earthquakes. Seismic effect

  12. Vegetation Mechanisms of root reinforcement of grass plants and tree

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