ENSC 2001 Lecture Notes - Lecture 5: Earthflow, Slope Stability, Debris Flow
21 Feb 2018
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1903 frank landslide in canada best known landslide and a classic example of rock avalanche. Convex slope at the top, you get slow movement of material. Free face (cliff) most likely to form in a semi erred region, weathering and erosion. Concave slope water transported material to the base. Falls: rock falling from a cliff face and accumulates at the base. Slides: consolidated material can slide down slope movement, material falling down on a failure plain. Particles are moving in a semi-independent way, where the particles in the material are all moving independently. Examples of landslides: guatemala landslide, high rainfall in portugal. If sf > 1, then safe or stable slope. If sf < 1, then unsafe or unstable slope. Driving and resisting forces determined by the interrelationships of the following variables: Type of earth materials consolidated or unconsolidated materials. Slope angle and topography as the slope angel increases, the safety factor will become less than.
