Increased unit weight of soil by wetting.Morgenstern and Price (1965) and Janbu (1973) The Zero angle of Shearing Resistance Method The quantitative determination of the stability of slopes is necessary for a number of engineering projects, for instance, the design of earth dams and embankments, analysis of the stability of natural slopes, analysis of the stability of excavated slopes, and analysis of the deep-seated failure of foundations and retaining walls. These methods are developed on the assumption that the plane of failure is circular arc, apart from the Culmann method that assumes a plane surface of failure through the toe of the slope. The common methods for the analysis of a slope's stability are Culmann Method, Ordinary Method of Slices and Bishop Method of Slices. The slope stability analysis is crucial in engineering practice to ensure the stability of structures and prevent loss of human life and money. A slope is an inclined boundary surface between air and the body of an earthwork such as highways, cut or fill, railway cut or fill, earth dams, levees and river training work.
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