Slope stability analysis of riverbanks
Practical considerations for the use of subsurface exploratory data and material strength data in slope stability calculations for estimating the factor of safety along potential slip surfaces in natural slopes are described and illustrated with a sample problem. An alternative form of the slope stability equations for the method of slices, using the limit equilibrium method and satisfying complete statics on each slice, is presented for plane problems. The shortcomings inherent in commonly available computer programs for the analysis of slope stability problems are discussed. Means to overcome some of the limitations are indicated and illustrated with a sample problem. It is suggested that the general purpose computer programs for slope stability analysis should use the complete form of the slope stability equations. The alternative form of the equations and the discussion of their solution are valid for slope stability analysis of natural slopes and embankment dams. Keywords: stability analysis, slope stability, riverbanks, lake banks, natural slopes, soil mechanics, embankments.