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The '''Sarma method''' is a method used primarily to assess the stability of soil slopes under [[earthquake|seismic]] conditions. Using appropriate assumptions the method can also be employed for static [[slope stability]] analysis. It was proposed by [[Sarada K. Sarma]] in the early 1970s as an improvement over the other conventional methods of analysis which had adopted numerous simplifying assumptions.
==History==
[[Sarada K. Sarma|Sarma]] worked in the area of seismic analysis of earth dams under Professor [[Nicolas Ambraseys|Ambraseys]] at [[Imperial College]] for his doctoral studies in the mid 1960s <ref> Sarma S. K. (1968) ''Response characteristics and stability of earth dams during strong earthquakes''. PhD Thesis, Imperial College of Science & Technology, University of London </ref>. The methods for seismic analysis of dams available at that time were based on the [[Slope stability analysis#Limit equilibrium analysis|Limit Equilibrium]] approach and were restricted to planar or circular failures surfaces adopting several assumptions regarding force and moment equilibrium (usually satisfying one of the two) and about the magnitude of the forces (such as interslice forces being equal to zero).
Sarma looked into the various available methods of analysis and developed a new method for analysis in seismic conditions and calculating the permanent displacements due to strong shaking. His method was published in the 1970s (the very first publication was in 1973 <ref> Sarma S. K. (1973), ''Stability analysis of embankments and slopes''. Geotechnique, 23, 423 - 433 , ISSN: 0016-8505 </ref> and later improvements came in 1975 <ref> Sarma S. K. (1975), ''Seismic stability of earth dams and embankments''. Geotechnique, 25, 743 - 761 , ISSN: 0016-8505 </ref> and 1979 <ref> Sarma S. K. (1979), ''Stability analysis of embankments and slopes''. Journal of Geotechnical Engineering, ASCE, 1979, 105, 1511 - 1524 , ISSN: 0093-6405 </ref>).
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