A strength-ratio based approach to liquefaction analysis developed by the author is briefly presented. The proposed procedure for liquefaction analysis of sloping ground (i.e., ground subjected to a static shear stress) involves three primary steps: (1) liquefaction susceptibility; (2) triggering of liquefaction; and (3) post-triggering/flow failure stability. The liquefaction analysis procedure is illustrated using two flow failure case histories. The first case history, Fort Peck Dam failed during construction in 1938 as a result of static (i.e., gravity) forces alone. The second case history, Hachiro-Gata road embankment failed due to shaking during the 1983 Nihon-Kai-Chubu earthquake. The proposed liquefaction analysis procedure correctly predicts liquefaction in both of these cases.
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