An earlier TRRL Report, Smith (1986) (See IRRD 288880), describes a simple procedure by which it is possible to determine the reliability index of each of the possible failure modes of an earth retaining structure. This present report compares the results obtained with those found by other workers for the same failure modes. It also suggests how the method could be adapted for use with other geotechnical structures, such as earth slopes or embankments.

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