STABILITY ANALYSIS AND FIELD BEHAVIOUR OF EARTH FILLS ON AN ALLUVIAL MARINE CLAY

概要

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Five erth fills for preloading were constructed on an alluvial marine clay under factor of safety of about 1.0. One erth fill failed and two must have been on the position of failure. First, undrained strength characteristics of the clay at the proposed site are described and discussed as well as the procedure for determining the undrained strength for practical use. Settlement characteristics observed in the field for each earth fill are then reported. Stability analysis for actually constructed earth fills are shown, in which anisotropy in undrained strength and effect of strain rate on undrained strength were considered. The results showed excellent agreement with the field behaviour of each fill and strongly demonstrated that the undrained strength of the clay at the proposed site should be evaluated from consolidated undrained strength tests in which the specimens from undisturbed samples are reconsolidated at the same stresses they carried in the field.
社団法人地盤工学会の論文
1980-12-15