Abstract
A simple dynamic response analysis method by employing an equivalent linearization model for liquefaction was previously developed by the present authors (No. 340, Proc. of JSCE, 1983-12). However, the study using this method remained within discussion only for undrained saturated sandy soil which was modelded as a single degree of freedom system. This paper has extended the method into one which can be applied to multi-layered soil deposits, where for the verification of effectiveness of this extended method, analyzed numerically are a one-layered deposit which is modelded as a four degree of freedom system and the site profile of KAWAGISHI-CHO of NIIGATA city which is modelded as an eleven degree of freedom system. From comparison of analytical results of pore-water pressures by this method and by Finn's effective stress method, it can be concluded that this method is also effective as a simple tool of response analysis for liquefaction of multi-layered sandy deposits.
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