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6Šª
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1982”N
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625-632•Å
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PROCEEDINGS OF JAPAN EARTHQUAKE ENGINEERING SYMPOSIUM
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Fusao AKA, Tokuo ABE
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TWO-DIMENSIONAL LIQUEFACTION ANALYSIS OF LAYERED SAND DEPOSITS
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This paper is concerned with two-dimensional dynamic analysis of saturated sand deposits considering a liquefaction phenomenon. An elastoplastic constitutive equation of sand and the Biot's theory of two-phase mixture are used. Two simplified methods of liquefaction analysis are proposed in order to indroduce the effective stress concept in soil mechanics. As a numerical application, two-dimensional behavior of saturated sand deposits are analyzed under the plane strain condition, using a finite element method and finite difference method for space and time discretization of govering equations. The generation and dissipation of excess pore water pressure due to seepage flow are included in the analysis.
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