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문창열,박병수,조영묵 三陟大學校 1999 論文集 Vol.32 No.2
This paper is results of numerical analysis to investigate stress-strain behavior of sandy soils. Tree different constitutive relationships of Modified cam-Clay Model, Hyperbolic Model and Lade's Double-Work-Hardening Model were applied to predict stress-strain behavior of them. For each model, constitutive relations as well as parameters governing stress-strain behavior were programmed numerically. Weathered granite soil, tests were carried out with rich in Korea, and Ju Mun Jin Standard Sand were used as specimen of sandy soil. Stress-strain behaviors of these soils were obtained by performing isotropic compression and drained triaxial compression tests. For Weathered granite soil, tests were carried out with three different water contents determined on the basis of compaction test results. Four different relative densities were used with Ju Mun Jin Standard Sand. Numerically Predicted results with three different models were compared with tested results. Therefore applicability and problems of each model were discussed. Numerical analysis about sensitivity of parameters was also performed to investigate how these parameters influenced stress-strain behavior of sandy soils.