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A Prediction of Undrained Shear Behavior of the Remolded Weathered Mudstone Soil Using the Constitutive Model  

Lee Sang-Woong (Yeon Engrg. Co.)
Choo In-Sig (Dooho Engrg. Co.)
Kim Young-Su (Civil Engrg., Kyungpook National Univ.)
Kim Ki-Young (Kowaco Dam Safety Research Center)
Publication Information
Journal of the Korean Geotechnical Society / v.21, no.4, 2005 , pp. 31-40 More about this Journal
Abstract
This study proposed a new yield function considering the spacing ratio of the critical state to predict the undrained shear behavior of anisotropic field ground. We have suggested a nonassociated constitutive model that used a newly modified plastic potential function in order to apply the yield function of the modified Cam-Clay model to the anisotropic consolidation. In this paper, we predicted undrained shear behavior of the remolded weathered mudstone soils in Phohang isotorpically and anisotropically consolidated using the suggested model. To evaluate the reliability of proposed model, we predictied undrained shear behavior of Bankok Clay isotropically, nomally consolidated and Drammen Clay Ko consolidated. The predicted results are consistent with the observed behavior.
Keywords
CKoUC; Constitutive model; Non associated flow rule; Plastic potential; The spacing ratio of critical state;
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