A Modified Structured Cam Clay Model

บทคัดย่อ

In this paper, characteristics of the undrained shear behavior of induced cemented clays are summarized for the purpose of developing an appropriate constitutive model for solving practical geotechnical problems. The Modified Structured Cam Clay (MSCC) model is introduced for this purpose. It is formulated based on the modified effective stress concept and the Structured Cam Clay (SCC) model proposed by Liu and Carter [1 and 2]. The model parameters can be divided into those describing intrinsic soil properties and those for cementation, which can be simply determined from conventional triaxial tests on uncemented and cemented samples, respectively. The performance of the model is verified by comparisons of model simulations and experimental data for tests at various stress levels on clay samples with different degrees of cementation.