비등방 항복함수를 적용한 강화지반의 탄소성해석(Ⅲ)

초록

Further enhancement of the proposed model by Lee, et al. (2000a, 2001) has been made in this study by relaxing the assumptions used in the previous study on the anisotropic yield function. For this, material properties of the reinforced ground both by equilibrium as well as kinematic condision along the interface and by the mean field theory by Eshelby (1957) and Zhao (1990) are compared with each other and, as a result, the advantage/disadvantage of the models are summarized. In case of elasto-plas-tic analysis model, the Voigt assumption (Hill. 1963) is also introduced to compare the feasibility of the previous model on anisotropic behavior of the reinforced ground. A new anisotropic yield function model is shown to be more reliable than the previous one and the predicted result is more agreeable with the experimental data available.

키워드