DETERMINATION OF COEFFICIENT OF EARTH PRESSURE AT REST FOR COHESIONLESS SOIL BY USING STRESS
用应力矢量本构模型确定无粘性土的静止土压力系数

Three formulae are derived to determine the coefficient of earth pressure at rest for cohesionless soil by using the stress vector based constitutive model. In the constitutive model, the action effect of stress vector is decomposed into the action effect of mean effective stress and that of stress ratio vector(ratio of deviatoric stress vector to mean effective stress). The validity of these formulae are investigated.