原位置における砂の動的変形特性の推定法 : 地盤の動的変形特性の評価法に関する研究(II)

抄録

In this paper, the authors proposed the prediction method on the in situ dynamic deformation properties of sands for the earthquake response analysis of the ground. This method is based on the hyperbolic stress-strain relationship, which is called "the Hardin-Drnevich model", and in addition takes the effects of sample disturbance into consideration. The results estimated by the proposed method were in good agreement with the test results by the cyclic triaxial tests, which were performed to investigate the effects of void ratios, confining pressures and sample disturbance on the dynamic deformation properties of sands. Finally, the application of this method to the in situ dynamic deformation properties was given and at the same time the strain-dependency curves of shear moduli and damping ratios predicted by the proposed method were compared with those by the correction methods of other investigators.