不撹乱八戸ロームの不飽和力学挙動

概要

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Unsaturated triaxial tests were performed to study strength property of undisturbed Hachinohe Loam, volcanic sandy soil under undrained condition. In this study confining pressures were set 0,50, 90 kN/m^2, and initial matric suctions were set 0, 50, 90kPa. As sucton increase, shear stress, at faifure, increased linearly under suction 90 kPa. And the shear strengths at failure which were calculated by the expression proposed by Fredlund, were agreed well with experimental result. We could confirm the history of water retention curve based on soil structure and initial water content under triaxial shear tests.
八戸工業高等専門学校の論文