遠心載荷模型実験に関する基礎実験

Abstract

In this paper, several features and efficiencies of the geotechnical centrifuge apparatus set up at AIT in March, 1993 are first outlined. In order to confirm effective ways of utilizing the centrifuge and to acquire basic experimental techniques, some fundamental studies were carried out on the calibration of pick-ups and the measurement of earth and pore-water pressures in water and sand deposits. Disscussions were then made on the effects of side friction in the container and stress concentration and arching of soils around pick-ups on the precise measurement of earth pressures. Test results reveal that in the calibration of earth pressure pick-up, appropriate correction is needed for enertia force and soil properties, and that the effects of side friction and arching on earth pressure measurements are strongly dependent on the particle size.