起振機試験による基礎地盤動特性の評価について

Abstract

The purpose of this paper is experimentally to estimate the equivalent spring and dampingconstants of soil-foundation and the dynamical ground compliance, and to compare the experi-mental result with the theoretical one. To estimate the dynamic soil-foundation properties, vibration tests on three kinds of foundations excited by an eccentric-mass vibrator have beenconducted.If the stress of the soil-ground beneath the foundation is small, the experimental result coincideswith the theoretical one, but if its stress is large, the both results are apt to be different from eachother, because of the nonlinearity of the soil medium.