井筒基礎の震動特性に関する実験的研究

Abstract

The purpose of this experimental study is to verify the theoretical results on the dynamiccharacteristics of the enclosed soil inside of well foundations.Vibration test are performed using three different model caissons embeded on/or in a sand layerwhich is mounted on a shaking table and it is comfirmed that the enclosed soil behaves such as themass of the caisson is increased by the amount of the enclosed soil mass and the contribution ofenclosed soil to the rigidity of the system is negrigible compared with that of surrounding soil.Numerical simulation on the dynamic behavior of soil and foundation system are also carriedout to compare with the theoretical and experimental results.