Numerical study on mechanism of dynamic earth pressure on adjacent structures

抄録

Recently, opportunities to construct earth retaining structures nearby other structures or other earth retaining structures have increased due to a variety of construction projects. In these cases, it is considered that the earth pressure on the earth retaining structures greatly changes because of the complicated interaction between the soil and the structures. With regard to the adjacent earth retaining structures, some studies on the set spacing between buildings and the deformation mode of these structures under a static condition have been conducted. However, the mechanism of the dynamic earth pressure on the adjacent earth retaining structures has never been analyzed. In this research, shaking table tests and finite element analyses are carried out to clarify the influence of the set spacing and the deformation mode of adjacent earth retaining structures upon the mechanism of the dynamic earth pressure. The adjacent earth retaining structures in this study are modeled as two walls. As a result, the influence of the set spacing and the deformation mode of adjacent earth retaining structures on the mechanism of the dynamic earth pressure is clarified.