ABSTRACT
Soil-cement mixing walls are often used for temporary structures as earth retaining walls when the ground is excavated. However, when soil-cement mixing walls are used as permanent piles, they are expected to support foundation structures. A centrifuge shaking table experiment was conducted on models of pile foundation structures to examine the effect of the presence of soil-cement mixing walls installed at the external peripherals on the responses of piles and structures, to understand the characteristics of foundation structures that use soil-cement mixing walls as permanent piles during earthquakes. The test results were reproduced via analysis to study a method of evaluating the horizontal resistance of a pile foundation structure using a soil cement column wall as its primary piles. This report describes the findings from the centrifuge shaking table experiment and analytical study.
