ABSTRACT
Application of the steel tubular piles as the retaining walls are increasing. Especially, Gyropress method are often used because this method can install the piles penetrating stiff ground and underground obstacles. Design methods of the self-standing retaining walls in Japan vary depending on the objects of structures and assumed actions, and there are mainly three analysis methods. The self-standing retaining walls using steel tubular piles pressed into stiff ground are also designed conformed to each design method, and it is known that the calculated embedded lengths differ depending on the analysis methods. However, there is few case studies about the evaluation results depending on the design method and the ground condition. In this paper, the overview of each analysis method is introduced, and the optimum method is discussed by the comparing the calculated embedded length depending on different analysis methods and the design condition.
