Masaki MAGOORI

Effect of the ground configuration and uplift loading direction in the pull-up capacity of T-inverse type belled pile

Yasuyuki MIYAKI

The need of the refinement of the design methodology for belled pile has come to be acknowledged in association with the increase in natural disasters ad the liberalization of electric power industry in recent years. Despite the recent development of the computational method for geotechnical problems, it is problematic to find the effective numerical tools readily applicable to the uplift problems of belled pile . We inquire to the bearing capacity of belled pile in various geographical feature conditions and load conditions using three-dimension nonlinear elasto-plastic finite element method. Numerical result reveal that the ground configuration, such as slopes, ridge and peak, and the direct of the uplift loading have significant influence on the pull-up capacity and failure behavior in the ground.