ABSTRACT
A jacket-type steel-pile foundation is proposed as a low-cost construction method for marine bridge foundation (Sekimoto et al., 2000). It can reduce the load acting on the piles drastically because the foundation and the superstructure are connected together by the jacket that is much lighter than a conventional topheavy foundation. If inclined piles are properly used as a pile foundation, it is possible to increase efficiently the lateral resistance and the rigidity of the foundation. Moreover, the soil improvement is not needed even if the upper strata of the ground are very weak.
