ABSTRACT

The Tokyo Port Seaside Road has been designed so that the Tokyo Coastal Highway Bridge will cross over Channel No. 3 of the port. The subject of this study is a steel-pipe-sheet pile foundation that features largediameter steel pipe piles serving as the pier foundation between the principal meridians of the Tokyo Coastal Highway Bridge. As its bearing capacity has not been fully proved, load tests (including a static axial compressive load test, a rapid load test, and a dynamic load test) were conducted to obtain information about the bearing mechanism of the foundation piles at the site where bridge construction has been planned, and the test results were used for designing the bridge. This report discusses the characteristics of vertical bearing capacity obtained from in-situ tests on actual size large diameter open-ended steel pipe piles which were constructed in the same way as in the actual construction.