Dynamic and static horizontal load tests on steel pipe piles and their analyses

A bridge was constructed at the Shinotsu site for the Central Hokkaido Connection Road in 2006. Pile group foundations were employed for abutments of the bridge. In order to assess the performance of the constructed piles, a static alternating cyclic horizontal load test and a dynamic horizontal load test were carried out on the constructed foundation piles. The test piles are located next to each other with pile spacing of 2 m. The specifications of the test piles are summarised in Table 1.