| Two bridges were constructed for extension work of Central Hokkaido Connection Road in 2005 at [*]two different sites. Pile group foundations were employed for the foundations of abutments of [*]the two bridges. In order to assess the performance of the constructed piles in the sites and [*]to obtain design parameters for design in future、 static alternating cyclic horizontal load [*]test was carried out on one of the open-ended steel pipe piles constructed at each site. [*]The ground at one site was characterised as a thick deposit of volcanic soils、 and the ground [*]at the other site was characterised as a very soft peat layer near the surface. In this paper [*]the results of static alternating cyclic horizontal load tests on the piles at the two sites [*]are presented and discussed in detail. |
