Abstract
This paper describes the behavior of sandy and clayey ground under lateral loading tests of full-scaled single piles under large deformation. Most of the real structures have rotation-fixed head, whereas there have been few tests of single piles in its consideration. Also, it is difficult to evaluate the ultimate state of a short-length pile, since the behavior is affected by the rotation of the pile bottom. In this study, lateral loading tests of some cast-in-place piles were conducted in sandy and clayey ground. In the tests, a new apparatus was used to deal with the rotation-fixed head. Finally, the differences of the behavior of the piles and ground under large deformation are considered, from the viewpoint of the difference of ground (sand or clay), pile length (short or long), and rotation condition of pile head (free or fixed), based upon the test results.
