1995 Volume 1995 Issue 517 Pages 13-23
A rapid load test, named Statnamic, was carried out with an open-ended steel pipe pile driven in a diatomaceous mudstone. The pile behavior during the Statnamic test was fairly comparable with the pile performance in the conventional static loading test until the Statnamic load reached the static, ultimate bearing capacity. The maximum load in the Statnamic test was 20% larger than the static, ultimate bearing capacity. A workable method for construction of ‘static’ load-settlement diagram is proposed, in which the damping factor and the pile stiffness which are nonlinear with the pile displacement are calculated from the Statnamic data only. It is shown that the Statnamic load test along with the proposed method offers a useful alternative to the conventional static loading test.
