STUDY ON METHODS FOR EVALUATION OF BEARING CAPACITY OF STEEL PIPE PILES

The present paper discusses two main subjects. The first one is concerned with a method for the evaluation of ultimate bearing capacity in which the updated data obtained during the in-situ loading tests are used. The new evaluation method of applying the residual settlements with the total settlement in each loading step is proposed. The other is to show the improved equations of ultimate bearing capacity which are determined based on the statistically analyzed data on many proto-type loading tests done in the fields. The results are compared with the values given by the methods generally used in Japan and the engineering usefulness of the new methods are emphasized.