Abstract
As the method to estimate the bearing capacity of the pile during driving, dynamic pile monitoring methods are used. Shaft and point resistance of the pile are estimated by analyzing the wave forms of force and velocity measured near the pile head. However, if the driving force applied on the pile head was not enough to mobilize the full of the soil resistance against the pile penetration, measured soil resistance does not reach its ultimate value. In this case, it can be said that the estimate pile capacity from the dynamic testing was not equal to the results of the static load testing. In this paper, the limitation of the dynamic load test method were examinted from the theoretical and practical view points.
