Publications / 1997 Proceedings of the 14th ISARC, Pittsburgh, USA

Automated, Real-Time Estimation of Pile Bearing Capacity via Seismic Measurements

Chung-Ham Yang, H. Randolph Thomas
Pages 351-358 (1997 Proceedings of the 14th ISARC, Pittsburgh, USA, ISSN 2413-5844)
Abstract:

This research is aimed at developing a seismic measurement based method for estimating pile bearing capacity. By modeling the rigid body motion of the pile-soil system. the pile bearing capacity is analytically derived as a function of mass. natural frequency. damping ratio. and soil quake. Tltis paper presents the procedure of extracting the natural frequency and the damping ratio from ground motion trace (also known as seismic waveform). The model was examined using field data. collected from a bridge foundation project. The estimated bearing capacities of the two test piles are close to the estimations by means of the well-known Case method. The results demonstrate the applicability of the model in estimating pile bearing capacity for the case project.

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