New Simple Approach to Prediction of Axial Settlement of Single Piles under Design Load
Publication: Journal of Bridge Engineering
Volume 21, Issue 10
Abstract
Piles have been used to transfer superstructure (bridges, buildings, etc.) loads to deeper competent bearing strata to minimize settlements. Accurate predictions of design settlements of vertically loaded piles under working load are a critical issue in the design of pile foundations. Numerous comprehensive trials, built on a regression-based predictive formula that produces the axial settlement using elastic shortening as the input variable, were performed in this study, and a simple relationship was established between the elastic shortening of piles and the measured design settlements of 93 full-scale pile load tests installed in variable bearing materials. The calculated axial settlements of piles from the proposed method in this study were compared to the measured axial settlements of the piles. Accuracy and validity of the proposed method were verified through conventional statistical analysis in terms of mean of bias (λm) and coefficient of variation (μ). The proposed method yielded values of λm = 1.06 and μ = 0.15.
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Received: Oct 23, 2015
Accepted: Mar 22, 2016
Published online: Apr 22, 2016
Discussion open until: Sep 22, 2016
Published in print: Oct 1, 2016
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