Abstract
Existing approaches for the estimation of shaft and base resistances of drilled, cast-in-place piles have been compared on the basis of data collected from local geotechnical consultants, from load tests performed as part of foundation projects in Israel over the last decades. Three typical Israeli foundation soils were considered—clay, sand, and kurkar (partially and variably cemented sand). Data from 18 load tests at 13 sites were used for the study. Existing correlations were first used to estimate relevant soil properties from results of in-situ tests [usually standard penetration tests (SPT) or vane shear tests] performed during the project site investigations. These properties were then inserted in existing resistance estimation expressions. The resulting estimated resistances were compared to resistances indicated in the loading tests. A statistical analysis was used to choose the most reliable correlations and resistance estimation expressions for piles embedded in the various soils.
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Data Availability Statement
Some or all data, models, or code used during the study were provided by third parties. Direct request for these materials may be made to the providers as indicated in the Acknowledgments.
Acknowledgments
This study was funded by the Israel Ministry of Construction. We are grateful to the following geotechnical consulting companies for providing pile load test data which was used for the study: G.Y.A. Soil and Foundation Engineering; Blank-Lerer Engineers; Mike Doktofsky Geotechnical Engineering; David David Foundation Engineering; E. Erez Consulting Engineers; Dabush Civil Engineering; Samuel Gefen Soil Engineering; Amir Geotechnical Engineering; and M. Yuger Soil and Foundation Consultants.
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© 2023 American Society of Civil Engineers.
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Received: Apr 25, 2022
Accepted: Oct 31, 2022
Published online: Jan 17, 2023
Published in print: Apr 1, 2023
Discussion open until: Jun 17, 2023
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