Open AccessCone penetration test-based load-transfer formulations for driven piles in sand
Author(s) -
Barry Lehane,
Li Lin,
Eduardo Bittar
Publication year - 2020
Publication title -
géotechnique letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.845
H-Index - 28
ISSN - 2045-2543
DOI - 10.1680/jgele.20.00096
Subject(s) - pile , cone penetration test , geotechnical engineering , load testing , structural engineering , penetration test , displacement (psychology) , penetration (warfare) , engineering , transfer (computing) , dynamic load testing , computer science , subgrade , psychology , operations research , psychotherapist , parallel computing
This paper presents the development of load-transfer curves that can be used to estimate the displacement under axial load of driven piles in sand. The maximum skin friction and end-bearing stress are obtained from new ISO 19901-4 cone penetration test (CPT)-based formulations, which were calibrated using a high-quality database of static pile load tests compiled for this purpose. The load–displacement responses measured in the 71 static load tests in this database are used to derive CPT-based non-linear load-transfer curves. It is shown that good estimations of pile displacements can be obtained using CPT data and the normalised formats of shaft and base load-transfer functions provided in the American Petroleum Institute and ISO 19901-4 recommendations.