The influence of pile diameter on the relationship between the unit shaft friction of bored piles in sand and the CPT end resistance
Le Doan
In the proceedings of: GeoVancouver 2016: 69th Canadian Geotechnical ConferenceSession: FOUNDATION DESIGN - VI Soil-Structure Interaction
ABSTRACT: This paper examines mechanisms controlling the axial capacity of bored piles in sand and uses these to examine the effect of pile diameter on unit resistance and to assist development of a general direct CPT formulation. A new database of static load tests on continuous flight augered piles constructed in the field is combined with load test data from buried piles in the centrifuge and pressure chamber to establish a database of bored/buried piles with diameters ranging by more than three orders of magnitude. It is shown that compensating factors contribute to surprisingly similar ratios of CPT end resistance to average pile shaft friction for this range of diameters.
RÉSUMÉ: Cet article examine les mécanismes contrôlant la capacité axiale des pieux forés pour un sol sableux et utilise ces résultats pour comprendre les effets du diamètre du pieux par rapport à la résistance unitaire et pour ainsi aider au tration au cône. Une nouvelle base de données de charges statique sur pieux à la tarière creuse installés sur le terrain est associée à une seconde base de données ou les pieux sont enterrés en centrifuge et en chambre de compression pour établir une comparaison entre pieux forés et pieux battus dont le diamètre varit de plus de trois ordres de grandeur. Il est montré que les facteurs de compensation ont des ratios resistance finale des essais de pénétration au cône sur la friction moyenne de la vis de forage similaires nsemble des diamètres testés.
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Le Doan (2016) The influence of pile diameter on the relationship between the unit shaft friction of bored piles in sand and the CPT end resistance in GEO2016. Ottawa, Ontario: Canadian Geotechnical Society.
@article{3816_0721214913,
author = Le Doan,
title = The influence of pile diameter on the relationship between the unit shaft friction of bored piles in sand and the CPT end resistance,
year = 2016
}
title = The influence of pile diameter on the relationship between the unit shaft friction of bored piles in sand and the CPT end resistance,
year = 2016
}