A Method for Predicting the Ultimate Axial Resistance of Helical Piles in Cohesive Soils

C Weech

In the proceedings of: GeoVancouver 2016: 69th Canadian Geotechnical Conference

Session: FOUNDATION DESIGN - IV Helical Piles

ABSTRACT: This paper discusses the effects of helical pile installation on the undrained shear strength that is available to the helix plates and the pile shaft during axial loading. A method of estimating the ultimate axial resistance of helical piles installed in cohesive soils is proposed, which accounts for these soil disturbance effects. Predictions of ultimate axial resistance are compared to resistances in uplift and compression determined from full-scale load tests on a variety of helical pile geometries installed in a variety of cohesive soils with different overconsolidation ratios and sensitivities.

RÉSUMÉ: les on de la résistance axiale ultime des épaississements pieux installés dans les sols cohérents est proposée, qui représente ces effets de déterminée à partir de tests de charge à grande échelle sur une variété de géométries de pieu hélicoïdal installé dans une variété de sols cohérents avec les sensibilités et les différents rapports de surconsolidation et soulèvement.

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Cite this article:
C Weech (2016) A Method for Predicting the Ultimate Axial Resistance of Helical Piles in Cohesive Soils in GEO2016. Ottawa, Ontario: Canadian Geotechnical Society.

@article{3908_0722114532,author = C Weech,title = A Method for Predicting the Ultimate Axial Resistance of Helical Piles in Cohesive Soils,year = 2016}