Application of the Unified CPT method to assess the driving resistance of pipe piles in sand

Barry Lehane, David Igoe, Ken Gavin, Eduardo Bittar Marin

Research output: Chapter in Book/Conference paperConference paperpeer-review

Abstract

A new method of estimating the static capacity of driven piles in silica sand, referred to as the Unified method, is included in the forthcoming 2022 edition of ISO-19901-4 and replaces the four CPT methods recommended in ISO-19901-4 (2016). This paper investigates the application of this method to the prediction of driving resistance of pipe piles using seven high quality case histories involving piles with diameters in the range 340mm to 4.2m. It is shown that the Unified method, adapted to enable estimation of the static resistance to driving (SRD), can lead to considerably improved predictions of driving resistance compared to an existing popular method used for SRD determination. Further refinements to the proposed formulation, referred to as UniSand-SRD, will be possible on examination of additional high quality case histories.
Original languageEnglish
Title of host publicationProceedings from the 11th International Conference on Stress Wave Theory and Design and Testing Methods for Deep Foundations
DOIs
Publication statusPublished - 20 Sep 2022
Event11th International Conference on Stress Wave Theory and Design and Testing Methods for Deep Foundations - Rotterdam, Netherlands
Duration: 20 Sep 202223 Sep 2022

Conference

Conference11th International Conference on Stress Wave Theory and Design and Testing Methods for Deep Foundations
Abbreviated titleSW22
Country/TerritoryNetherlands
CityRotterdam
Period20/09/2223/09/22

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