The design of displacement piles in siliceous sands using the CPT

This paper provides recommendations for the assessment of the shaft and base capacity of driven and jacked (or ‘pressed-in’) displacement piles in siliceous sand using CPT data. The recommendations related to open and closedended driven piles are those proposed by the ‘UWA-05’ method and the rationale behind adoption of the selected formulations for this method is provided. The paper also provides guidance on the assessment of the base stiffness of piles in sand.