Non-linear analysis of quay wall combi-pile infill sheets

This paper describes an analysis of infill sheets of a combi-pile quay wall. Non-linear finite-element analysis of combi-pile infill sheets was required as the residual thickness of the selected infill sheet profile was thinner than the proscriptive requirements of the Eurocode base case and the geometric restrictions required wider infill sheets than permitted. The analysis enabled an assured design to be adopted. The variation of corrosion allowance down the pile was assessed in conjunction with the varying tidal lag behind the wall to determine the critical locations. The analysis required geometric and material non-linearities. The results of the analysis were compared with previous physical model testing. A simplified elastic analysis was validated for thin infill sheets under low water pressures.