Three different approaches for assessment of seismic performance of pile foundations (and soil-structure systems in general) are discussed in this paper. These approaches use different models, analysis procedures and are of vastly different complexity. All three methods are consistent with the performance-based design philosophy according…
The Stage 3 expansion of the Tararua wind farm involved construction of 31 new turbines. Cyclical rocking under wind loading requires a strong foundation material and particularly high stiffness. Greywacke rock was the preferred founding material. This paper concentrates on the practical aspects of construction…
Berth 3, an extension to Northport Ltd’s Marsden Point wharf facility, comprises a twin sheet pile wall to provide support to the new wharf deck and retain the adjacent reclamation. The wall type was selected to enable construction to proceed by walking a crane over…
Shell (NZ) Limited is constructing three large fuel tanks at their Naval Point compound, Lyttleton. The area is underlain by a very deep deposit of soft soil and the area has a history of problems with tank foundations. Stone columns were installed beneath each tank…