ABSTRACT

At the end of 1992, the Goodwyn A (GWA) platform was installed on the North West Shelf of Australia. During installation of the drilled and grouted foundation piles for this platform it was discovered that 15 of the 20 driven ‘primary’ piles were severely crushed at depths of 80 metres or more below the seabed (Fig. 1; Barbour and Erbrich, 1994).