Job Reports > Sheet Pile > OneSteel Newcastle

Newcastle
New South Wales
Onesteel Wire Ropeworks, foundation excavation

OneSteel’s Wire Ropeworks has expanded its Mayfield site to accommodate a new wire rope closing machine. Milleen Constructions were responsible for the associated building and civil works to house the new machine that was commissioned late 2004.

The new wire rope closer is capable of manufacturing wire rope up to 8" (203 mm) diameter in both six and eight strand constructions and in single parcels up to 150 tonnes in weight.

The machine foundations were excavated to a maximum depth of 5 metres. To enable these excavations to be dug, LX16 sheet piles were driven using Steelcom’s 15HF3 vibrating hammer along each side of the two large pits. In total, approximately 170 sheet piles were driven to a depth of up to 12 metres.

The sheet piles were inter-locked on three sides of each pit, however due to the close proximity of the foundation to the existing building, one side required free standing sheet piles. These piles were braced across the foundation to the piles on the opposing side of the pit.