Client:
GeoSolutions Group | SMEC Australia Pty Ltd
Location:
Port Kembla, Port Botany and Sydney Metro area NSW Australia.

CDC's Jack Up platform has been utilised extensively to complete cone penetration testing at Port Kembla, Port Botany and Sydney Metro area NSW, in various seabed substrates.
The drill operates through a 1200mm diameter moon hole in the deck of the jack up unit in order to get access to the sea floor.
The jack up unit is positioned in place by a CDC-owned pusher workboat that utilizes a GPS positioning system. Once in place, the independent jack up spud legs, fitted to the unit, are deployed to create a fully stable work platform that is not affected by the tide.
At Port Kembla 68 holes were completed in 43 days. The rig was placed on residual soil and fill where the fill was typically a mix of very soft to firm clay and silt material with high strength slag boulders mixed throughout. The residual soils ranged from very stiff to hard. Where the soil was shallow, the rig was at times deployed over residual soil and rock. The rock strength ranged from Max = 120MPa, Min = 1MPa, Av. = 63MPa.
The platform can be used with either 3 or 4 legs and can be broken down and shipped in containers. The legs are 15m and 25m long.

Client Reference:
GeoSolutions Group | SMEC Australia Pty Ltd
Mr David Malorey
Principal Engineer - Geotechnical and Tunneling
Australia Manager, GeoSolutions
Level 6, 76 Berry Street, North Sydney, NSW 2060, Australia
Phone +61 2 9925 5558

david.malorey@smec.com