Screw Piling Case Studies – Problem Solving in the Field

Construction Sites

Problem -Limited Access

Screw pile installation on a limited-access construction site
Screw pile installation on a limited-access construction site
1300 PILING

Both height and width access issues addressed with appropriate equipment and short pile segments

Residential and Commercial Projects

Compact screw piling rig working on a residential and commercial project
Compact screw piling rig working on a residential and commercial project
Compact screw piling rig working on a residential and commercial project

Both height and width access issues addressed with appropriate equipment  and short pilesegments

Federation Square Lift

Problems :   Limited Access – Contaminated Soils

Segmented screw piles installed for the Federation Square lift, Melbourne
Segmented screw piles installed for the Federation Square lift, Melbourne

Solution – Small machine , 6 metres of segmented screw piles to bedrock . Contaminated material $15K to remove .

Harbour Town Shopping Centre, Docklands

Escalator and Suspended Walkway Additions

Problem – Very limited access, Shopping Complex open all hours, Contaminated Fill, 30 metre long Piles

Screw piling for escalator and walkway additions at Harbourtown Shopping Centre
Screw piling for escalator and walkway additions at Harbourtown Shopping Centre
Screw piling for escalator and walkway additions at Harbourtown Shopping Centre

Solution – Small Excavator ,Segmented screw piles in 3 metre sections to bedrock.

Adelaide Living Beaches – Pumping Station

Problem- Shallow water table, collapsing sands , corrosion , lateral

Solution – Large diameter heavy gauge  screw piles , founding on dense sands at depth.

Heavy gauge screw piles at the Adelaide Living Beaches pumping station
Heavy gauge screw piles at the Adelaide Living Beaches pumping station
Heavy gauge screw piles at the Adelaide Living Beaches pumping station

Australia Post Sorting Centre, Essendon

Design Problems: up to 6 metres of contaminated fill , including building rubble – 800 piles  in total

Segmented screw piles installed to bedrock at Australia Post Sorting Centre, Essendon
Segmented screw piles installed to bedrock at Australia Post Sorting Centre, Essendon

Solution – Segmented screw piles installed to bedrock.

Heller St Townhouses

Problem – Contaminated Fill from 80 year old Tip Site , lateral loads imposed on structure

Raking screw piles in contaminated fill at Heller St townhouses
Raking screw piles in contaminated fill at Heller St townhouses
Raking screw piles in contaminated fill at Heller St townhouses

Solution – Large Capacity Segmented raking screw piles in 6 metre sections to bedrock tied to band beams.

Cranbourne Botanic Gardens

Problem – Significant Lateral Loads ( Wind ) , Shallow water table and collapsing soils

Raking screw piles resisting wind loads at Cranbourne Botanic Gardens
Raking screw piles resisting wind loads at Cranbourne Botanic Gardens
Raking screw piles resisting wind loads at Cranbourne Botanic Gardens

Solution – raking screw piles in 3 metre sections with pile cap

Factory Complex, Wirraway Drive, Port Melbourne

Problem – Collapsing Soils , High Water Table , Narrow and variable band of founding strata for high line loads

Static load testing of screw piles at a factory complex in Port Melbourne
Static load testing of screw piles at a factory complex in Port Melbourne
Static load testing of screw piles at a factory complex in Port Melbourne

Solution – Extensive Static load testing of piles with CPT logs used for design. Closely spaced screw piles in shallow beams with twin helix design.