In this project FIELD Engineers together with WALZ Group assessed structures and planned a removal of aged conveyor galleries. This project involved removing galleries up to 155 t while considering corrosion, a busy shipping schedule, and the Great Barrier Reef Marine Park.
FIELD and WALZ were honoured to receive the prestigious CICA Project of the Year Award in 2019 for this work.
- Gallery spans weighed up to 155 tonnes.
- Galleries were heavily corroded and structurally compromised, adding complexity to lift planning.
- Work could not disturb the busy port shipping schedule.
- The work could not endanger the nearby Great Barrier Reef Marine Park.
Challenges & Approaches
Detailed risk assessments on both the lift and the overall project set the scope of engineering analysis.
Roadway (deck units) were stripped out of the structure to reduce weight in a process designed with a 30-minute cycle time.
Gantry sections were supported and cut in half (using an innovative “marine forklift”) to allow for a smaller crane and barge to fit within the wharf structure, away from coal ships.
Innovative approaches certified with full engineering analysis allowed the above methods, and prevented disturbance to surrounding structures during removal.
You can read more detail about the project in the Cranes and Lifting magazine article.
Innovative approaches to the complex aspects of the project allowed a fast, efficient and safe removal process. Industry peers recognised the success of this project with the CICA 2019 Project of the Year Award.
Lift windows took into account shipping schedules, tides and weather, and all lifts executed according to plan. This saved time and money.
All structural elements were inspected and assessed with detailed mass and CoG calculations verified on site, ensuring no surprises during lifts.
Engineering-specific risk assessment gave the crane crew input into the lift planning, design and analysis processes.
Recent case studies
Our diverse portfolio is a reflection of the expertise and skills FIELD Engineers possess and a testament to the commitment of our team.
Wheeled Bagasse Loader Fire, Mackay
The complete loss by fire of a wheeled loader during bagasse stockpiling occurred at Mackay Sugar’s Marian Mill.Read More
Conveyor Bridge Collapse, at a Goulburn NSW quarry
A large overland conveyor system at a quarry near Goulburn, NSW experienced a catastrophic collapse during operation, after experiencing ‘slumping’ of the structure.Read More
Crawler Crane Boom collapse, on a construction site in Darra, Brisbane
When a crawler crane boom collapsed during construction of commercial property in Darra, Queensland, a forensic engineering investigation was required to determine the cause of failure.Read More
Gantry Crane Drive Failure, at the Westconnex Stage 2 of the M5 roadway, Sydney
FIELD Engineers was engaged to investigate a dropped load due to gantry crane failure during construction of a tunnel project. The forensic engineering investigation aimed to determine the cause of failure.Read More
Jacking beak design for mining electric rope shovels
Innovative design to minimise shutdown time, getting the shovel back to work sooner.Read More
Lihir Gold Overhead Crane Inspections
Newcrest Mining engaged FIELD Engineers to carry out 3rd party annual inspections on over 200 overhead cranes and monorails.Read More
CICA Lift Project of the Year
Engineers designed a system to remove 40-year old corroded offshore structures.Read More
ROM Structure Bracing Design
FIELD Engineers completed the design of a structural bracing system.Read More
Mining Haul Truck Recovery
Engineers prepared the lift plans for the recovery of a mining haul truck.Read More
Dragline Mast Head machined from a single plate
The team at FIELD designed a dragline mast head machined out of 180mm steel plate.Read More
Lihir Gold Crane Fleet Audit & Maintenance Strategy
The audit & retirement or overhaul plan development for over 40 cranes.Read More