FIELD Engineers was contracted to oversee the entire replacement process of the 38 tonne CD plate during the Shutdown of Dragline DRE40. This process included the removal of the old plate and the design, analysis, fabrication, transportation and installation of the new CD. The fabrication was completed by DGH Engineering but the remaining processes were completed by the FIELD Logistics Coordinator, structural superintendent and mechanical team.
Due to the nature of the machine and shutdown operation the main considerations were:
- The replacement was to be completed within the time restrictions of the dragline shutdown.
- The process was to be completed within the shutdowns OHS standards.
- The design and fabrication cost was to be minimised where acceptable.
Challenges & Approaches
The final details of the CD included the input of the client, and the installation contractor to allow for an efficient installation and weld-out. The process undertook by the FIELD team allowed the individual design considerations to be accounted for in each step of the removal and reinstallation processes.
The new CD was installed in 36 days and at a considerable cost saving to alternative CD supply options.
Shutdown time was minimised as the replacement CD was brought to site fully assembled and ready for installation and weld-out.
Drafting and fabrication costs for the new CD were considerably cheaper than other alternatives. Along with the designs of the new CD, FIELD Engineers developed a detailed installation plan to be used in the reinstallation process.
A high-level project risk assessment was carried out with the client to confirm that all risks associated with the FIELD Engineers proposal could be controlled prior to project kick-off.
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