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Grosvenor Mine Drift Driveage development

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Project: Grosvenor Mine Drift Drivage development
Location: Moranbah, QLD
Client: Anglo American Australia
Value: $100 million (Drivage)

$10 million (Dirft fitout)

Start Date: Dec 2014
Finish Date: Feb 2016
Project Description: Anglo American’s Grosvenor Mine is a flagship project in the Moranbah Region, producing its first longwall coal in May 2016. The site is located approximately 190 kilometers south-west of Mackay, and has an anticipated mine life in excess of 30 years.

Mastermyne were engaged to follow on from the TBM drift construction and undertake the initial drift development works including pit bottom and tailgate works. This project helping Anglo to reach their first longwall coal milestone seven months early and more than $100 million under budget.

Mastermyne recruited and mobilised a workforce of over 280 personnel, including some statutory positions.

Mastermyne also completed the Drift Fitout works at Grosvenor Mine. Using innovative modified civil tunnelling construction methods, we were able to reduce the schedule from 43 weeks to 28 weeks. A suitable mine life running surface was required within the circular concrete lined drifts as delivered by the TBM. To achieve this result a floor piece was designed as precast T unit concrete sections.

In addition to the roadway surface man refuge bays were to be constructed. These required the removal of the precast drift lining, canopy tubes drilled and grouted for primary support, excavation of the refuges, and then lining with shotcrete. All constructed using Brokk underground compliant excavator.

This project was awarded the 2016 Queensland Contractor Awards ‘Time Saving Initiative’ Award.

Key Statistics

Average development M/week 200
Average development MPOH 2.2
Average weekly operating hours for development 90-100
Roadway cutting width & height 3.6m (H) x 5.4m (W)
Peak Workforce: 266
Miner: JOY 12CM12
What we do

Senator the Hon Michaelia Cash, Minister for Jobs and Innovation, Senator Matt Canavan, Minister for Resources and Northern Australia and Member for Dawson George Christensen visited the new Simulated Underground Mine Facility. They were guided through the facility by MyneSight Operations Manager Brenda Witt and Mastermyne Group Managing Director Tony Caruso, alongside other dignitaries and […]