Client:
Rio Tinto Coal Australia Pty LtdLocation:
Queensland, AustraliaDuration:
2 YearsScope of Work:
The Kestrel Mine produces approx. 4 million tonnes of high-volatile coking and thermal coal annually for the export market, using the longwall mining method.
The Kestrel Mine Extension project (KME) included the development of two mine-access drifts and the associated in-seam coal development to allow the commencement of longwall mining activities. The first drift was 4.75 m high x 6.5 m wide and 1,425 m long at a grade of 1 in 6. The second drift is 4.5 m high x 6 m wide and 1,673 m long at a grade of 1 in 8.
The in-seam work included drivage to establish the primary ventilation circuit, the tailgate drive-head area and sufficient pit room for multiple development headings. This was followed by the development of the first longwall block.
Construction activities included roadheader excavation, steel-set installation, concrete invert, rock bolting, continuous miner excavation, shotcrete application, and permanent services installation.
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4.75 m HIGH ACCESS DRIFT |
MECHANICAL EXCAVATION UTILIZING ONBOARD BOLTERS |
4.5 m HIGH ACCESS DRIFT |
