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BMA Caval Ridge Sets World Record for Largest Electronic Blast

Coal News - Published on Wed, 12 Feb 2020

Image Source: BMA Caval Ridge
BHP Mitsubishi Alliance’s Caval Ridge Mine in the Bowen Basin now holds the title of the world’s largest electronic blast completed using Dyno Nobel DigiShot technology. The blast in December saw 4.7 million cubic metres of overburden shifted in a blast fired with 2,194 tonnes of bulk explosives across 3,899 holes. Caval Ridge Drill and Blast Superintendent Dallas Gostelow said the blast was loaded over 14 days, involving engineers, schedulers and the E and F Blast crews and involved a combination of four related blast patterns, using 8,144 detonators

He said there were significant safety, efficiency and cost improvements to be made using the electronic technology. He said “Timings for the detonators are fully programmable and each blast hole is physically connected to the surface by a wire, but the systems is less complicated and fully digitised, which means higher fidelity of tie in to reduce misfire potential. The ability to fire larger blasts, or multiple blast patterns in one event, means downtime for equipment is kept to a minimum.”

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Posted By : Yogender Pancholi on Wed, 12 Feb 2020
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