The Strata 950 was the first of the three drills to begin boring an escape shaft. If the pilot hole had been completed, further drilling would have caused rock debris to fall down the hole, requiring …

The Strata 950 is designed and built within the Cementation Mining Group and is our most powerful raise drill. Depending on rock type and conditions, this equipment is capable of raises …

Plan A – begun on August 31st, it used an Australian-built Strata 950 raise bore machine usually used for drilling mine ventilation shafts, which would reach a target depth of 2,300 feet (702...

2010年8月31日 · The effort to rescue 33 trapped Chilean miners went into high gear on Tuesday as a 31-ton Raise Borer Strata 950 drill began to work round the clock drilling down to the …

2010年8月26日 · The Strata 950 raise bore machine that will drill the hole to reach the trapped miners

2022年7月26日 · Following completion of 68 ft. deep collar excavation and lining, Cementation’s Strata 950 Raise Drill was set up over the collar and a 16” diameter pilot hole was drilled with …

2010年8月31日 · The machine, an Australian-made Strata 950, was excavating at a rate of 15 meters (50 feet) a day. It will first bore a 33 centimeter (13 inch) pilot hole, and then expand it …

2022年8月3日 · Cementation Americas has announced the completion of the full faced raisebored raise at Solvay Chemicals... This website uses cookies.

2010年8月31日 · A powerful mechanical digger has begun drilling a rescue shaft at a collapsed Chile mine where 33 men are trapped some 700 metre below ground. The giant Australian …

2010年10月14日 · There are only five Strata 950 drilling machines in the world, and one happened to be at another copper mine less than 50 miles away. It was promptly hauled down …