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What caused the explosion at Pike River mine?

What caused the explosion at Pike River mine?

The immediate cause of the tragedy was a large methane explosion. Methane is found naturally in coal. Effective methane management is essential in an underground coal mine. Undoubtedly there was a failure to control methane at Pike River on 19 November 2010.

What did they mine at Pike River?

The Pike River Mine disaster was a coal mining accident that began on 19 November 2010 in the Pike River Mine, 46 km (29 mi) northeast of Greymouth, in the West Coast region of New Zealand’s South Island following a methane explosion at approximately 3:44 pm (NZDT, UTC+13).

Where was the Pike River mine disaster?

Pike River Mine
Pike River Mine disaster/Locations

How deep is the Pike River mine?

150 to 200 metres
The Pike River mine reaches the Brunner coal seam at depths of 150 to 200 metres below ground level. This is deeper than other NZ open-cast coal mines and likely to be uneconomic.

How much has Pike River recovery cost?

The recovery project, which cost $51 million, plus at least $10 million for the police – was never about recovering the bodies, which are trapped behind a massive rockfall, but was intended to search the drift for possible evidence of what caused the explosions.

How much money is spent on Pike Rivers?

More than $50 million has been spent.

How many died in Pike River?

Twenty-nine men
Twenty-nine men were killed when an explosion ripped through the Pike River mine on the west coast in November 2010. Their bodies have not been recovered, and remain in the mine.

What is tunnel drift?

All horizontal or subhorizontal development openings made in a mine have the generic name of drift. These are simply tunnels made in the rock, with a size and shape depending on their use—for example, haulage, ventilation, or exploration.

What is a Rocsil plug?

The “Rocsil” (brand name) plug will provide a separation barrier between the fresh air atmosphere in the drift, and the nitrogen and methane atmosphere of the mine workings. All equipment, product and personnel were flown by helicopter to the ventshaft site last week.

What are the advantages of drift method?

Drift method 30.4. Field experience has shown that the central drift is the best choice, as it offers better ventilation and requires lower quantities of explosives. The side drift, however, has the advantage that it permits the use of timber to support the roof.

How many people died in the Pike River Mine?

Twenty-nine men lost their lives, and their bodies have not been recovered. Their names and details appear on pages 4–5 (see: Pike River mine memorial ). Two men survived the explosion. They were in the stone access tunnel (drift), a distance from the pit bottom area where the main workplaces were located.

Who are the men who survived the Pike River mine explosion?

Their names and details appear on pages 4–5 (see: Pike River mine memorial ). Two men survived the explosion. They were in the stone access tunnel (drift), a distance from the pit bottom area where the main workplaces were located. Although initially overcome, Daniel Rockhouse rescued himself and his colleague Russell Smith.

How did the Pike River Mine Re-Entry team?

Watch: Wednesday’s milestone marks the furthest distance the re-entry team will travel inside the mine. Credits: Video – Newshub; Image – Pike River Recovery Agency The Pike River re-entry team has successfully reached the roof fall of the mine, ending any hope families had of recovering any remains.

How is the mine drift at Pike River closed?

This modal can be closed by pressing the Escape key or activating the close button. The Pike River re-entry crew steps into the mine drift. (Video first published on May 21, 2019) This story was originally published in Newsroom.co.nz and is republished with permission.