Ques1 - ventilation system PDF

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ventilation system...

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MQues1(a) Yes, this is the only way in and out of the mine.There was a 110m ladder As well which was impossible to climb during an emergency. (b)

Ques 2 Putting a main fan underground was the major error in ventilation system. According to international standards of mining main fans should be Protected against explosion and other hazard. So, at PIKE RIVER fans were not placed at safe place. Ques 3(a) At PIKE RIVER the levels of methane were managed through the Ventilation system and some pre-drainage of the coal seam from inSeam boreholes. (b) Yes, there were four fixed sensors which were not sufficient and well Sited also, one of them broken for 11 weeks ,one was not functioning

And one could not read above 2.96% methane. All these showed Serious methane management problem at Pike River. Ques 4 There were some more factors which were responsible for the explosion. The negligence of the workers in the mine for high volume of methane

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in the air.  The rescue team and newzealand police had no proper plan.  Ministry of economic development did not check the experience of the company in the practice of coal mining.  The DOL`s inspector did not inspect the mine properly in terms of mine safety and operational information.  Inadequate training of work force.  Poor standard of safety procedure of Newzealand government in mining industry. Ques5(a)...