Is Underground Coal Mining Industries “Social License at Risk” in Queensland?
I fear for the future of Under Ground Coal Mining in Queensland. As an old retired Miner those are hard words to say. But the question has to be asked…
In addition, the manager, albeit prompted by others, arranged for a risk assessment of the proposed extraction design. The assessment made scant reference to spontaneous combustion and then only with a low level probability that it could arise from the extraction of bottom coal. Moreover, the consequence of an occurrence was rated at the lowest safety level, mentioning short panel life and use of continuous gas monitoring as existing safeguards
This Mining Inquiry comment has a familiar ring after the Grosvenor Inquiry. Mine Manager being prompted about spontaneous combustion risk assessment. Spontaneous Combustion rated low. Use of continuous gas monitoring…
A floor heave event occurred releasing CH4 gas into working face in MG104. The gas release event caused the Continuous Miner to trip power on the GB gas sensor. A hand held gas detector at the continuous miner recorded peak readings of 1.1% CH4 while the second unit presented an off-scale reading.
A Methane Inrush is a Methane Inrush no matter whether it is referred to as floor-blow incidents or methane floor blowers, or floor blowers in the goaf or floor heave events…
Inspectorate Structured Audit (SAG) Report on Gas Management. A copy of the Report, Mandatory Corrective Actions (MCAs, two in number) and Recommended Corrective Actions (RCAs, six in number) had been forwarded to Mr Kirsten by email.
Inspectors Marlborough and Gouldstone provide their Audit Report on Gas Management inform the Grosvenor Management that there are Two Mandatory Corrective Actions and Six Recommended Corrective Actions. MRE - Grosvenor…
It was also acknowledged that continued HPl’s with Methane greater than 2.5% was not satisfactory and the mine must ensure that such HPl’s are minimised, and preferably eliminated going forward. OR WHAT?
This is the concluding paragraph of the Inspectors MRE from the 19th of May 2018. It was also acknowledged that continued HPl's with Methane greater than 2.5% was not satisfactory…
One mandatory action was identified and a further 3 recommendations from Gas Management audit at Grosvenor Mine from 17 April to 19 April 2018.
Inspectors of Mines, Richard Gouldstone, Les Marlborough and Paul Brown conducted a Gas Management Audit at Grosvenor Mine from 17 April to 19 April 2018. It is a a very…
Is there interest in Public Meeting in Moranbah about Grosvenor Mine and Mines Inspectorate August 24th to 26th?
I have had a few people contact me about having public meetings about Grosvenor Mine and the Mines Department. I am currently planning on being in Moranbah between the 24th…
The meeting was called at the request of Inspector Marlborough to discuss the recent 27 exceedances of 2.5% methane in the LW102 TG. Reconsidering if the bleeder could be made a return. Inspector Marlborough requested a copy of the Ventsim model which was the basis for the Mine decision to discount this option
A further 22 Methane HPI's occur between the 18th of January and the 19th of March 2018. On Monday 19 March 2018, Inspectors Marlborough, Brown and Gouldstone held a meeting…
Following exerted pressure from the Department and greater recognition by Mines of the hazard of elevated methane levels, substantially more effort and investment had been made into methane drainage capacity and efficiency. This was clearly increasing the amount of gas drained, decreasing operational downtime by early intervention to avoid exceedances rather than cutting to trigger trip events. Most importantly risk was being reduced.
Between the 6th and 8th of January there were Five (5) methane HPI’s in the Tailgate of LW 102. The first when the Longwall had retreated 29m and the last…
Grosvenor Inquiry. There were, can I suggest, 27 methane HPIs on longwall 102? There was an acknowledgment that continued HPIs with methane greater than 2.5 per cent was not satisfactory and the mine must ensure that such HPIs are minimised and preferably eliminated going forward?
At the Grosvenor Inquiry, Inspector Smith was taken to the MRE of the 8th of May 2018 by Inspectors Marlborough and Gouldstone where the number of Methane HPI's since LW…