Post by rob52 on Jan 7, 2020 20:00:00 GMT -5
METROPOLITAN MINE, Helensburgh, NSW
METROPOLITAN MINE UNDERGROUND Final Master Full HD
Bulli Seam
2 million tonnes ROM per annum
METROPOLITAN MINE UNDERGROUND Final Master Full HD
Bulli Seam
2 million tonnes ROM per annum
Bulli Seam nominal 6m3 to 16m3/tonne typically 98% carbon dioxide gas content with a history of outbursts
Incident 6pm on 21 March 2019,
Floor cracks on the Longwall face, workers withdrawn
Gas levels in the Longwall return peaked at levels of 16.1% methane and 15.9% carbon dioxide.
Cross measure drainage was not used for Longwall 303
Undrained interburden, other coal seams, local syncline & depth of cover transition
Gas release of 2.9Million m^3 in 6 days
www.resourcesregulator.nsw.gov.au/__data/assets/pdf_file/0004/937246/IIR19-02-Workers-evacuated-after-gas-levels-rise.pdf
www.resourcesregulator.nsw.gov.au/__data/assets/pdf_file/0018/1144512/Causal-Investigation-Report-Metropolitan-Colliery.pdf
Learning from investigations: Workers evacuated after gas levels rise
Jul 4, 2019
Floor cracks on the Longwall face, workers withdrawn
Gas levels in the Longwall return peaked at levels of 16.1% methane and 15.9% carbon dioxide.
Cross measure drainage was not used for Longwall 303
Undrained interburden, other coal seams, local syncline & depth of cover transition
Gas release of 2.9Million m^3 in 6 days
www.resourcesregulator.nsw.gov.au/__data/assets/pdf_file/0004/937246/IIR19-02-Workers-evacuated-after-gas-levels-rise.pdf
www.resourcesregulator.nsw.gov.au/__data/assets/pdf_file/0018/1144512/Causal-Investigation-Report-Metropolitan-Colliery.pdf
Learning from investigations: Workers evacuated after gas levels rise
Jul 4, 2019
Rob