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Outburst threshold limits – current research outcomes

Conference Paper


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Abstract


  • Since outburst threshold limits were imposed on Bulli seam mines in 1994 the occurrence

    of coal and gas outburst incidents have virtually been eliminated from the Australian coal industry. With

    the reduction in incidents and therefore hazard to the industry there has been a corresponding drop in

    research effort in this area. Some mines have in recent years reviewed and raised threshold limit

    values and non-Bulli seam mines accept the method of threshold limit value determination introduced

    by GeoGAS, based upon the DRI900 concept.

    Detailed analysis of gas desorption data from a variety of Australian coal mines, representing different

    coal seams with variable gas content, gas composition, rank, type, structure,

    etc., has been undertaken

    and the results indicate significant relationships which impact the accepted method of outburst

    threshold determination.

    The relationships are discussed and a new method

    of determining outburst threshold limits, applicable

    to non-Bulli seam mines is presented.

UOW Authors


Publication Date


  • 2010

Citation


  • Black, D. & Aziz, N. (2010). Outburst threshold limits – current research outcomes. 12th Underground Coal Operators Conference (pp. 203-209). Wollongong, Australia: University of Wollongong.

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=1956&context=coal

Ro Metadata Url


  • http://ro.uow.edu.au/coal/295/

Abstract


  • Since outburst threshold limits were imposed on Bulli seam mines in 1994 the occurrence

    of coal and gas outburst incidents have virtually been eliminated from the Australian coal industry. With

    the reduction in incidents and therefore hazard to the industry there has been a corresponding drop in

    research effort in this area. Some mines have in recent years reviewed and raised threshold limit

    values and non-Bulli seam mines accept the method of threshold limit value determination introduced

    by GeoGAS, based upon the DRI900 concept.

    Detailed analysis of gas desorption data from a variety of Australian coal mines, representing different

    coal seams with variable gas content, gas composition, rank, type, structure,

    etc., has been undertaken

    and the results indicate significant relationships which impact the accepted method of outburst

    threshold determination.

    The relationships are discussed and a new method

    of determining outburst threshold limits, applicable

    to non-Bulli seam mines is presented.

UOW Authors


Publication Date


  • 2010

Citation


  • Black, D. & Aziz, N. (2010). Outburst threshold limits – current research outcomes. 12th Underground Coal Operators Conference (pp. 203-209). Wollongong, Australia: University of Wollongong.

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=1956&context=coal

Ro Metadata Url


  • http://ro.uow.edu.au/coal/295/