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The risk of explosions in coal mines is an important subject that requires a comprehensive understanding of explosion dynamics, mining operations, and mining safety. Recent spontaneous combustion events in New South Wales (NSW) and Queensland have resulted in mine evacuations due to a Trigger Action Response Plan (TARP) being activated at the evacuation level. A sound basis is required for defining the high-risk working zones, mine operational exclusion zones for both emergency activities and mine design considerations, and public exclusion zones during emergency situations. This paper presents a methodology for predicting and defining explosion risk around the coal mine portals developed using Computational Fluid Dynamics (CFD) and experimental results from an advanced blast simulator simulating blast waves exiting a portal entry and propagating over an outside mine site terrain. The methodology can be applied to generate exclusion zones that account for the effects of blast waves ema
In Australian underground coal mines spontaneous combustion management of the goaf environment revolves around the use of a Trigger Action Response Plan (TARP). When appropriately designed the TARP is a very effective frontline tool for spontaneous combustion hazard management. However, other supplementary management tools including a highly skilled interactive management team are needed to ensure spontaneous combustion management of the goaf is effectively controlled to minimise the risk of an event developing and subsequently escalating. This philosophy has been adopted at the Narrabri Coal Operations (NCO) in New South Wales. This paper presents a reflection on the mind set and processes adopted at NCO and shows how controls such as gas monitoring, ventilation practices and the introduction of foam has enabled the mine to successfully manage and control the longwall (LW) goaf environment.
Mopani Copper Mines (MCM) | Company Profiles | Africa Outlook Magazine africaoutlookmag.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from africaoutlookmag.com Daily Mail and Mail on Sunday newspapers.