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Calamity Hollow Mine Fire Project. 5. Excavation and Evaluation of the Fire Zone

机译：Calamity空心矿山火灾项目。 5.火区的开挖和评估

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The Bureau of Mines has demonstrated a new technological approach that utilizes controlled in situ combustion to bring fires in abandoned coal mines and waste banks under control. The new technology involves the accelerated combustion of 'waste' coals in situ under controlled ventilation conditions, which allows for total management of the combustion products, including utilization of the heat produced. The concept could significantly lower the costs for reducing the environmental and public safety hazards associated with waste coal fires and lead to the conversion of a coal waste to a coal resource.

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