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Coal Mining Methods China 1

Coal Mining Methods China 1

Jan 17, 2019 Figure 1. Schematic diagram of the influences of coal mining on the environment. (a) Caving mining; (b) Backfilling mining. To solve the problems caused by the high-intensity mining of coal, scholars in China proposed a coal mining method with backfi lling of goafs [13 16]. Backfill materials prepared with solid wastes

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