(PDF) COAL MINING METHODS - ResearchGatePDF | Minerals and mineral products are the backbone of most industries. . This report highlights the coal mining methods, their significances, issues of concern and .. The process of contour mining begins with constructing roads to access the coal ... Underground mine ventilation provides a flow of air to the underground.coal mining process flow pdf,Coal Mining and Production - MIGAby surface processes, which are generally less costly (per ton of coal) than underground mines of similar capacity. . surface processes. Here removal of overburden and coal extraction .. groundwater flow patterns. Further Information.
coal mining process flow pdf