Glossary of Mining Terms - Kentucky Coal EducationAngle of draw - In coal mine subsidence, this angle is assumed to bisect the .. underground mining method involving the insertion of explosives in a coal seam, the ... Mud cap - A charge of high explosive fired in contact with the surface of a.mud rehandle methode for coal mining,Methods of Mining. University of KentuckyMethods of Mining. kentucky geological survey. . In room and pillar mining, the most common type of underground coal mining, coal seams are mined by . Using this mining method normally results in a reduction in recovery of as much as 60.
mud rehandle methode for coal mining