Study On Fully-mechanized Mining In Ⅲ Coal Seam Of Dahu Mine

This paper has introduced the present at home and abroad of fully-mechanized mining. Combining with the occurrence characteristics inâ…¢coal seam of Dahu coal and through theoretical study, the caving ability of this coal seam is analyzed deeply from the depth of coal mining, thickness of coal seam, coal structure, parting layer number and the thickness, thickness and lithology of coal seam roof, development degree of cracks and other aspects. The feasibility of implementing the coal caving mining technology in Dahu coal is demonstrated from the technical and economic aspects. The analysis result shows that using this technology in the mine is feasible in technical and reasonable in economic. At the same time, the equipment selection on the working face is studied and the hydraulic support type fitting the working face is selected. Through pressure observation, the use situation of the plank is analyzed and studied, and the applicability of the plank is determined.