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The paper describes the comprehensive mechanized mining of the status quo at home and abroad , combined with the Great Lakes coal mine the Ⅲ seam of Occurrence , theoretical research, from the coal seam mining depth , seam thickness , seam structure , folder waste rock layers and thickness , seam roof lithology thickness , and fractures , and other aspects of in-depth analysis of its caving , and from a technical, economic and other aspects of comprehensive mechanized caving technology to demonstrate the feasibility of coal mines in the Great Lakes , and ultimately determine the top coal caving mining technology in the mine technical on feasible , economically reasonable mining method to this conclusion , the study and equipment selection , the hydraulic support type selected for the face , and through the observation of mine pressure stent face , to determine the applicability of the stent .
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