Research On Streamline Mining Schemes Of 3~# Coal Seam In Second Mining District Of Baorixile Surface Coal Mine

According to the supplementary exploration geological data of second mining district in 1# surface coal mine of Shenhua Baorixile Energy Industrial CO.,LTD,3# coal seam in second mining district is valuable to be mined in part.1# surface coal mine has been veered and transited from first mining district to second one. If it can't be mined in time, the valuable 3# and 21 coal seams in second mining district will not be mined in surface mining forever, because the valuable coal seams and their overlying rock will be buried by inner dump along with the developing of stripping and mining engineering of 12 coal seam in second mining district. Therefore, it is urgent to research on streamline mining schemes of 3# coal seam in second mining district of Baorixile surface coal mine.This paper researches on 1# surface coal mine of Shenhua Baorixile Energy Industrial CO.,LTD, builds 3d geological model, terrain model and present exploitation situation model, makes optimization schemes of mining limits and mining districts dividing of surface coal mine, compares schemes of 3# coal seam mining limits optimally, and makes development and deepening schemes of 3# coal seam. All of the above works make 3# coal seam in second mining district be mined economically and rationally, and make the stripping, stoping and dumping engineering for mining 12 coal seam be arranged coordinately with which for mining 3# coal seam, thus enhance the recovery rate of coal resources, enhance the economic benefit of surface mine, reduce advance rate of working face, and create space for following mining district continuing.