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《Coal Technology》 2017-09
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Study on Feasibility of Paper-thin Coal Seam Fully Mechanized Ascending Re-mining

PENG Yang-hao;FANG Peng-shuai;DAI Xu;ZHANG Li-yang;School of Mechanics and Civil Engineering,China University of Mining and Technology (Beijing);Faculty of Resources and Safety Engineering, China University of Mining and Technology (Beijing);Zhaolou Coal Mine, Yanzhou Coal Mining Heze Energy and Chemistry Industry Company Limited;  
Aimed at the actual situation of Dali company the upper Yizuo coal seam influenced many times by mining the lower Shanqing and Yeqing coal seams,upward mining ratio method, "three zones" discrimination method, mathematical statistics method and balance method of surrounding rock were used to analyse feasibility of 5301 working face mining in Yizuo coal seam, and plastic zone and stress field, displacement field distribution of surrounding rock and the working face mining pressure behavior law were researched by numerical simulation after the lower coal mining, combined with the mining pressure monitoring to prove the feasibility of extremely thin coal bed upward mining.
【Key Words】: paper-thin coal seam upward mining re-mining feasibility
【Fund】: 国家自然科学基金面上资助项目(51474218;51134025)
【CateGory Index】: TD823
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