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| Study on similar displacement materials simulation on roof in deep and large inclined fully mechanized working face |
| She Xiaoyu |
| Yongdingzhuang Mining Industry Corporation Ltd., Datong Mining Group, Datong 037000, China |
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Abstract Large inclined coal seam mining has been always a difficult problem, the support measure depends on the law of roof broken, combined with the geological condition 3237 working face in Yongdingzhuang Mine, the similar materials model was set up in the lab, first roof weighting pace, roof caving forms, relationship between periodic weighting for the first time and second periodic time were settled in the open cut eye advancing of working face model, which provided reference for working face roof control.
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