Title: Theoretical research on roof damage of the fully mechanized top-caving mining coal seam with deep dip angle
Abstract:In order to study on roof pressure of the steep coal seam, it is very necessary to establish a related mechanical model to analyze the roof breaking law. Based on a working face of SDIC Nileke Mine, a...In order to study on roof pressure of the steep coal seam, it is very necessary to establish a related mechanical model to analyze the roof breaking law. Based on a working face of SDIC Nileke Mine, a mechanical model of roof facture of deep dip angle coal seam when first roof weighting and periodic roof weighting was built in the study. The model was analyzed in dip direction and along the advancing direction of the working face. Based on the stress analysis of the model, the formula about the distance of roof breakage was given. The stress, deformation and failure discipline of complicated full mechanized top-caving coal seam with deep dip angle were studied, which enriched the theory of roof damage as also. The research conclusions provide theoretical basis for the coal mine safety support, and other similar research on the roof failure discipline of full mechanized top-caving coal seam with steep dip angle can use it for reference.Read More
Publication Year: 2016
Publication Date: 2016-11-28
Language: en
Type: article
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