2007•Coal science and technologyRequires access
Roof control and practices on coal mining under complex roof
Fang Bo-cheng
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Abstract
With the analysis on the rock features,deformation failure mechanism and roof falling accident features of the complex roof,the paper systematically provided the mining method and the complex roof control measures for C4 seam in Housuo Mine.The practices showed that the complex roof of C4 seam was effectively controlled.Therefore the roof control problem of the coal mining face under the complex roof conditions was solved.