Study On Bolting Technology Of Angle Of Coal Seam Variation Belt In YangZhuang Coal Mine

The thesis takes mining roadway which in Yangzhuang coal mine Huaibei mining groupas object of study , Be aimed at angle of coal seam variation and roadway section's difference , adopt computer numerical simulation,theoretical analysis and the comprehensive analysis field measurement research method, have further study on angle of coal seam variation and roadway section's difference , determine cross-section shape of roadway and bolting support parameters which applying FLAC2D. The basic characteristics's mechanical analysis model which in angle of coal seam zone have established.The research not only get the mechanical characteristics and surrounding rock displacement which have surrounding rock roadway stress distribution and plastic distribution in angle of coal seam variation and roadway section's difference,but also analized the bolt's displacement vector and axis force variation law. All above of it provides theory reference for coal roadway which in deep well under complicated geology condition, lays a theory foundation and guidance the practice.Geting good results which in technical and economic.