Control Of Mining Influence In Districtl Dip Coal Mining Area Of Hongmiao Coal Mine Face

Hongmiao Coal Mine is the typical soft rock mines, belonging to three soft coal seam, Mine production capacity of 1.5Mt/a.The roof and floor rock of seam cemented with poor.low intensity.broken loose,easily weathering and water expansion,is Three Soft Coal.Hongmiao Coal Mine is in the process of mining the coal seam of The Sixth Working Sector,due to the exploitation of the depth and geological conditions change,The Sixth Working Sector down under different superposition mining induced stress of coal seam mining face, strata behaviors is obvious, districtl dip coal mining area were Severely damaged, Seriously affected the normal production of The sixth working sector.The thesis is "Technology of Hongmiao coal face in fully mechanized coal mining area under the influence of roadway surrounding damage and rock stability monitoring and control" a part of research projects,During nearly two years of The first coal mining working face of 5-3S and The second coal mining working face of 5-1N in the recovery process,Completed track districtl dip and transport districtl dip of The Sixth Working Sector wall rock structure observation.wall rock deformation observations,wall rock pressure observation,a large number about districtl dip influence of mining actives of data has been get.On the basis of arrange collating data,use of the theoretical analysis and calculation,Learn about wall rock pressure distribution,wall rock dformation,wall rock failure mechanism of The Sixth Working Sector. Obtained the mining induced strss Scope of districtl dip,reasonable size of districtl dip safety coal block,Formulate a support Program about soft rock floor heave serious for Hongmiao Coal Mine.