Research On Shoring Technology Of Compound Roof In DongRong Two Coal Mine In Suanyashan Mine Company

Coal seventeen is a tier betoken a coal mining in DongRong two Coalmine. Self begins since backstoping is a coal seam's turn, Stope drift active workings deformation is destroyed the shoring is extremely difficult , bringing into play being restricting stope efficiency gravely, already becomes that ore producing the actual problem demanding prompt solution gravely. The peculiar compound roof, priority restoring a tier specifically for this coal seam roof is ultra-thin are to study the stope drift active workings roofs shoring and to defend problem. And every parametric rock mechanics with layers function basis is upper by the fact that the scene observes the sampling and the laboratory determining a roof , build that coal seam roof shoring two thinking Mechanics model , carry out theoretical analysis secretly scheming against, choose the area having representativeness carrying out the scene industry experiment, The surronding rock activity puts tracking into practice observing , the rock mechanics parameter determines , the model secretly schemes against to experiment tunnel to analyse the design reckoning bringing forward the rational shoring technology scheme and shoring parameter, thereby several times, the stope drift active workings shorings difficult problem producing what be confronted with coal seam seventeen from DongRong two Coalmine having resolved east glory fundamentally, has improved the actual backstoping ability being a coal seam's turn , has reduced roadway support cost , has got the fairly good economic effect.