Abstract: Aimingattheseriousdamagecausedbythestressconcentrationintheisolatedworkingface foralongtimeintheundergroundtransportationroadway,theminingtreatmentoftheisolatedworking faceiscarriedouttoreduceitsinfluenceonthestressconcentrationofthesurroundingrockoftheroadway.Thispapercomparesandanalyzesthestresstransferlawofroofandfloorofisolatedworkingface beforeandaftermining,andprobesintothelawofroofsupportingpressureofisolatedworkingfaceand theverticaldistancebetweenunderlyingtransportationroadwayandisolatedworkingfacefloorbynumericalsimulation.Itfoundthatwiththeincreaseofthedistancefromthefloortothefloor,thestress concentrationofthesurroundingrockoftheroadwayshowsadecreasingtrend.Whentheisolatedisland faceismined,thestressofthefloorisobviouslyreleased.Thestressconcentrationfactorofsurrounding rockoffloorroadwayisreducedby52% ~ 60%,andtheshearfailureofsurroundingrockoffloor
roadwaypresentsX failure,which providestheoretical basisfor the optimization of surrounding rock supportinsubsequentroadway.