玻璃钢单体支柱临时支护工艺在掘进中的应用王峰

4No．420194ShanxiCokingCoalScience＆TechnologyApr．2019··2019－01－151990—[e-mail]03002268310“π”。。TD355B1672－0652201904－0053－04、、。、、。68310。11.1683108#68310683106831168310。8#8#1604m．8#3.7～5.8m4.8m．1～20.2～1.5m1.2m2°～10°5°．443～669m516m．1．1.2970m、1100m、1166m1432#、1089#、1267#21m、16m、82m683105～100.5～3.0m68310942mZ1NE-SW3°～5°。1.31.3.1683100～160mEBZ260ZLJ－10/21160～360m。1.3.2683101604m4500mm3500mmd20mm×1800mmd4mm×2500mm×1100mm1350mm1.5m31/mK37.21～118.6L11.29～2.701.80.00～1.20.51.2～2.101.60.3m2.89－3.593.24d20mm×1800mm2000mm×2400mm1000mm×2400mm300mm800mm1m4。22.12.1.10.96t1t2.0m×2.1m3.4m×3.4m2.6～4.8m1～1.8m．2.1.213～5m。2、。3。4。1．2.1.31.8m1“”、。。2.22.2.113～5m。2π400mm3。1500mm1500mm3·45·201941350mm。3。4。、2．2.2.23.5m400mmπQＲB/ＲX－Ⅱ66π。2、2.2.3、“”、。。3683100～160mEBZ260ZLJ－10/21160～360m、、2．21、π61/min1145min2275min/m11.5m23m/m1.93.4/12/m8102、、“”。8m10m。468310、、。“”、·55·20194。。1．EBZ－160J．20187131－132+135．2．J．2018371130－131+37．3．J．201513522－24．ApplicationofTemporarySupportTechnologywithGlass－steelPropinCoalＲoadwayExcavationWANGFengAbstractDuetolotsofgeologicalstructuresin68310tunnelspeciallyforgaspre－drainageinDu＇erpingcoalminetheheadingworkwithforepolingbeamishardtocontinue．Thetemporarysupportoftheglass－steelsinglehy-draulicpropswiththe“π”－shapedbeamisintroducedtoimprovetheheadingrateoftheroadwayandguaranteetheroof－tightenning．Thepracticeresultsshowthatthetemporarysupportmethodwithglass－steelpropperformsbetterthanthesupportwithforepolingbeam．KeywordsGlass－steelsinglehydraulicpropTemporarysupportForepolingbeam34AnalysisonUndergroundWaterAndHiddenＲiskPreventionMeasuresinCoalMiningofXinzhiCoalMineLowerCoalGroupYAOJianweiNIUWeifengWANGKeqinQIYuemingAbstractBasedontheactualproductionconditionsofXinZhiMinethetypesandcharacteristicsofunder-groundwaterhazardsthatmayexistintheminingofthelowercoalseamsareanalyzed．Theresultsshowthatthehid-dendangersofundergroundwaterintheminecanbedividedintothreecategorieswateraboveroofwateringoafandwaterunderfloor．Ordovicianwaterunderthefloorcanbedividedintosaferzonemediumdangerzoneanddan-gerzone．Thepreventionandcontrolmeasuresareputforwardtoensurethesafeandefficientproductionbasedontheaboveanalysis．KeywordsLowercoalgroupminingUndergroundwaterhazardＲiskZoningCoalpillarforwaterpreven-tion·65·20194