东庞矿水淹巷道构造破碎带高冒区加固技术杜士波

378Vol137No1820098CoalScienceandTechnologyAug.2009杜士波(,054201):为了解决东庞矿水淹巷道局部出现的围岩破碎片帮冒顶的问题,结合现场具体地质条件,提出了采用锚杆锚索+高分子化学注浆材料加固技术处理冒落区,通过改变巷道围岩结构提高岩体的整体强度采取加固技术后,每班的施工进度由015m提高到了115m;采取加固技术比采用绕道法多回收煤炭资源5000t:构造破碎带;水淹巷道;高冒区;化学注浆;巷道加固:TD35:A:0253-2336(2009)08-0014-04ReinforcedTechnologyforHighRoofFallingAreainStructureBrokenZoneofMiningGatewayofDongpangMineDUShi-bo(JinniuShareCompany,JizhongEnergyGroup,Neiqiu054201,China)Abstract:Inordertosolvethesurroundingrockbroken,sidewallspallingandrooffallingproblemsoccurredinpartialareaoftheminewaterfloodedroadwayinDongpangMine,incombinedwiththesitecertaingeologicalconditions,acombinedreinforcedtechnologywiththebol,tanchorandpolymerchemicalgroutingmaterialwasprovidedtotreattherooffallingarea.Theintegratedstrengthoftherockmasscouldbeincreasedwiththeimprovedsurroundingstructureofthemineroadway.Afterthereinforcedtechnologyadopted,thereconstruc-tionspeedpershiftwasincreasedfrom015mto115m.Incomparisonwiththeroundaboutwayreconstructionmethod,thereinforcedtechnologycouldrecovermorecoalresourceswith5000.tKeywords:structurebrokenzone;waterfloodedroadway;highrooffallingzone;chemicalgrouting;mineroadwayreinforcement,,,,2606,,,20m,,,,2606126062600,2414m,315m,,615m;,318m220m013m1414mf101,F18,30m,,,2,f53414m,f52215m,,,F18,F1835m,20m,6m,,,,30m,14DOI10.13199/j.cst.2009.08.19.dushb.003:20098,,1,20m11)6图12606下工作面冒顶区域平面图22112606,21),,,,,,,,,,2),,,,,,212,,:,,,,,,,,2213,,;图22606下工作面冒顶区域局部剖面,,,,2~7MPa,2m3/min,1B27,2,1B1;,4B1,10mm25mm4mm,112m,,,,,«28mm,,,3,2214m,3316m,4418m4,10,,/0,,,,3311F18,F1835m,,,,16m,6m,/0,29m,,,20m,,1520098煤炭科学技术37,,2~8m,,,,,,,,,23d,58,2,t14t312,,30m,20m,,:5m,2~8m,,41m,,,,,,,6~10,12,,,,,5~6m,,,,2115,5,t,,1513m,2,3,4,5,46d,81,27t4,15m,,1,31)616图3整修后巷道围岩移近量变化曲线1),,,980mm;,,820mm2),,,,3),150kN200kN,,,4),,50MPa,,5260670d,139,2,t41,t65m,59m,16:20098,,:1)015m115m,,,2),,,5000,t3)+,,,,,,,2606,2004,2606,87135t,:[1],.[M].:,1994.[2],.[J].,2008(5).[3]1[M].:,2000.[4],,.[J].,2008(5).[5],,,.[J].,2004(12).[6]1[D].:,2003.[7]1[J].,2006(3).[8]1[J].,2008(10).:杜士波(1957-),,,,,Te:l13603190028,E-mai:ldushb@nny1com1cn收稿日期:2009-03-15;责任编辑:王晓珍(13)»,,31),,2),,3),3m120m,20m4),,:[1],,1()[J].,2007(1).[2],,,1[J].:,2008(1).[3],,,1[J].,2007(2).[4],1[J].,2007(4).[5],,1[J].,2007(6).[6],,,1[J].,2007(1).:潘卫东(1982-),,,,Te:l010-62339050,E-mai:lpanweidong82@1261com收稿日期:2009-04-18;责任编辑:曾康生17