巷道过含水断层破碎带的注浆加固技术邹光华

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386Vol138No1620106CoalScienceandTechnologyJune2010邹光华1,张凤岩1,宋彦波2(1.,101601;2.,054000):冀中能源郭二庄矿-300m南大巷在掘进至3232号导向点时遇到含水断层破碎带,为了解决在该破碎带难以掘进和支护的问题,利用注浆加固技术,选用新研制的高效改性聚亚胺树脂注浆加固材料对该含水断层破碎带进行了注浆加固,实验室内的注浆固结体强度试验表明:高效改性聚亚胺树脂注浆加固材料能够明显提高破碎岩体的力学性能现场监测结果表明:采用该材料进行注浆加固,能够降低围岩的孔隙率封闭水源,同时加固了破碎围岩,提高了围岩的整体稳定性,使注浆巷道围岩的变形速度得到有效控制,使南大巷的掘进工作成功通过了含水断层破碎带:含水断层破碎带;注浆加固;高效改性聚亚胺树脂;围岩变形:TD26514:A:0253-2336(2010)06-0050-04GroutingReinforcementTechnologyforMineRoadwayPassedThroughBrokenZoneofWaterBearingFaultZOUGuang-hua1,ZHANGFeng-yan1,SONGYan-bo2(1.Dean'sOffice,NorthChinaInstituteofScienceandTechnology,Beijing101601,China;2.XingtaiTongchengScienceandTechnologyCo.Ltd.,Xingtai054000)Abstract:The-300msouthroadwayinGuo'er'zhuangMineofJizhongEnergymetthebrokenzoneofthewaterbearingfaultatNo13232guidancepointduringtheheadingoftheroadway.Inordertosolvethedifficultheadingandsupportproblemsinthebrokenzone,thegroutingtechnologywiththenewdevelopedhighefficientandmodifiedpolyimideresingroutingreinforcementmaterialwasap-pliedtogroutingreinforcementofthebrokenzone.Thelabstrengthtestofthegroutingsolidsshowedthatthehighefficientandmodifiedpolyimideresingroutingreinforcementmaterialcouldobviouslyimprovethemechanicsperformancesofthebrokenrocks.Thesitemonito-ringandmeasuredresultsshowedthattheapplicationofthehighefficientandmodifiedpolyimideresingroutingmaterialforthegroutingreinforcementcouldreducetheporerateofthesurroundingrocksandsealandclosethewaterresources.Alsothegroutingmaterialcouldreinforcethebrokensurroundingrocksandimprovethecompletedstabilityofthesurroundingrocks.Thedeformationrateofthegroutedsurroundingrocksoftheroadwaywaseffectivelycontrolledandtheheadingoperationofthesouthroadwaywassuccessfullypassingthroughthebrokenzoneofthewaterbearingfaul.tKeywords:brokenzoneofwaterbearingfaul;tgroutingreinforcemen;thighefficientandmodifiedpolyimideresin;deformationofsurroundingrocks:2007(MTKT07-033)1,,,[1],,[2],-,,,,,50DOI10.13199/j.cst.2010.06.56.zough.013:20106[2-3],,,,2211,,,ABA,B,[4-7],,1QB-25(«10mm)()[8]图1注浆加固试验系统图2单轴抗压强度试验的部分试样212,2211,,,:,,,,,,1M/PaM/Pa%/611521117344215461972743311-300m3232,,,(3),,,,,50m3/h,U,,,,,,,,[9]图3郭二庄矿-300m南大巷示意,,31231211施工方案设计:¹,,;º5120106煤炭科学技术38,;»,;¼,,,,31212充填加固注浆施工1),,2)QB-123)¹:,,,60b5,42mmº:,,8,3,30b,10~15b(,10~15b),14,,6m,4m,32mm,1,,4)QB-12,,21B1ABKY,«25mm,«10mm:yyy,,,,5),6),,,20MPa7)¹,,º3~5,2t»,,,¼,,31331311注浆加固效果分析,,,,,,4图4固结体实体,,,,,31312巷道围岩变形分析,,5,656,,,,,,,,,,,,,52:20106图5非注浆加固区内监测站的观测结果图6注浆加固区内监测站的观测结果4,,,,,,,,,,:[1],1[M].:,1994:475-491.[2],1[J].,2006,23(3):321-322.[3],1[J].,2000,29(9):454-458.[4],,,1[J].,1997,26(3):42-45.[5],,,1[J].,1998,19(3):50-53.[6],,1[J].,2004,25(S):21-24.[7],,1[J].,2004,3(1):27-31.[8],,,1[J].,2009,40(12):40.[9].[R].:,2006:44-45.:邹光华(1966-),,,,,Te:l010-61591438,E-mai:lzfy2lhy@ncist1edu1cn收稿日期:2010-01-15;责任编辑:王晓珍统一煤炭科技名词术语,对科学知识的传播,新学科的开拓,新理论的建立,国内外科技交流,学科和行业之间的沟通,科技成果的推广应用和生产技术的发展,都是不可缺少的现本刊根据5煤炭科技名词6使用规范介绍一些已废弃的和推荐使用的煤炭科技名词,供读者作者学习参考前者是已废弃的专业名词,后者是推荐使用的专业名词皮带运输机皮带机y带式输送机腐殖腐泥煤y腐植腐泥煤腐泥腐殖煤y腐泥腐植煤山岩压力围岩压力y矿山压力原始压力天然压力y原岩压力碎屑稳定体y碎屑壳质体冒落拱压力拱y自然平衡拱(本刊编辑部)53

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