煤矿采空区注浆处治浆液材料配比试验

28820118JournalofHighwayandTransportationRes[e-mail]10.3969/j.issn.1002－0268.2011.08.007121.2100962.221006。、、。、、、、。U419A1002－0268201108－0035－06ExperimentonMixingRatioofGroutingMaterialforTreatmentofCoalMineGoafLIHanguang121.SoutheastUniversityNanjingJiangsu210096China2.XuzhouExpresswayConstructionAdministrationXuzhouJiangsu221006ChinaAbstractForusinggroutingmethodfortreatmentofcoalminegoaftheselectionofgroutingmaterialisofparticularimportance.Theimprovementeffectoftreatmentofcoalminegoafdependsonconcretionstrengthconcretionratioandfillingratio.Thecorrelationofmixingratiowithgroutingparametersconcretionstrengthconcretionratiosettingtimedensityandfluiditywasdiscussedandthereasonablemixingratiowasalsoderivedforthetreatmentofcoalminegoaf.Theresearchcanbetakenasareferenceforgroutingtreatmentofcoalminegoafinexpresswayconstruction.Keywordsroadengineeringgroutingmaterialmixingratiocoalminegoaf0。1－2。、。。、、3－5。－100!－500m。、。1、。3。28。P.O42.5、1、2。、、51.75%、31.08%、6.08%3。。1Tab.1Physicalpropertyofordinaryportlandcement/%/min/min/mm＜10≥45≤10×60＜50.61612070.52Tab.2Mechanicalpropertyofordinaryportlandcement/MPa/MPa/d328328≥4.0≥6.5≥21.0≥42.55.610.527.252.33Tab.3Fly-ashparticlescomposition/%mm/%1.180.50.250.075.2610098.792.866.256－7CaOH2。。CaOH2。2P.O42.545。6。。、、、、、。、。420∶80Tab.4Testresultofcementfly-ashslurrysolidphaseratio=20∶80/g·cm－3/%/h∶m/h∶m/MPa7d28d11∶1.01.27268.261∶3066∶100.330.9721∶1.11.28671.255∶2559∶550.3051.0731∶1.21.30074.449∶1054∶100.381.1441∶1.31.31477.243∶547∶500.411.2751∶1.41.32880.437∶2041∶100.441.4161∶1.51.34083.431∶1536∶200.481.59540∶60Tab.5Testresultofcementfly-ashslurrysolidphaseratio=40∶60/g·cm－3/%/h∶m/h∶m/MPa7d28d11∶1.01.33066.627∶2030∶101.112.6721∶1.11.34069.225∶3028∶001.333.2431∶1.21.35271.623∶3026∶101.483.5441∶1.31.36474.821∶2024∶001.633.7951∶1.41.37677.219∶3022∶101.763.9661∶1.51.38780.017∶1019∶401.884.3162%40∶60Tab.6Testresultofcementfly-ashslurrymixedwith2%waterglasssolidphaseratio=40∶60/g·cm－3/%/h∶m/h∶m/MPa7d28d11∶1.01.32868.626∶0028∶100.691.4421∶1.11.33870.824∶1026∶300.731.6031∶1.21.34873.422∶3025∶000.751.7441∶1.31.36076.420∶1523∶100.811.8951∶1.41.37479.018∶1021∶000.872.0861∶1.51.38684.615∶1017∶500.912.172.1、1、2。1。27d6381Fig.1Compressivestrengthofconcretionwithdifferentmixingratios240∶6020∶80Fig.2Growthrateofconcretioncompressivestrength40∶60solidphaseratiorelativeto20∶80solidphaseratio28d7d300%28d200%1002。328d7d7～28d250%3。1∶1.24。328d7dFig.3Growthrateofconcretioncompressivestrength28drelativeto7d440∶60Fig.4Decreasingrateofconcretioncompressivestrengthafteraddingwaterglasssolidphaseratio40∶601∶1.1!1.2。2.2。、5、6。1、。2、1!2h。3、。4、40∶6020∶80、7。、7328、。5Fig.5Initialsettingtimeofslurrywithdifferentmixingratios6Fig.6Finalsettingtimeofslurrywithdifferentmixingratios7、Fig.7Decreasingratesofinitialandfinalsettingtimewithsolidphaseratioincreasing、20∶80、。、、。2.38。8Fig.8Concretionrateofslurrywithdifferentmixingratios20%。。2.48－96、7。。9Fig.9Relationbetweenfluidityandwaterglasscontent2.510。。3。3.10.4∶0.60.2∶0.8≥1∶1.2。1∶1.2。83810Fig.10Densityofslurrywithdifferentmixingratios3.2、。101∶0.8!1∶1.3。1∶1.31∶0.8。2%。10%!30%2∶1!1∶170%!90%1∶1.1!1∶1.3。30%!50%2∶1!1∶150%!70%1∶1.1!1∶1.3。3.32%1!2h。、11。、、。4、、、、。1、、、。2。31∶0.8!1∶1.3、、、。4、、。References1．J．1996123－28．ZHANGZhipei．TheGroutingTechnicalTreatingofCoalMined-outRegionforExpresswayJ．Middle-SouthHighwayEngineering1996123－28．2．J．20043019113－115．YUHuazhangZHENJunjieLIHaigang．StudyofMaterialsinGroutingJ．ShanxiArchitecture20043019113－115．3SARGANDSMHAZENGA．HighwayDamageduetoSubsidenceJ．GeotechnicalSpecialPublication19881918－32．4．D．2008．BAIZhaopeng．StudyofGroutingTreatmentofMined-outAreasunderExpresswayD．Xi'anXi'anUniversityofTechnology2008．5．D．2010．LIUTao．GroutingoftheunderMined-outAreasofTai-JiaFreewayD．Xi'anNorthwestUniversity2010．6．M．199151－98．SHENWeiHUANGWenxiMINPanrongetal．CementChemistryM．WuhanWuhanUniversityofTechnologyPress199151－98．7．9328J．199828197－102．PANGanghuaWANGAiqinSUNWeietal．MeasuresforImprovingthePropertyofFlyAshCementJ．JournalofSoutheastUniversityNatureScienceEdition199828197－102．8．J．200939－12．ZHANGHuiping．TheResearchandApplicationofGroutMixtureRatioinMined-outRegionJ．ShanxiScience＆TechnologyofCommunications200939－12．9．J．2002324643－647．TONGLiyuanPANShiQIUYuetal．ExperimentalResearchonGroutingMaterialwithLargeVolumeFlyAshJ．JournalofSoutheastUniversityNatureScienceEdition2002324643－647．10．J．20064117－120．HUANGHebingTONGLiyuanDUGuangyin．StudyonDisposalofCoalMinedZoneinWestSectionofBeijing-FuzhouExpresswayaroundXuzhouCityJ．CommunicationsStandardization20064117－120．11．J．2005366456－459．TONGLiyuanYEHaixiaLIUSongyu．TestResearchonGroutingMaterialsforTreatingAbandonedMineunderBuildingsJ．ArchitectureTechnology2005366檸檸檸檸檸檸檸檸檸檸檸檸檸檸檸檸檸檸檸檸檸檸檸檸檸檸檸檸檸檸檸檸檸檸檸檸檸檸檸檸檸檸檸檸檸檸檸檸456－459．《》20118DOI《》DOI20118DOI。DOIDOI10.3969/j.issn.1002－0268.yyyy.nn.zzz。“10.3969”DOI“j”“issn.1005－8095”ISSN“yyyy”“nn”“zzz”。《》201181DOI10.3969/j.issn.1002－0268.2011.08.001。IDFDOIDOIDOI。。DOIDOIhttp//檸檸檸檸檸檸檸檸檸檸檸檸檸檸檸檸檸檸檸檸檸檸檸檸檸檸檸檸檸檸檸檸檸檸檸檸檸檸檸檸檸檸檸檸檸檸檸