膨胀性松散破碎软岩巷道注浆材料研究与应用王涛

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doi10.11799/ce2019100262019-06-03“”2017YFC0603004“”2017YFC08042051985—E-mailwanbvc@163.com。.J.20195110118-122.1212121.1000132.100013XPM-、。XPM。XPMTD353A1671-0959201910-0118-05ResearchandApplicationofGroutingMaterialforExpansiveLooseandFracturedSoftRockRoadwayWANGTao12YANGJing-he12FUYu-kai121.CoalMiningandDesigningDepartmentTiandiScienceandTechnologyCo.Ltd.Beijing100013China2.CoalMiningandDesigningBranchChinaCoalResearchInstituteBeijing100013ChinaAbstractInordertoimprovethestrengtheningeffectofcement-basedgroutingmaterialonexpansivelooseandbrokensoftrockinlaboratorythefluidityconsolidationrateandcompressivestrengthofthegroutingmaterialreinforcedbyXPMnanogroutingagentcementanchorgroutingarestudied.Thesuitableratioofthegroutingmaterialisfound.ThatisthedosageofXPMnanoperfusionagentis8%to10%andthewatercementratiois0.5~0.6.TheexperimentalresultsshowthattheuseofXPMnanoperfusionagentcansignificantlyreducetheamountofwaterslowdownthesegregationprecipitationimprovefluidityandenhancetheinjectionrate.Itcanshortensolidificationtimereduceshrinkagerateandimprovecuringstrength.Itlaysafoundationforensuringthequalityofgroutingconstruction.AndithasbeensuccessfullyappliedintherepairandreinforcementoftheroadwayofthecaryardatthebottomoftheshaftinYuxicoalmine.KeywordsexpansibilitybrokensoftrockanchoragereinforcementXPMnanogroutingagentfluidityconsolidationratecompressivestrength、、、、、1-4。、、、。50.3∶10.8∶1。67、。、、、、。8115110COALENGINEERINGVol.51No.10。XPM、89。、、。1XPM-XPMSiO2AL2O310%8%。XPM2.2~2.4g/cm3150~180kg/m3327.7×10-9m9000XPMC-S-HXPM。XPM0.5∶1~0.6∶11。15%7%7%10%7%。18%~10%0.5∶1~0.6∶11∶125%7.5%~10%60%。XPM25、8%~10%。1XPMP.O32.5XPM/%/g/g/mL/s/cm/%52547563047073546584046010504502500.5∶122.530—3000.6∶118.5337.52500.5∶11834—3000.6∶11636102500.5∶120.532153000.6∶11735152500.5∶11834103000.6∶11637102500.5∶116.537—3000.6∶114.538.57.552550063050073550084050010505002500.5∶119.531—3000.6∶118.53412.52500.5∶11934—3000.6∶11637102500.5∶120.531103000.6∶118.5347.52500.5∶119.53317.53000.6∶116.536152500.5∶120.535—3000.6∶1153810——5005001∶11839258%~10%20.5∶1~0.6∶11∶125%7.5%~10%60%~70%33%32.528d28.1MPa911201910XPM28d55.3MPa96.8%。XPM、。XPM。2XPMP.O32.50.5∶1/kgXPM/kg/mL/cm500—400374505025038/s500—400194505025016.5/%500—146—450509833/MPa5000—50008.63d16.57d28.128d4500500250016.93d30.17d55.328d22.13#20m650m5.4m4.5m。36.7MPa22mm、2.4mBHRB50050kN120N·m0.8m×0.8mC20。22mm、7.3m150kN1.8m1~6。660mm420mm、、680mm。。。2.2、、、158.0~10.0m510、0~1.6m72.0m、2.5m、2.8m、4.3m、5.3m、5.5m、6.1m7.3m。0.6m、1.3~2.9m、4.1m、6.5m7.6m。。7.0m。、。3。3X-/m/%/%SI/SIKCC/S/%I/SC/S58.0—771544—20—62.0/751654—20—58.6/791434—20—SI/SIKCC/S。021201910358%~62%77%15%4%4%20%。。2.3、、。。、。0~7.0m、。。10-14。、1516。。。。XPM、、32.58%~10%XPM。33.1。32.5XPM-8%~10%-0.5∶1。=5.0m×4.0m1a、3m7mΦ36~58mm1.7~1.8m1.8m2MPa5MPa。3.2、、。1mm、1bMSGLW-500/22-2400190kN400N·m1.0m×1.0mΦ6.5mm2.1m×1.1mC20。550kN、22mm、7.3m4.3m300mm×300mm×16mm。2.0m2m1.9m。2.0m200kN1212019101.97m300kN。3MPa。3.3406m295614684m974.4t93.5t39t7.3m14564.3m624。2。235mm12mm。241XPM-8%~10%。0.5∶1~0.6∶11∶125%7.5%~10%60%~70%XPM33%32.528d96.8%。2-8%~10%XPM0.5∶1。1.M.2003.2.J.200527169-73.3.J.200533463-66.4.J.2001232212-216.5.J.20113071454-1459.6.M.2009.7.J.2004101642-1646.8.XPMJ.201062311-13.9.XPMJ.20074345-46.10.J.20104447-453.11.J.20115808-815.12.J.2016471174-177.13.J.2015467105-108.14.J.201621163-66.15.M.2007.16.J.2003223387-390.221201910

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