Page 84 - 2024年第55卷第1期
P. 84

学报,2020,42(10):1914 - 1921.
                [23] WANGY,WANGG,ZHONGY,etal.Comparisonofdifferenttreatmentmethodsonmacro - microcharacteristics
                       ofYellowRiversiltsolidifiedbyMICPtechnology[J].MarineGeoresources& Geotechnology,2023,41(4):
                      425 - 435.
                [24] 王钰轲,曹天才,宋迎宾,等.基于菌促方法和酶促方法的黄河泥沙加固参数试验研究[J].浙江大学学
                       报(工学版),2023,57(6):1100 - 1110.
                [25] 中华人民共和国住房和城乡建设部,国家市场监督管理总局.土工试验方法标准:GB?T50123—2019[S].
                       北京:中国计划出版社,2019.




                             ExperimentalstudyonwaterstabilityofYellowRiversiltsolidified
                                    bysoybean - ureaseinducedcarbonateprecipitation
                                                     1,2,3
                                                                                         1,2,3
                            WANGYuke   1,2,3 ,CHENHao   ,SONGYingbin   2,4,5 ,WANGZhenhai ,
                                                          1,2,3
                                                                         1,2,3
                                             ZHONGYanhui ,ZHANGBei
                          (1.SchoolofWaterConservancyandTransportation,ZhengzhouUniversity,Zhengzhou 450001,China;
                          2.NationalLocalJointEngineeringLaboratoryofMajorInfrastructureTestingandRehabilitationTechnology,
                                                   Zhengzhou 450001,China;
                       3.Provincialandministerialcollaborativeinnovationcenterforundergroundengineeringdisasterpreventionandcontrol,
                                                   Zhengzhou 450001,China;
                      4.YellowRiverWaterResourcesCommission,YellowRiverInstituteofHydraulicResearch,Zhengzhou 450003,China;
                       5.RasearchCenteronLeveeSatefy&DisasterPrevention,MinistyofWaterResources,Zhengzhou 450003,China)


                  Abstract:Withtheproposalofthenationalstrategyof“transportationpower”andtherapiddevelopmentofengi
                  neeringconstructionalongtheYellowRiver,thedemandforfillingsoilhasincreaseddramatically.Thefeasibility
                  oftheYellowRiversiltasfillmaterialhasbeenconfirmed ,butitsserviceperformanceinrainyareasneedstobe
                  improved.Exploringanecologicalandefficientsiltreinforcementmethodtoimproveitswaterstabilityiscritical.
                  Basedonthis ,enzyme - inducedcalciumcarbonateprecipitation(EICP)curingoftheYellowRiversiltisproposed
                  inthispaper.WaterstabilitytestsonthecuredYellowRiversiltunderconventionalimmersionconditionsanddry -
                  wetcycleconditionswerecarriedoutrespectively.Themasslossandstrengthlossofthesamplesafterimmersion
                  werestudied.Theeffectlawofdry - wetcyclesonthesofteningindexofcuredYellowRiversiltsampleswasana
                  lyzed.TheresultsshowthatthedisintegrationprocessoftheYellowRiversiltsamplesolidifiedbyEICPtechnology
                  isslowerthanthatoftheoriginalsample.TheYellowRiversiltsampleswithcementconcentrationC = 1.5mol?Lre
                  mainedalmostintactafterlong - term(56d)waterimmersion,withmassandstrengthlossratesofonly6.36% and
                  6.21%,respectively.After10dry - wetcycles,theYellowRiversiltsampleswithdifferentcementconcentrations
                  showeddifferentdegreesofparticlelooseningandshedding.ThelossofcompressivestrengthoftheYellowRiver
                  siltsamplewithcementconcentrationC = 1.5mol?Landgroutingtimes N = 10wasonly9.96%,andtheresistance
                  towet - drycycleswasthestrongest.ByusingEICPtechnology ,theYellowRiversiltcanbeeffectivelysolidified
                  anditswaterstabilitycanbeimproved ,whichisveryimportantforpromotingtheprocessofresourceutilizationof
                  theYellowRiversilt.
                  Keywords:YellowRiversilt;EICP;dry - wetcycles;massloss;strengthloss;softeningindex


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