Page 171 - 《水资源与水工程学报》2022年第6期
P. 171

! 33 " ! 6 #                      & ' ( ) & * + , -                               Vol.33No.6
               2022 $ 12 %              JournalofWaterResources&WaterEngineering                 Dec.,2022

            DOI:10.11705/j.issn.1672-643X.2022.06.21


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                 KLDMN:TU411;TV641.2 5   OPQRS:A    OTUN:1672643X(2022)06016707
                   Selfhealingcapabilityofdispersivesoilbasedoncrackscouringtest

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                                                                                    1
                                                       1
                                                                  2
                                       1
                         ZHANGXiaofei,CHENXinwei,YANTao,ZHANGWenwei,LIShouyi
                  (1.SchoolofWaterResourcesandHydroelectricEngineering,Xi’anUniversityofTechnology,Xi’an710048,China;
                                2.YellowRiverEngineeringConsultingCo.,Ltd.,Zhengzhou450003,China)
                 Abstract:Inordertostudytheselfhealingcharacteristicsofcracksindispersivesoil,aseriesofdisper
                 sibilityidentificationtests,soilbasicpropertytestsandindoorcrackscouringtestswereconductedonnat
                 uraldispersivesoilsamplesfromamineinXi ’anCityandsoilsamplesfromthereservoirareaofadam
                 project ,withquicklimeandsodiumcarbonateasthedispersants.Accordingtothetests,theeffectsof
                 soildispersibility ,soilbasicpropertiesandinvertedfiltermaterialgradationontheselfhealingcharacter
                 isticsofcracksindispersivesoilwereinvestigated.Thetestresultsshowthatunderthesameinvertedfil
                 termaterial,thehigherthedispersibilityofthesoilmass,thesmallerthesoilparticlesfallenfromthe
                 cracksurfaceafterwettinganddisintegration ,theslowerthecrackhealingandthebetterthefinalself
                 healingeffect.Theselfhealingcharacteristicsofcracksareinfluencedbythechangesofvariousindica
                 torssuchasthebasicpropertiesofsoil ,amongwhichtheinfluenceofpHisthemostsignificant.Under
                 thesametestsoilsample,astheparticlesizeoftheinvertedfilterdecreases,theauxiliaryimpermeability
                 effectoftheinvertedlayerandthecrackhealingqualityimproves.
                 Keywords:dispersivesoil;crackselfhealingcapability;crackscouringtest;corewallimpermeable
                 soil ;invertedfiltermaterial

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