Page 205 - 《水资源与水工程学报》2023年第3期
P. 205

!34 " ! 3 #                       & ' ( ) & * + , -                               Vol.34No.3
               2023 $ 6 %               JournalofWaterResources&WaterEngineering                 Jun.,2023

            DOI:10.11705/j.issn.1672-643X.2023.03.25


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                 ABCDE:TV698.1   FGHIJ:A    FKLE:1672643X(2023)03020107
              DeformationcharacteristicsofaslopeintheHuangjinxiaWaterConservancy
              Projectduringconstructionperiodbasedonmultipointdisplacementmeters


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                            JIANGYue ,CHENGLin ,MAChunhui ,YANGJie ,LIBo
            (1.StateKeyLaboratoryofEcohydraulicsinNorthwestAridRegionofChina,Xi’anUniversityofTechnology,Xi’an710048,China;
            2.FacultyofWaterResourcesandHydroelectricEngineering,Xi’anUniversityofTechnology,Xi’an710048,China;3.Engineering
                     SafetyandDisasterPreventionCenter ,ChangjiangRiverScientificResearchInstitute,Wuhan430010,China)
                 Abstract:MultiplesetsofstructuralplaneswerefoundontheleftbankslopeoftheHuangjinxiaWater
                 ConservancyProjectduringtheconstructionperiod.Themonitoringdatashowedthattheslopehadmulti
                 pledeformationmutations ,andmostofthedeformationoccurredintherangeof20-30m,withthemax
                 imumintervaldisplacementdetectedbythemultipointdisplacementmetersexceeding80mm.Regarding
                 tothisproblem ,thedeformationcharacteristicsofsloperockmassarecomprehensivelyanalyzedfromthe
                 aspectsofspatiotemporalvariationlaw ,eigenvaluestatisticsanddisplacementrate,basedonthemonito
                 ringdataofthemultipointdisplacementmeters.Theresultsshowthatblastingexcavationandstructural
                 planesarethemainfactorsleadingtolargedeformationoftheslope;themaindeformationzoneofthe
                 slopeisconsistentwiththepositionofthestructuralplanesoffz39 ,L920andfz15,sotheslopedeforma
                 tionismainlyaffectedbytheabovestructuralplanes.Comparedwithothersimilarprojects ,thecurrent
                 slopedisplacementmagnitudeisbasicallyinthenormalrange.Withthegradualimplementationofrein
                 forcementmeasures ,theslopehasbasicallystabilized,soattentionshouldbepaidtothedeformationof
                 slopetoeinarea Ⅰ andⅣ,andthesupportanddrainagemeasuresshouldbestrengthened.
                 Keywords:slopedeformation;rockmassstructuralplane;constructionperiod;multipointdisplace
                 mentmeter ;HuangjinxiaWaterConservancyProject


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