2023年4月收稿日期:2022—11—07作者简介:王强(1988—),男,高级工程师,主要从事水利水电工程建设工作。摘要:基于黄南水库堆石坝混凝土面板工程,通过统计分析浇筑过程面板裂缝分布特征,在此基础上从混凝土面板施工工艺、周边施工环境和坝体沉降变形等多角度深入分析与面板裂缝产生的关联度。结果表明,周边气温环境是研究区面板裂缝产生的主要原因,面板裂缝的长度、条数与混凝土内部最高温度呈正相关性。并且Ⅱ序块紧跟Ⅰ序块施工,其两侧受到Ⅰ序块约束,散热条件较差,使得Ⅱ序块混凝土内部无法快速散热,加剧了面板裂缝产生。关键词:混凝土面板;面板裂缝;分布特征;成因分析;气温环境中图分类号:TV698.1+1文献标识码:A文章编号:1004-7328(2023)04-0090-06DOI:10.3969/j.issn.1004-7328.2023.04.024黄南水库堆石坝混凝土面板裂缝成因分析王强,冉东虎(中国电建集团华东勘测设计研究院,浙江杭州310014)CauseAnalysisofCracksinConcreteFaceofRockfillDaminHuangnanReservoirWANGQiang,RANDong-hu(PowerchinaHuadongEngineeringCo.Ltd.,Hangzhou310014,China)Abstract:BasedontheconcretefaceplateprojectofrockfilldamofHuangnanReservoir,thispaperanalyzesthedistributioncharacteristicsofthefaceplatecracksintheprocessofpouringthroughstatistics.Onthisbasis,thecorrelationdegreebetweentheconcretefaceplatecracksandthedamisanalyzedfrommultipleperspectivessuchastheconstructiontechnologyoftheconcretefaceplate,thesurroundingconstructionenvironmentandthesettlementdeformationofthedambody.Theresultsshowthatthesurroundingtemperatureenvironmentisthemaincauseofpanelcracksinthestudyarea.Thelengthandnumberofcracksarepositivelycorrelatedwiththemaximuminternaltemperatureofconcrete.Inaddition,theconstructionofsequenceblockⅡfollowssequenceblockⅠclosely.BothsidesofsequenceblockⅡareconstrainedbysequenceblockⅠandtheheatdissipationconditionispoor.Asaresult,theinternalheatdissipationofsequenceblockⅡisunabletobefast,whichaggravatesthegenerationofpanelcracks.Keywords:concretefaceplate;panelcracks;distributioncharacteristics;causeanalysis;temperatureenvironment我国自1985年首次引进面板堆石坝以来,面板堆石坝技术快速发展,走出一条由引进...