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1、Seediscussions,stats,andauthorprofilesforthispublicationat:https://www.researchgate.net/publication/308966247SimulationoftemperaturefieldofLongkaikouRCCdambasedonmeasureddataData·October2016CITATIONSREADS0695authors,including:XiaorongXuJianwenPanTsinghuaUnivers
2、ityTsinghuaUniversity8PUBLICATIONS5CITATIONS24PUBLICATIONS270CITATIONSSEEPROFILESEEPROFILEJintingWangJianYangTsinghuaUniversityChinaHuanengGroupCleanEnergyResearchInstitute70PUBLICATIONS639CITATIONS10PUBLICATIONS96CITATIONSSEEPROFILESEEPROFILEAllcontentfollowi
3、ngthispagewasuploadedbyXiaorongXuon10October2016.Theuserhasrequestedenhancementofthedownloadedfile.水力发电学报2016年第35卷第1期:110-117JournalofHydroelectricEngineering,2016,Vol.35,No.1:110-117基于实测资料的龙开口碾压混凝土重力坝温度仿真分析徐小蓉1,潘坚文1,王进廷1,杨剑2,卢吉3(1.清华大学水沙科学与水利水电工程国家重点实验室,北京100
4、084;2.华能集团清洁能源技术研究院有限公司,北京102209;3.华能澜沧江水电股份有限公司,昆明650214)摘要:基于温度实测资料,采用有限单元法按照碾压混凝土坝分层浇筑的施工特点,对龙开口最高挡水坝段的全过程温度场进行仿真模拟。计算考虑了混凝土的水化反应、冷却通水、环境气温、库水位等对坝体温度的影响。仿真结果与实测温度变化过程吻合良好。仿真结果表明,浇筑过程中EL1230-1260m高程坝体内部形成了较大片“高温区”,长时间保持28~30℃;但随着与外界空气、库水热交换散热,高温范围逐渐缩小,预测运行十年
5、后坝体温度稳定在20~22℃;另外,坝址干热河谷气候和冷却通水对坝体温度分布有着显著的影响。关键词:碾压混凝土坝;有限元;温度仿真;实测资料中图分类号:TV642.2文献标志码:ADOI:10.11660/slfdxb.20160114SimulationoftemperaturefieldofLongkaikouRCCdambasedonmeasureddataXUXiaorong1,PANJianwen1,WANGJinting1,YANGJian2,LUJi3(1.StateKeyLaboratoryofHy
6、droscienceandEngineering,TsinghuaUniversity,Beijing100084;2.HuanengCleanEnergyResearchInstitute,Beijing,102209;3.HuanengLancangjiangHydroelectricCorporationLimited,Kunming650214)Abstract:Thispaperpresentsathree-dimensionalfiniteelementmodelforsimulationofthete
7、mperaturefieldanditsvariationduringtheconstructionofLongkaikouRCCdam,withafullconsiderationofmajorfactors:hydrationheatofcement,coolingeffectofwaterpipes,variableambienttemperature,andreservoirlevel.Thesimulationresultsdemonstratethatthecalculationsoftemperatu
8、reareingoodagreementwithin-situmeasurements.Accordingtoourprediction,alargezoneofhightemperature28-30CoccursinthedamlayerbetweenelevationsEL1230-1260manditwillgraduallyshrinkafter