思林水电站非溢流坝段渗流分析.pdf

张彦辉,等:思林水电站非溢流坝段渗流分析 思林水电站非溢流坝段渗流分析 1 2 张彦辉 ,于海龙 (三峡大学土木水电学院,湖北宜昌 ; 1. 443002 中国水电基础工程局有限公司二公司,天津 ) 2. 301700 摘 要:思林水电站大坝是一坝高 117m的碾压混凝土重力坝,其坝身及地基渗径是筑坝中的关键技术问题。本文应用 平面有限元方法对坝体及坝基稳定渗流进行了计算分析 计算中碾压混凝土坝层面渗流按各向异性考虑。针对碾压混凝 , 土坝的筑坝方式,选用三种方案进行渗流分析计算,研究碾压混凝土坝渗透特性及其影响因素。经渗流分析计算,得出碾 压混凝土坝渗透特性主要取决于层面、上游防渗面板、防渗帷幕的渗透性。 关键词:有限元模型;非溢流坝段;渗流分析计算;防渗面板;层面;防渗帷幕;思林水电站 Title:Seepageanalysisofthenon-overflowsectionatSilinhydropowerstation//byZHANGYan-huiandYUHai-long//College ofCivilHydropowerEngineering,ThreeGorgesUniversity Abstract:TherollercompactedconcretegravitydamatSilinhydropowerstationisof117mhigh.Thekeytechnologicalproblem istheseepagepathatthedambodyandfoundation.Two-dimensionalfiniteelementmodelwasappliedtoanalysetheseepageof damanddamfoundation.Incalculation,itassumedthattheinterlayerseepagewasanisotropic.Accordingtoconstructionmethod ofrollercompactedconcretegravitydam,threecalculationschemeswereadoptedtoresearchonthecharacteristicofseepageand otherinfluencingfactors.Byseepageanalysis,conclusionwasgottenthattheseepagecharacteristicofrollercompactedconcrete damweredeterminedbytheseepagecharacteristicsoflayer,upstreamanti-seepagefaceplatepanelandseepageproofcurtain. Keywords:finiteelementmodelnon-overflowsectionofdam seepageanalysisandcalculationanti-seepagefaceplatepanel T T T T T ; layerseepageproofcurtainSilinhydropowerstation 中图分类号: 文献标识码: 文章编号: ( ) TV139.1 B 1671-1092200801-0041-04