二滩水电站水垫塘抗冲磨修补研究.docx

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水利水电技术第44卷2013年第9期

二滩水电站水垫塘抗冲磨修补研究

万雄卫1,徐盈1,肖皓，王锋辉2,闵四海2,卢邦荣2

(1.武汉武大巨成加固实业有限公司，湖北武汉430077;2.二滩水力发电厂，四川攀枝花617000)

摘要：通过二滩水电站水垫塘底板和护坦多年的抗冲磨修补工程实践，对环氧砂浆修补材料的抗冲击磨蚀性能和施工工艺等进行了持续改进，研制出一种低放热、低热变形温度、耐冲蚀、抗磨蚀的JME改性环氧砂浆抗冲磨修补材料。这有效地满足了二滩水垫塘高温环境对施工的要求并解决了高水头、高流速环境下水垫塘底板、护坦的薄层破损修补问题，对维护水电站的安全运营有重要的影响。

关键词：改性环氧砂浆；高水头；高流速；抗冲磨强度；抗冲击强度；水垫塘；二滩水电站中图分类号：TV653(271)文献标识码：B文章编号：1000-0860(2013)09-0096-04

StudyonerosionandabrasionresistantrepairingforcushionpoolofErtanHydropowerStation

WANXiongwei1,XUYing,XIAOHao1,WANGFenghui2,MINSihai2,LUBangrong2

(1.WuhanWudajuchengStrengtheningIndustrialCo.,Ltd.,Wuhan430077,Hubei,China;

2.ErtanHydropowerPlant,Panzhihua617000,Sichuan,China)

Abstract:ThroughtheengineeringpracticeoferosionandabrasionresistantrepairingmadeonthebotomslabandapronofthecushionpoolforErtanHydropowerStation,theerosion-abrasionresistanceandtheconstructiontechnologyoftheepoxyresinmortarrepairingmaterialarecontinuouslyimproved;forwhichakindofJMEmodifiedepoxyresinmortarwiththecharacteris-ticsoflowerthermalrelease,lowerthermaldeformationtemperature,anti-erosionandanti-abrasionisdeveloped.Withthismaterial,notonlytherequirementfromtheenvironmentofhightemperatureupontheconstructioniseffectivelysatisfied,buttheproblemsfromtherepairingmadeonthethin-layerdamageofthebottomslabandapronofthecushionpoolundertheconditionofhighflowvelocityarealsosolved;whichhasanimportanteffectonkeepingthesafetyoftheoperationofthehydropow-erstation.

Keywords:modifiedepoxyresinmortar;highhead;highflowvelocity;strengthofanti-erosion;impactstrength;cushionpool;ErtanHydropowerStation

1引言

二滩水电站位于四川省西部攀枝花，在雅砻江下游河段上，电站装机容量为330万kW,水库容量