榨房沟水库大坝防渗设计研究
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摘要
榨房沟水库经过30多年运行,工程存在损毁及严重渗漏问题。为确保下游灌溉安全、继续发挥水库的经济效益,需对水库大坝进行除险加固防渗处理。在对原建工程现状分析的基础上,提出大坝加固措施,通过比选确定"上游坝坡土工膜+基础接触灌浆"作为大坝防渗设计方案。同时,采用有限元二维稳定渗流计算方法,计算并分析大坝除险加固设计的防渗效果。经试验验证,该设计方案防渗效果显著,可为类似水库防渗设计提供借鉴和参考。
After more than 30 years of operation,the project of Zhafanggou reservoir has serious leakage problems. In order to ensure downstream security and make the reservoir bring economic benefit as before,dam reinforcement and seepage control would be carried out. Based on the analysis of the current status of the original construction,the reinforcement measures of the dam were put forward. The "upstream dam slope geomembrane + foundation contact grouting"was selected as the dam seepage prevention scheme. Simultaneously,finite element method was utilized for calculating and analyzing the seepage control effect. By practice test,the design of seepage control effect is remarkable,which can provide reference for similar reservoir reinforcement design.
After more than 30 years of operation,the project of Zhafanggou reservoir has serious leakage problems. In order to ensure downstream security and make the reservoir bring economic benefit as before,dam reinforcement and seepage control would be carried out. Based on the analysis of the current status of the original construction,the reinforcement measures of the dam were put forward. The "upstream dam slope geomembrane + foundation contact grouting"was selected as the dam seepage prevention scheme. Simultaneously,finite element method was utilized for calculating and analyzing the seepage control effect. By practice test,the design of seepage control effect is remarkable,which can provide reference for similar reservoir reinforcement design.
引文
[1]陈宏臻,刘长武,王建有.槐树嘴水库大坝防渗措施及其防渗效果分析[J].水利建设与管理,2016(1):56-59.
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[4]李志丽,程显琼.浅谈土石坝渗漏原因及处理措施[J].城市建设理论研究(电子版),2015,5(3):38-40.
[5]李立刚.西霞院工程土工膜防渗技术的进一步探讨[J].人民黄河,2012,34(11):111-112.
[6]陈发义,黄海玲,高世荣.土石坝应用土工膜防渗设计的几个问题[J].水利与建筑工程学报,1996(1):5-8.
[7]程从稳,马莹.大板水库大坝防渗加固措施及其效果评价[J].水电能源科学,2011,29(4):86-88.
[8]郭晓军.十三陵水库防渗效果分析[J].水利水电技术,2013,44(11):101-104.
[2]周红.大型输配水工程水源保护措施的研究与应用[J].水资源开发与管理,2015(2):38-40.
[3]韩文娟.库水位降落时均质土石坝非稳定渗流分析[D].扬州:扬州大学,2006.
[4]李志丽,程显琼.浅谈土石坝渗漏原因及处理措施[J].城市建设理论研究(电子版),2015,5(3):38-40.
[5]李立刚.西霞院工程土工膜防渗技术的进一步探讨[J].人民黄河,2012,34(11):111-112.
[6]陈发义,黄海玲,高世荣.土石坝应用土工膜防渗设计的几个问题[J].水利与建筑工程学报,1996(1):5-8.
[7]程从稳,马莹.大板水库大坝防渗加固措施及其效果评价[J].水电能源科学,2011,29(4):86-88.
[8]郭晓军.十三陵水库防渗效果分析[J].水利水电技术,2013,44(11):101-104.