土工膜防渗技术在泰安抽水蓄能电站上水库的应用  

Application of geomembrane in seepage control technique in upper reservoir of Tai'an pumped storage power station

作　　者：何世海[1] 吴毅谨 李洪林 

机构地区：[1]中国水电顾问集团华东勘测设计研究院,浙江杭州310014 [2]中国水利水电建设工程咨询公司,北京100011 [3]中国水利水电第十二工程局有限公司,浙江杭州310004

出　　处：《水利水电科技进展》2009年第6期78-82,共5页Advances in Science and Technology of Water Resources

摘　　要：介绍了泰安抽水蓄能电站上水库HDPE土工膜防渗方案的设计过程和施工方法，包括防渗层材料的选择，防渗层、下支持层、上保护层设计，土工膜周边连接方案，土工膜施工焊接工艺和无损质量检测方法等方面取得的成果。实践表明，土工膜防渗技术在泰安抽水蓄能电站的应用是成功的，水库已安全运行4年，库水外渗水量很小，库底最大总渗漏量仅为3．89L／s，上水库总渗漏量仅为总库容的万分之三，防渗效果很好，节省投资3200万元，缩短施工工期4—6个月，为我国大型水电工程土工膜防渗技术的应用积累了经验。The design process and construction method of the geomembrane HDPE for seepage control of the upper reservoir of the Tai＇an pumped storage power station are introduced, including the material choices; the design of the seepage resistance layer, underlying supportive layer and overlying protective layer; the peripheral connection of the geomembrane; and the non-destructive quality detection method. The application of geomembrane in the seepage control technique for the Tai＇an pumped storage power station has been successful. The reservoir has already operated safely for 4 years. The seepage volume is very small, and the maximal seepage volume of the reservoir bottom is only 3.89 L/s. The antl-seepage effect is satisfactory and the total seepage volume of the upper reservoir is only one ten-thousandth of the total storage capacity. The investment has been reduced by 32 million yuan and the construction time reduced by 4-6 months, providing a positive experience of application of geomembrane in seepage control for large hydropewer projects in China.

关 键 词：泰安抽水蓄能电站 水库 土工膜 防渗层设计 

分 类 号：TV543[水利工程—水利水电工程]