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某抽水蓄能电站上水库库底土工膜防渗设计 被引量:9

Design of seepage control of upper reservior bottom of a pumped-storage power station by using geomembrane
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摘要 某抽水蓄能电站上水库库底填渣高度达120余米,水库蓄水后其沉降变形及局部区域的不均匀变形问题较为突出。为较好适应库底变形,保证水库的防渗性能,库底采用HDPE土工膜防渗,开展了三维有限元计算分析。对于局部拉应变较大区域,采取设置增模区等工程措施,其经验可供类似工程参考。 A pumped-storage power station has high filling of the upper reservior bottom 120 metres in thickness, and the settlement deformation and local uneven deformation are obvious after water storage. HDPE geomenmbrane is used to get better adaption of the defomation of the reservior bottom to ensure the seepage prevention function. In additon, 3D finite element method is taken to analyze the above problems. For the are as with large local tension strain, engineering measures such as increasing modulus region are adopted. It may provide reference for similar projects.
出处 《岩土工程学报》 EI CAS CSCD 北大核心 2016年第S1期10-14,共5页 Chinese Journal of Geotechnical Engineering
关键词 填渣 变形 土工膜 拉应变 增模区 filling deformation geomenmbrane tension strain increasing modulus region
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