混凝土面板堆石坝渗流特性分析研究

Analysis and Research on Seepage Characteristics of Concrete Face Rockfill Dam

笔者采用渗流分析理论和有限元方法对某混凝土面板堆石坝进行渗流特性计算和敏感性分析。结果表明:大坝渗流压力、总水头、水力梯度和渗流速度计算结果符合一般规律,渗流量计算结果与测量值接近;渗流量对面板和帷幕均较为敏感,坝基渗流压力则受帷幕渗透系数影响显著。该研究成果可为类似工程计算分析提供参考借鉴。

In this paper,the seepage analysis theory and finite element method are used to calculate the seepage characteristics and sensitivity analysis of a concrete face rockfill dam.The results show that the calculation results of seepage pressure,total head,hydraulic gradient and seepage velocity of the dam conform to the general law,and the calculation results of seepage flow are close to the measured values.The seepage flow is sensitive to both the panel and the curtain,and the seepage pressure of the dam foundation is significantly affected by the curtain permeability coefficient.The research results can provide reference for similar engineering calculation and analysis.