结合三维算例分析技术的混凝土面板堆石坝面板防渗效果研究

Study on Seepage Control Effect of Concrete Face Rockfill Dam Combined with Three-Dimensional Example Analysis Technology

针对混凝土面板堆石坝的面板防渗效果,提出一种防渗效果分析方法,并对堆石坝防渗效果进行分析。首先分析混凝土面板堆石坝面板的开裂因素,结合水压力并利用三维算例建模,实现渗流数值的模拟。结果表明,在防渗墙深30m时,水平铺盖长度上升至350m时的渗流量下降至0.6×10^(-5) m^(3)/s;在渗透系数为1×10^(-7) m/s时,渗径延长为295m,表明研究方法能够有效进行面板防渗效果分析。

The anti-seepage effect of concrete face rockfill dams has always been a focus of attention in the field of hydraulic engineering.The study has proposed a method for analyzing the anti-seepage effect of rockfill dams.During the process,the cracking factors of the concrete face rockfill dam face were analyzed,and then combined with water pressure,three-dimensional numerical modeling was used to simulate seepage.The results indicate that when the depth of the anti-seepage wall is 30m,the research method analysis shows that the seepage flow rate decreases to 0.6×10^(-5) m^(3)/s when the length of the horizontal blanket increases to 350m;at a permeability coefficient of 1×10^(-7) m/s,the analysis shows that the seepage diameter is extended by 295m.This indicates that the research method can effectively analyze the anti-seepage effect of panels.