碾压混凝土重力坝的渗流特性

Seepage Characteristics of RCC Gravity Dams

根据室内外碾压混凝土的渗流试验结果，系统地分析了碾压混凝土及碾压混凝土坝的渗流特性，导出了有关碾压混土坝渗流分析的理论算式及有限元分析模型．结合三峡工程的具体情况，指出碾压混凝土坝设计和施工的关键是保证防渗及排水等渗控措施的效果及稳定性。

Based on the experimental results, seepage characteristics of RCC dams are analyzed systematically. A 3 D FEM model is developed for the simulation of seepage in RCC dams. Several cases of seepage control of dam section No.13 in the Three Gorges Project are calculated and the results are interpreted in detail. It is important to ensure the effectiveness of seepage control. Under the condition that the stability and strength are satisfied the treatment requirement of RCC bedding joints can be reduced.