Abstract: The leakage is a comprehensive reflection of face rockfill dam operation state, and leakage evaluation is an important issue related to engineering safety. For 37 domestic and abroad face rockfill dams completed during 1971~2009, more than 78 m in height, engineering analogy of leakage was conducted by homogenizing the face area. The criteria could be roughly drew up as follow: the face average leakage within 12×10^-4 L/(s·m²) indicates a small amount of leakage; (12~24)×10^-4 L/(s·m²) indicates moderate amount of leakage; and more than 24×10^-4 L/(s·m²) indicates that the amount of leakage is too large. The statistical criterion could be a reference for similar dams.

Key words: face rockfill dam, leakage, engineering analogy, quantitative evaluation

摘要： 面板坝的渗漏量是面板坝运行性态的综合反映，渗漏量评判是涉及工程安全的重要问题。对国内外1971～2009年完建、坝高为78～233 m的37座面板坝按面板面积均化渗漏量进行工程类比后，大致拟定出以下判据：面板均化渗漏量在12 L/（s·万m²）以内时，表明渗漏量小；在12～24 L/（s·万m²）之间时，表明渗漏量较小；大于24 L/（s·万m²）时，表明渗漏量偏大。这些从代表性面板坝工程实际运行状态统计分析得出的判据，可供类似面板坝工程渗漏评判时参考。

关键词: 面板坝, 渗漏, 工程类比, 量化评判