dam ›› 2015, Vol. 0 ›› Issue (6): 20-.

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Quantitative evaluation of leakage in face rockfill dam based on engineering analogy

XING Lin- sheng, ZHOU Jian- bo and ZHU Jin- jie   

  1. Large Dam Safety Supervision Center, National Energy Administration
  • Received:2014-11-03 Online:2015-12-08 Published:2015-12-08

面板坝渗漏工程类比量化评判

邢林生,周建波,朱锦杰   

  1. 国家能源局大坝安全监察中心,浙江 杭州,311122
  • 作者简介:邢林生(1942- ),男,江苏南京人,教授级高级工程师,主要从事大坝安全评价研究。

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