摘要
为了分析大坝和坝基抗渗性能的好坏，采用典型小概率法拟定大坝渗漏量安全监控指标。通过比较实测值与指标值来反映坝体和坝基抗渗性能的好坏。以某混凝土宽缝重力坝为例进行坝基总渗漏量观测，选取1965-2005年共41个样本进行统计分析，结果表明本文方法可以有效地反映坝基抗渗性能的好坏。
The safety-monitoring index of seepage was determined by use of the typical low probability method, and the impermeability of the dam body and its foundation was analyzed through comparison of measured data with the index value. With a slotted gravity dam taken as an example, the total seepage quantity of the dam foundation was observed. Statistical analysis of 41 samples chosen from 1965 to 2005 shows that the method proposed in this paper can effectively reflect the impermeability of dana foundations.
出处
《水利水电科技进展》
CSCD
北大核心
2008年第2期56-58,共3页
Advances in Science and Technology of Water Resources
基金
国家自然科学基金项目(50539030-1-3)
“973”计划项目(2002CB412707)
国家科技支撑计划项目(2006BAC14B03)
国家自然科学基金雅砻江水电开发联合研究基金重点项目(50539110)
中国水电工程顾问集团公司科技项目(CHC-KJ-2007-02)
关键词
大坝渗漏量
安全监控指标
典型小概率法
dam seepage
safety-monltoring index
typical low probability method
