摘要
采用三维有限元数值计算方法和正则化的最小二乘优化方法，根据丰满大坝１９７２～１９８５年的坝体和坝基扬压力及漏水量观测数据，反演得到了坝体混凝土和坝基岩石的渗透系数．所采用的正则化方法解决了反问题的稳定性问题，而反演的唯一性问题通过填加补充条件（漏水量）得到解决．
Making uses of finite element method and regularizing the least square algorithm and basing on observed data of the permeability in Fengman Hydropower station from 1972 to 1985,the permeability coefficients of the concrete dams and dam ground have been computed.The stability problem has been solved by means of regularizing the least square algorithm.The uniqueness problem has been solved with adding leakage quantity.
出处
《武汉水利电力大学学报》
CSCD
1999年第1期1-3,67,共4页
Engineering Journal of Wuhan University
基金
国家自然科学基金
关键词
渗流
混凝土重力坝
反演
坝基
渗透系数
seepage
concrete gravity dam
inverse analysis
least square algorithm
