A seepage finite element program was developed based on seepage FEM and imaginary elements fixed mesh method.
基于渗流有限元理论和虚单元固定网格法，编制了堤内压盖渗流有限元程序。
Finally, to reduce the analytical error of finite element, with the error estimating method for FEM, the error of new mesh elements are estimated and the elements with large error are refined.
最后，采用有限元误差估计方法对新网格单元的计算误差进行估计，对误差较大的单元进行加密，减少了有限元分析误差。
Finally, to reduce the analytical error of finite element, with the error estimating method for FEM, the error of new mesh elements are estimated and the elements with large error are refined.
最后，采用有限元误差估计方法对新网格单元的计算误差进行估计，对误差较大的单元进行加密，减少了有限元分析误差。
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