The finite element method is applied to solve the 3d seepage field of layeredfoundation of Jiangtanghu sluice.
运用有限元，对姜唐湖进洪闸成层地基三维渗流场进行求解，得出闸基渗流场等水头线的分布规律。
2
And the effects of soil parameters of the double-layeredfoundation on the pile behavior are investigated with the derived solutions.
并利用所得解分析了双层地基土性参数对桩基性状的影响。
3
The relationship of composite foundation and ground treatment, composite foundation and double-layeredfoundation, composite foundation and composite pile foundation were studied.