A new method of close drainage hole simulation in the seepage control analysis

Based on the point set base solutions, the approximate solution formula of single drainage hole in the finite element has been ascertained by the superposition principle. Then using the superposition principle of well group, the analytic theory of single drainage hole is spread to multiple drainage holes in the element. More important, the change of the close drainage hole seepage control scheme (its position or axis change) can remain the original finite element network by only changing few control parameters of drainage hole. Therefore such method is more suitable to the optimal analysis and study on seepage control.