To avoid the disadvantage of the previous fixed mesh method (FEM) for free surface(FS) seepage, a new method: called element\|free method(EFM) for seepage is presented.

• 针对有自由面渗流分析中的有限元固定网格法存在的不足,利用无单元法中积分网格和结点相互独立的优点,提出了有自由面渗流的无单元法。