Aiming at the defects of FEM method such as iso-parametrical mesh, the triangular (tetrahedral) mesh and the meshless, the theory of TFEM was introduced. Around the concept of applying the advantage ideas of meshless methods to FEM and reproducing the interpolation of FEM, it was applied to geo-engineering projects. Some engineering examples showed that this method possesses high accuracy and continuous stress on triangular (tetrahedral) mesh.
