8SUN Y, MIKI S. A study on coupling calculation of manifold method and saturated-unsaturated flow analysis[C]// In: Nenad Bicaniced. Proc. of the 4th I.nternational Cenference on Analysis of Discontinuous Deformation. Glasgow: University of Glasgow Press, 2001: 401 - 412.
9KARLSSON HIBBIT, SORENSEN Inc. Abaqus theory manual[R]. Pawtucket, American: ABAQUS inc., 2003.