2011 Volume 67 Issue 2 Pages I_731-I_735
Deformation analyses of rubble mound as an elastoplastic body have been already carried out, however, in these conventional analyses, large deformation to tilt a caisson on a mound cannot be reproduced. On the other hand, the MPS method used in this study can be applied for such a large deformation, however, in a conventional elastoplastic MPS method, an influence of pore water in a mound cannot be taken into account. Therefore, in this study, an improved elastoplastic MPS method based on effective stress model is developed, and a few fundamental examination of its validity are executed.