✓ There are some addititional precision：
— Water （represented by particles）should be modelled as Newtonian fluid （weakly compressible or incompressible： to be precised）
— Soil （represented by particles）should be modelled as an elastic perfectly plastic material satisfying either the Drucker-Prager yield criterion
— The soil water interaction should satisfied the Darcy the law （with a viscous drag force）and the pore water pressure.
— Boundary conditions ：Either the repulsive force boundary or the ghost particles boundary can be used（please precise which kind of boundary you used）
— Expected Results ：the simulation should allow to obtain the
（2）Temporal and spatial evolution （see example below）
（3）strain distribution（see example below）
（4） soil pressure distribution in the soil（see example below）
（5）pore water pressure.
✓ The work to be done.
1）The above described simulation should be carry out for the saturated （soil particles mixed with water particles） and unsaturated（soil particles only）cases.
2）Besides a precise step by step （detailed ）tutorial most be carry out （so that I can redo the work by myself...）
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