|
| | Abstract | | When pore crashes under the quasi-static compression, the pore-water pressure increases and the squeezed-out generates new crack. The question to be solved is how much pore-water pressure increases by pore crash. We derived the relation of the porosity change and the pore-water pressure change by the stress-strain relations, which are newly derived in the water-saturated porous media. The relation is controlled by the pore-pressure partition coefficient beta as well as the framework strength parameter kappa. The coefficient beta increases with the applied total pressure in the yielding deformation range, where the pore crash proceeds. |
|
|
|
| |
|