The simulator shows a cross-section of saturated sandy soil beneath a simple structure, letting users apply earthquake-like cyclic shaking and watch pore water pressure rise in real time as loosely packed grains attempt to rearrange, visually tracking the collapse of effective stress and the resulting sinking, tilting, or floating of objects at the surface.
Choose a soil condition, such as loose saturated sand, dense saturated sand, dry sand, or clay, set the shaking intensity and duration to represent a given earthquake magnitude, then run the simulation to watch pore pressure build up, grains rearrange, and surface structures respond, comparing outcomes across the different soil types side by side.
Soil type selector (loose sand, dense sand, dry sand, clay), water table depth slider, earthquake shaking intensity and duration controls, and a real-time pore water pressure and effective stress gauge paired with a play or reset button for the shaking sequence.
During the 1964 Niigata earthquake, some apartment buildings tilted so far that residents were photographed walking out through windows onto the ground, while the buildings' concrete frames remained essentially undamaged, because the entire failure happened in the liquefied soil beneath them rather than in the structures themselves.
The simulator shows a cross-section of saturated sandy soil beneath a simple structure, letting users apply earthquake-like cyclic shaking and watch pore water pressure rise in real time as loosely packed grains attempt to rearrange, visually tracking the collapse of effective stress and the resulting sinking, tilting, or floating of objects at the surface.
The simulator shows a cross-section of saturated sandy soil beneath a simple structure, letting users apply earthquake-like cyclic shaking and watch pore water pressure rise in real time as loosely packed grains attempt to rearrange, visually tracking the collapse of effective stress and the resulting sinking, tilting, or floating of objects at the surface.
Choose a soil condition, such as loose saturated sand, dense saturated sand, dry sand, or clay, set the shaking intensity and duration to represent a given earthquake magnitude, then run the simulation to watch pore pressure build up, grains rearrange, and surface structures respond, comparing outcomes across the different soil types side by side.
During the 1964 Niigata earthquake, some apartment buildings tilted so far that residents were photographed walking out through windows onto the ground, while the buildings' concrete frames remained essentially undamaged, because the entire failure happened in the liquefied soil beneath them rather than in the structures themselves.