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Liquefaction Pore-Pressure Field (2D)

A 2D finite-difference cross-section of earthquake-induced liquefaction: an independently simulated pore-pressure field diffuses toward a free-face drainage boundary while a coupled sliding-block plan view opens a real fan of tension cracks.

Climate, Ecology & Environment2DAdvanced60 FPS📱 Mobile-adapted⇄ 3D version

Details

CategoryClimate, Ecology & Environment

RenderingCanvas 2D

DifficultyAdvanced

Target FPS60

ControlsSliders set peak ground acceleration, sand relative density, ground slope toward the free face, and liquefiable layer thickness; a Start/Stop Shaking toggle drives the 2D pore-pressure field's cyclic generation and diffusion, and a Reset Field button clears both the field and accumulated displacement.

earthquakeliquefactionlateral spreadinggeotechnicalpore pressureslope stabilityfinite difference

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This 2D companion swaps the 3D scene's single global pore-pressure number for an independently simulated field: excess pore pressure is generated cell-by-cell across a lateral-distance × depth grid using the same Seed–Booker law, then diffuses toward the free face, which drains fastest. The resulting depth-averaged strength per column drives a sliding-block plan view underneath, so the fan of tension cracks you see widening toward the free face is a direct, numerically computed consequence of the field above it, not a cosmetic effect.

⚙ Under the hood

A 2D finite-difference cross-section of earthquake-induced liquefaction: an independently simulated pore-pressure field diffuses across a lateral-distance x depth grid toward a free-face drainage boundary, while a coupled sliding-block plan view underneath opens a real fan of tension cracks that widen toward the free face.

earthquakeliquefactionlateral spreadinggeotechnicalpore pressureslope stabilityfinite difference

2D · HTML5 Canvas 2D · 60 FPS target · runs fully client-side, no install