⛰️ Rainfall Landslide Lab: Green-Ampt Wetting Front and Infinite-Slope Safety Factor

A Blender-modelled hillside cross-section: rain infiltrates a soil slab by the Green-Ampt wetting front, suction strength fades, water mounds on the slip plane and the infinite-slope safety factor falls to 1. After failure a Newmark rigid block runs out over the plain towards a house. Includes a rain-intensity sweep and independent numerical checks.