Rainfall intensity and duration crucial for stability of granite soil slopes.
Rainfall characteristics can affect the stability of granite soil slopes. By using computer simulations, researchers found that different types, intensities, and durations of rainfall can impact the safety of slopes. Pore water pressure, slip surface, and safety factor change during and after rainfall, with the minimum safety factor sometimes occurring hours or days after the rain stops. These findings match real-life landslide cases caused by rainfall, showing that rainfall plays a crucial role in slope stability.