Red bed slopes in southwest China can be unstable and prone to landslides and other hazards. A study in Yunnan Province looked at how rainfall and cracks affect slope stability. They created a model of a red bed slope and simulated rainfall patterns. They found that a slope with a crack is more vulnerable to water infiltration and pore water pressure buildup, which can lead to instability. The crack can shorten the path for water to seep into the slope, making it more susceptible to damage. This information is important for construction projects in areas with red bed slopes to prevent accidents and ensure safety.