The article analyzes how soil slopes behave under different levels of rainfall. By studying water movement in the soil, researchers found that heavy rainfall can weaken slopes by increasing water pressure underground. This can lead to landslides as the soil becomes less stable. The study shows that the duration and intensity of rainfall directly impact slope stability, with shorter, more intense rainfall events causing the most significant changes in stability. Taking into account the soil's ability to retain water, the safety factor of slopes can decrease rapidly during heavy rainfall, highlighting the importance of considering soil properties in slope stability assessments.