Characteristics of landslides occurring below warning criteria for the last ten years in Korea

초록

Landslide damage caused by localized heavy rainfall and storms has been frequently reported in many areas throughout the world. As urban life and infrastructures have increasingly expanded into mountainous areas, losses for human and property from landslides have become common occurrences. In this study, the characteristics of rainfall-induced landslides are investigated based on 455 landslides database set. Thirty-three factors such as rainfall, soil, forest, geological and topographic information that may affect landslide occurrences were included in the database. The rainfall threshold for landslide occurrence of Korea Forest Service that is the most widely used in domestic area is employed as landslide-inducing criteria in order to detect erratic occurrences of landslide. Finally relations between landslides occurred below rainfall thresholds and specific factors affecting landslide occurrences were examined to understand characteristics of such landslide occurrences.

키워드