Analysis on the Characteristics of the Landslide in Nasamri (II) -- With a Special Reference on Cause of Landslide -

摘要

This study was carried out to analyze rainfall events, Reo-topographical characteristics at the landsliding area of about 3.1ha in Nasamri, Juchonmyeon, Gimhaesi, Gyeongsangnam-do. There were many cracks and soil burying. Most rainfall was infiltrated from the surface layer to the subsurface layer. We found that subsurface water in the area was sprang out to the surface areas in the bottom of landsliding area. Heavily continued rainfall above 350mm which led to rapid shift of soil mass was one of the dominant factors in this landslide. We conclude that the occurrence of landslide was closely related to geo-topographical characteristics, hydrological conditions and rainfall mass events.