In recent years, Sediment disasters have occurred frequently and cause serious damage. In particular, debris flows due to shallow landslide have occurred in highly weathered granite distribution areas and cause severe damage. In the case that weathered residual cores of the granite flows down, the damage may be increased.
In order to reduce future damage, it is important to extract slopes that are at risk of shallow landslide. When core stones are distributed on the surface of granite porphyry, the hydrological characteristics may be different from those of general slopes.
In this study, we conducted an artificial rainfall survey on the slope of the granite porphyry distribution area, and examined the rainwater infiltration process during rainfall. We conducted the survey on slopes with and without corestone distribution and compared the results.
