| Before the collapse-type landslide occurred, it is known that some small collapses occurre at the toe area of the landslide. For example, the Higashi-yokoyama landslide is one of those case. We are thinking that those small collapses will be one of the exciting cause. So we tried to grasp the influence quantity about the small collapse at the toe area of the landslide by using two-dimensional and three-dimensional slope stability analysis. Results showed that small collapse at the toe of landslide will be one of the cause of the collapse-type landslide. |
