2017 年 23 巻 p. 429-434
The method of risk evaluation of potential deep-seated landslides which focused on deformations of landslide is proposed. On the other hand, the method which focused on hydrological and water quality characteristics of landslide is not proposed. For this reason, hydrological and water quality characteristics show the risk of potential deep-seated landslides is incompletely understood. This study revealed the relations between the risk of potential deep-seated landslides which focused on deformations of landslide and hydrological and water quality characteristics of spring water from landslide. In conclusion, spring water exists at the landslide which has high potential of deep-seated landslide or the rate of deformation more than 5%. And the electric conductivity of spring water when increase, the risk focused on deformations of landslide increase too. On the other hand, the rate of deformation decreases.
