[H-DS11] 湿潤変動帯の地質災害とその前兆

[HDS11-08] 京都市東山地域における斜面崩壊の潜在的危険度評価

*藤本 将光¹、戸田 堅一郎²、里深 好文¹ (1.立命館大学、2.長野県林業総合センター)

キーワード：斜面崩壊、土砂災害、湧水、CS立体図

To evaluate the potential risk of sediment disasters at Kiyomizu-dera Temple, we investigated the spatial distribution of springs based on a topographical analysis using a Curvature and Slope (CS) topographical map. The study area was divided into two areas, erosion and non-erosion, divided by a fault line. We observed springs with small slope collapse at numerous points in the erosion area. Our results suggest deep infiltration of groundwater in the non-erosion area, and exfiltration of groundwater in the erosion area, leading to the occurrence of slope collapse.