Mechanism of Deep-seated Landslide: A Case Study of the Kaoping River in Southern Taiwan
Extreme rainfall brought by Typhoon Morakot in August, 2009 caused many large-scale landslides and debris flows in the mountain area of southern Taiwan. The deep-seated landslide in the Siaolin Village, Jiasian Township, Kaohsiung County was the most serious and caused about 600 casualties. However, there is no complete, detailed study on such largescale deep-seated landslides which might cause severe disasters. Therefore, in this research, the Kaoping river basin in southern Taiwan was chosen as the subject of this study, and a total of 127 locations of deep-seated landsides and potential deep-seated landslide cases were selected. From the field investigation and analysis of terrain curvatures, we discovered that creeps occur in the local terrain of deep-seated landslides due to the long-term effect of gravity, and most terrain profiles of landslides are obviously convex or concave, suggesting that the landslide slope exhibits progressive deformation and even failure.
deep-seated landslide site investigation weak planes creep terrain curvatures
Xuan Jiang Tien-Chien Chen
Department of Soil and Water Conservation, Pingtung University of Science and Technology 91201 Pingt Department of Soil and Water Conservation Pingtung University of Science and Technology 91201 Pingtu
国际会议
三峡
英文
3274-3277
2012-05-18（万方平台首次上网日期，不代表论文的发表时间）