Kanako-1D를 이용한 토석류재해지역의 수치모의

초록

Recently because of severe rain storm arising from the climate change, frequency of debris flow is increasing. Occurrence of debris flow causes huge losses of life and property in downstream areas. Also sediment formed by occurrence of debris flow is supplied into mountainous river, which causes the secondary damage such as reduction of cross-sectional area or blocking access routes to the disaster areas. Debris flow is attracting much interest of specialists considering the development process for the use of mountainous area, safety of mountainous road and inflow of earth and sand flowing into the river channel. Therefore debris flow researchers in the world are conducting study in many ways for analysis of debris flow hazard areas and damage reduction. But they have a lot of difficulty studying because of complexity and diversity of debris flow. In this study, Kanako-1D was used among debris flow numerical analysis softwares. And Kanako-1D can reflect erosion and sedimentation and has advantage of convenience for simulation. By using Kanako-1D, the program was applied to the debris flow areas in Jecheon and was compared with debris flow production through field investigation. According to the result, the amount simulated by Kanako-1D was 6,953m3, 71% of debris flow discharge gained by using LiDAR and 1:5000 numerical map.

키워드