KRC Develops Numerical Model to Predict Landslide Damage
[Sejong=Asia Economy Reporter Kim Hyunjung] A numerical model capable of precisely predicting the damage range of debris flows during landslides has been developed.
Korea Rural Community Corporation announced on the 15th that it, together with the Rural Research Institute and the Department of Civil and Environmental Engineering at Sejong University, completed verification of a numerical model developed from 2019 to 2020 that identifies the physical characteristics of debris flow behavior for landslide prediction.
Debris flow refers to the rapid downhill movement of a mixture of soil, stones, rocks, and trees combined with water caused by landslides triggered by heavy rainfall. As climate change accelerates, damages are occurring frequently worldwide, increasing the need for precise prediction.
From 2010 to 2018, a total damage area of 2017 hectares occurred, with restoration costs totaling 412.8 billion KRW (an average of 45.9 billion KRW per year). In 2011, the Umyeonsan landslide resulted in 18 fatalities. Despite this, most studies conducted so far have been applied research based on basic research results from overseas, making it urgent to accumulate technology related to debris flow characteristics suited to domestic conditions.
The Corporation expects that this research, which secured reliable raw data from debris flow experiments and developed a precise numerical model for damage range prediction, will be widely utilized in the safety management of steep slopes in the future.
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The Corporation plans to upload the research results to the Grid System, an experimental facility sharing system of the Korea Agency for Infrastructure Technology Advancement, in the second half of 2021, making it available to all researchers and technicians in related fields. The results obtained using the experimental techniques held can be used as basic data for research in related fields, and domestic technology related to debris flows is expected to improve.
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