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Hazard Prevention Using Multi-Level Debris Flow Barriers  

Baek, Yong (한국건설기술연구원 지반연구실)
Choi, Youngchul (지오브르그 코리아)
Kwon, Oil (한국건설기술연구원 지반연구실)
Choi, Seungil (지오브르그 코리아)
Publication Information
Journal of the Korean GEO-environmental Society / v.11, no.8, 2010 , pp. 15-23 More about this Journal
Abstract
Debris flows are a natural hazard which looks like a combination of flood, land and rock slide. Large rainfall in July 2006 produced several large scale debris flows and many small debris flows that resulted in loss of life and considerable property and railway damage, as was widely reported in the national media. The hazard "debris flow" is still insufficiently researched. Furthermore debris flows are very hard to predict. Flexible Ring net barriers are multi-functional mitigation devices commonly applied to rock fall or floating wood protection in floods, snow avalanches and also mud flows or granular debris flows, if properly dimensioned for the process or processes for which they are intended. Overtopping of the barriers by debris flows and sediment transport is possible, supporting the design concept that a series of barriers may be used to stop volumes of debris larger than are possible using only one barrier. The future for these barrier concepts looks promising because these barriers represent the state of art for such applications and are superior to many other available options.
Keywords
Debris flow; Natural hazard; Multi-level debris flow barriers; Sediment transport;
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