The natural hazard occurrences such as landslides, debris flows and natural/artificial slope failures were mainly caused by typhoons and extremely heavy rainfall. In order to reduce these natural hazards the efficient countermeasure methods were need to reduce the landslide and debris flow caused by variations of precipitation patterns. The positively countermeasure coping with the debris flow hazards should have to estimate mainly progress to construction of barrier facilities based on the predicted results of potential hazard types and its scales as well as establish and enforce actively maintenance of the barrier facilities. In addition we also emphasized the necessary to the types of barrier facilities and institution improvement in order to positively hazard reduction of debris flow.

• 최상호(한국시설안전공단 시설안전연구소 연구원, 공학박사) | Choi, Sang Ho Corresponding Author
• 장범수(한국시설안전공단 시설안전연구소 소장, 공학박사) | Chang, Buhm Soo