임도구조 요인에 따른 절토비탈면 안정구조물의 특성

초록

Forest roads failure is one of the most common problems caused by heavy rainfalls. This study investigated the characteristics on stabilization measures installed for cutting slopes failure of forest road resulted from heavy rainfalls. Three primary factors (slope length, slope gradient, soil type) affecting cutting slope failure were considered and stabilization measures were classified into two types (A type: wooden fence, vegetation sandbag, stone masonry; B type: wire cylinder, gabion, concrete retaining wall) through discriminant analysis based on their capacity of resistance to slope failure. Results showed that A type was mainly installed in such conditions as cut slope ＜8 m, cut slope gradient 30-40˚ and soil type with soil while B type occurred in locational conditions as cut slope length ＞8 m, cut slope gradient ＜30˚ and＞40˚, and soil type of gravelly soil and rock.

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