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Stability Evaluation of Cut Slope in Forest Roads by Forest Environment Factors  

Jeon, Kwon-Seok (Chungbu Experiment Station, Korea Forest Research Institute)
Oh, Sung-Yoon (Division of Forestry, Geochang-gun Office)
Ma, Ho-Seop (Division of Forest Science, Gyeongsang Nat'l Univ.)
Publication Information
Journal of the Korean Society of Environmental Restoration Technology / v.6, no.4, 2003 , pp. 43-51 More about this Journal
Abstract
The purpose of this study was evaluate to the stability on cut slope of forest roads by forest environmental factors. The total of 19 environmental factors on cut slope of forest roads were investigated in about 42.74km constructed during 1987 to 1993 in Gyeongnam and Jeonnam province. The evaluation of slope stability in forest roads were conducted by the discriment analysis. The main factors influencing the stability of cut slope were significant in order of coverage, soil hardness, degree of slope, altitude, silt loam, convex(凸) and compound(凹凸). The centroids value of discriminant function in the stability and unstability area estimated to -1.194 and 1.127, respectively. The boundary value between two groups related to slope stability was -0.072. The prediction rate of discriminant function for stability evaluation of was as high as 90.4%.
Keywords
Slope stability; Discriminant analysis; Prediction rate;
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