Prediction of Slope Hazard Probability around Express Way using Decision Tree Model

Chan-Kee Kim; Gueon Jun Bak; Joong Chul Kim; Young-Suk Song; Jung-Mann Yun

doi:10.12814/jkgss.2013.12.2.067

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2013 Vol.12, Issue 2 Preview Page

Prediction of Slope Hazard Probability around Express Way using Decision Tree Model 의사결정나무모형을 이용한 고속도로 주변 급경사지재해 발생가능성 예측

30 June 2013. pp. 67-74

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Abstract

In this study, the prediction of slope hazard probability was performed to the study area located in Hadae-ri, Woochun-myeon, Hoengsung-gun, Gangwon Province around Youngdong express way using the computer program SHAPP ver 1.0 developed by a decision tree model. The soil samples were collected at total 10 points, and soil tests were performed to measure soil properties. The thematic maps of soil properties such as coefficient of permeability and void ratio were made on the basis of soil test results. The slope angle analysis of topography was performed using a digital map. As the prediction result of slope hazard probability, 2,120 cells among total 27,776 cells were predicted to be in the event of slope hazards. Therefore, the predicted area of occurring slope hazards may be 53,000m2 because the analyzed cell size was 5m*5m.

Keywords

Slope hazard probability

Decision tree model

Computer program

Express way

Natural Terrain

본 연구에서는 의사결정나무모형을 적용하여 개발된 급경사지재해 예측프로그램 SHAPP ver 1.0을 이용하여 강원도 횡성군 우천면 하대리 일대 영동고속도로 주변에 대한 급경사지재해 예측을 실시하였다. 이를 위하여 먼저 대상지역의 총 10개소에서 토층시료를 채취하고, 이에 대한 토질시험을 실시하였다. 대상지역에 대한 토질시험결과를 토대로 투수계수와 간극비에 대한 주제도를 작성하고 수치지형도를 이용하여 지형의 경사분석을 실시하였다. 이를 이용하여 급경사지재해 예측을 실시한 결과 총 27,776개의 해석셀 가운데 2,120개의 셀에서 급경사지재해가 발생될 것으로 예측되었다. 이때 해석셀의 크기는 5m×5m이므로 급경사지재해 발생예상 면적은 53,000m2으로 나타났다.

References

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3.Hong, W.P., Kim, W.Y., Song, Y.S., and Lim, S.G. (2004), “Prediction of landslide using artificial neural network model”, Journal of the Korean Geotechnical Society, Vol.20, No.4, pp.67-75 (In Korean).

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Information

Publisher :Korean Geosythetics Society
Publisher(Ko) :한국지반신소재학회
Journal Title :Journal of the Korean Geosynthetics Society
Journal Title(Ko) :한국지반신소재학회 논문집
Volume : 12
No :2
Pages :67-74
Received Date : 2013-05-23
Revised Date : 2013-06-19
Accepted Date : 2013-06-20
DOI :https://doi.org/10.12814/jkgss.2013.12.2.067

Journal of the Korean Geosynthetics Society ISSN:2508-2876(Print) 2287-9528(Online) 한국지반신소재학회 논문집

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