Browse > Article

Characteristics of Slope Failure Due to Local Downpour and Slope Stability Analysis with Changing Soil Depth and Groundwater Level  

Baek Yong (Korea Institute of Construction Technology, Dept. Geo-technical Eng.)
Kwon O-Il (Korea Institute of Construction Technology, Dept. Geo-technical Eng.)
Kim Seong-Hyun (Korea Institute of Construction Technology, Dept. Geo-technical Eng.)
Koo Ho-Bon (Korea Institute of Construction Technology, Dept. Geo-technical Eng.)
Publication Information
The Journal of Engineering Geology / v.15, no.1, 2005 , pp. 57-66 More about this Journal
Abstract
The failure of cut slope and landslide sometimes come from a local downpour within a short duration in Korea. Especially, most of recent downpour converged upon a limited region and seemed the characteristics of guerilla. Characteristics of slopes failed due to local downpour are analyzed. failure mode is also analyzed with respect to the depth of soil layers and the change of groundwater level. To blow the influence factors of the slope stability during local downpour, the authors conducted field survey for failed slopes and tried to make a comparative study of 1,372 cut slope data distributed in the national road. FLAC-SLOPE(ITASCA Co.) is used to analyze slope stability with changing depth of soil layers and groundwater level. The result shows that the failed types of domestic slopes during local downpour are mainly shallow collapse and landslide. The change of soil depth and groundwater level have influenced on the stability of slopes.
Keywords
downpour; cut-slope; numerical analysis; shallow collapse; geometrical analysis;
Citations & Related Records
연도 인용수 순위
  • Reference
1 임희대, 이승래, 김영묵, 2001, 강우시 토사사면의 안정성 평가, 대림기술정보, pp. 4-16
2 재해영향평가서, 2001, 사면안정성 평가법 개발, 국립 방재연구소, pp. 10
3 한국건설기술연구원, 2002, 도로절개면 유지관리시스 템 개발 및 운용, 건설교통부
4 Dai. F. C. and Lee. C. F., 2001, Frequency-volume relation and prediction of rainfall-induced landslides, Engineering Geology, 59, pp. 253-266   DOI   ScienceOn
5 이인모, 조우성, 김영욱, 성상규, 2003, 풍화토 사면에서 강우로 인한 간극수압 변화에 대한 실험연구, 한국지반공학회논문집, 제 19권 1호 pp. 41-49
6 건설교통부, 1999, 도로설계편람, 한국건설기술연구원
7 홍원표, 최승호, 한중근, 황인철, 1996, 강우시 사면안 정해석법에 관한 연구, 대한토목학회 발표회 논문 집, pp. 195-198
8 Hoek, E. & Bray, J., 1981, 'Rock Slope Engineering', Revised Third Edition, Institute of Mining and Metallurgy, London
9 조성은, 이승래, 2000, 강우침투에 따른 불포화 토사사면의 안정해석, 한국지반공학회논문집, 제 16권 제 1 호, pp. 51-64
10 건설교통부 도로관리과 홈페이지, 2002, www.moct.go.kr, 태풍루사에 의한 피해현황 보도자료