Browse > Article

Study on Suggestion a Standard Installation for Damage Reduction alarm System using Cut-Slope Data  

Bae, Gyu-Jin (한국건설기술연구원 토목연구부)
Koo, Ho-Bon (한국건설기술연구원 토목연구부)
Baek, Yong (한국건설기술연구원 토목연구부)
Publication Information
The Journal of Engineering Geology / v.12, no.1, 2002 , pp. 53-61 More about this Journal
Abstract
Cut-slope due to the road construction is one of the most significant problems in the domestic case, that is, 70% of the land is covered by mountain. Moreover, typhoons or heavy rains concentrated in summer season causes the failure of cut-slope. Rock-fall and soil slope failure take 40.8% and 29.5% out of the entire domestic cut-slope failure, respectively. Rock-fall is quickly occurred by the free fall or rolling of rock fragments generally in the upper slope. Soil slope failure produces a clastics-flow and increases casualty especially when caused by heave rainfall because the velocity of the movement is verb high. Considering the car speed and rock-fall velocity, it will take a life in a moment. This study analyzes a set of field data of most recently collapsed domestic road cut-slopes to characterize these cut-slopes and the nature of rock-falls and clastics flows at each site. Based on the results, design criteria for a road alarm system are proposed, considering the relationship between the time required for clastics-flow and the velocity and braking distance of a cat at the incidence. The road alarm system proposed herein would operate instantly after a rock-fall and it will minimize damages, by warning drivels approaching to the collapse or collapsing location in advance.
Keywords
cut-slope; rock-fall; rock-fall velocity; alarm system; braking distance;
Citations & Related Records
연도 인용수 순위
  • Reference
1 /
[ Brawner, C. O. ] / Rockfall Hazard Mitigation methods;Participant Workbook
2 /
[ 구호본 ] / 도로절개면 유지관리시스템 개발 및 운용Ⅱ
3 /
[ 구호본 ] / 도로절개면 유지관리시스템 개발 및 운용Ⅲ
4 Slope Movement Types and Proccesses. In Special Report 176:Landslides:Analysis and Control /
[ Varnes, D. J.;R. L. Schuster(ed.);R. J. Krizek(ed.) ] / National Reserch Council
5 /
[ Gili, J. A.;Corominas, J.;Rius, J. ] / Using global positioning system techniques in jandslide monitoring
6 General two-dimensional slope stability analysis /
[ Hoek, E.;E. T. Brawn(ed.) ] / In Analytical and Computational Methods in Engineering Rock Mechanics
7 /
[ 원제무;최재성 ] / 개정판 교통공학
8 Real-Time Monitoring of Active Landsliders /
[ Reid, M. E.;Lahusen, R. G.;Ellis, W. L. ] / USGS Fact Sheet
9 /
[ Bell, F. G. ] / Engineering in rock Masses
10 Field Instrumentation, In special Report 247:Landslide;Investigation and Mitigation /
[ Mikkelsen, P. E.;Turner, A. K.(ed.);Schuster, R. L.(ed.) ] / Transoprtation Reserch Board, USA