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Evaluation of Planar Failure Probability for Rock Slope Based on Random Properties of Discontinuities  

배규진 (한국건설기술연구원 토목연구부)
박혁진 (시설안전기술공단)
Publication Information
Journal of the Korean Geotechnical Society / v.18, no.2, 2002 , pp. 97-105 More about this Journal
Abstract
Random properties of discontinuities were attributed to the limitation of test methods and lack of obtained data. Therefore, the uncertainties are pervasive and inevitable in rock slope engineering as well as other geotechnical engineering fields. The probabilistic analysis has been proposed to deal properly with the uncertainty. However, previous probabilistic approaches do not take account of the condition of kinematic instability but consider only kinetic instability. In this study, in order to overcome the limitation of the previous studies, the geometric characteristics as well as the shear strength characteristics in discontinuities are taken account into the probabilistic analysis. Then, the new approach to evaluate the probability of failure is suggested. The results of the deterministic analysis which was carried out to compare with the result of the probabilistic analysis, are somewhat different from those of the probabilistic approach. This is because the selected and used data in the deterministic approach do not take account of the random properties of discontinuities.
Keywords
Discontinuity; Kinematic instability; Kinetic instability; Probability of failure; Random property;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
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