Econ. Environ. Geol. 2014; 47(2): 121-131

Published online April 30, 2014

© THE KOREAN SOCIETY OF ECONOMIC AND ENVIRONMENTAL GEOLOGY

Kinematic Analysis of Plane Failure for Rock Slope Using GIS and Probabilistic Analysis Method

Seok Hwan Lee and Hyuck Jin Park*

Department of Geoinformation Engineering, Sejong University, Seoul 143-747 Korea

Correspondence to :

Hyuck Jin Park

hjpark@sejong.ac.kr

Received: March 11, 2014; Revised: April 20, 2014; Accepted: April 23, 2014

Abstract

The stability of rock slope is mainly controlled by the orientation and shear strength of discontinuties in rock mass. Therefore, in kinematic analysis, the orientation of the combination of discontinuities and slope face is examined to determine if certain modes of failure can be occurred. In previous kinematic analysis, a representative orientation of the slope face and mean orientation of discontinuity set were used as input parameters. However, since the orientations of slope face varies according to locations of measurement, the representative slope face orientation could cause misunderstanding for kinematic instability. In addition, since the orientations of each discontinuity are scattered in the same discontinuity set, there is the possibility that uncertainties are involved in the procedure of kinematic analysis. Therefore, in this study, the detailed digital topographic map was used to obtain the orientation of slope face. In addition, the probabilistic analysis approach was utilized to deal properly with the uncertainties in discontinuity orientation. The proposed approach was applied to steep slopes in mountain road located in Baehuryeong, Chunncheon city, Gangwon-Do. The analysis results obtained from the deterministic and probabilistic analysis were compared to check the feasibility of proposed the analysis.

Keywords kinematic analysis, plane failure, Monte Carlo simulation, rock slope, GIS

Article

Econ. Environ. Geol. 2014; 47(2): 121-131

Published online April 30, 2014

Copyright © THE KOREAN SOCIETY OF ECONOMIC AND ENVIRONMENTAL GEOLOGY.

Kinematic Analysis of Plane Failure for Rock Slope Using GIS and Probabilistic Analysis Method

Seok Hwan Lee and Hyuck Jin Park*

Department of Geoinformation Engineering, Sejong University, Seoul 143-747 Korea

Correspondence to:

Hyuck Jin Park

hjpark@sejong.ac.kr

Received: March 11, 2014; Revised: April 20, 2014; Accepted: April 23, 2014

Abstract

The stability of rock slope is mainly controlled by the orientation and shear strength of discontinuties in rock mass. Therefore, in kinematic analysis, the orientation of the combination of discontinuities and slope face is examined to determine if certain modes of failure can be occurred. In previous kinematic analysis, a representative orientation of the slope face and mean orientation of discontinuity set were used as input parameters. However, since the orientations of slope face varies according to locations of measurement, the representative slope face orientation could cause misunderstanding for kinematic instability. In addition, since the orientations of each discontinuity are scattered in the same discontinuity set, there is the possibility that uncertainties are involved in the procedure of kinematic analysis. Therefore, in this study, the detailed digital topographic map was used to obtain the orientation of slope face. In addition, the probabilistic analysis approach was utilized to deal properly with the uncertainties in discontinuity orientation. The proposed approach was applied to steep slopes in mountain road located in Baehuryeong, Chunncheon city, Gangwon-Do. The analysis results obtained from the deterministic and probabilistic analysis were compared to check the feasibility of proposed the analysis.

Keywords kinematic analysis, plane failure, Monte Carlo simulation, rock slope, GIS

    KSEEG
    Apr 30, 2024 Vol.57 No.2, pp. 107~280

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