Probabilistic Kinematic Analysis of Rock Slope Stability Using Terrestrial LiDAR

被引:1
作者
Hong, Seok Kwon [1 ]
Park, Hyuck Jin [1 ]
机构
[1] Sejong Univ, Dept Geoinformat Engn, Seoul 143747, South Korea
来源
ECONOMIC AND ENVIRONMENTAL GEOLOGY | 2019年 / 52卷 / 03期
关键词
discontinuity; uncertainty; kinematic analysis; probabilistic analysis; terrestrial LiDAR;
D O I
10.9719/EEG.2019.52.3.231
中图分类号
P5 [地质学];
学科分类号
0709 ; 081803 ;
摘要
Kinematic analysis determines the stability of rock slope by analyzing the relationship between the slope face orientation and the discontinuity orientation. In this study, terrestrial LiDAR was used to obtain a large amount of discontinuity orientation data and then, the probabilistic characteristics of the orientation data obtained using terrestrial LiDAR were analyzed. Subsequently, the probabilistic kinematic analysis was carried out using the discontinuity orientations generated randomly from Fisher function in Monte Carlo simulation. In addition, the probabilistic kinematic analysis was also performed using the actual orientation data obtained from the terrestrial LiDAR to compare their results. Consequently, the results of both probabilistic analyses showed similar results. Therefore, if sufficient orientation data are provided by other means such as terrestrial LiDAR, the probabilistic analysis will show reasonable results using the actual field data without randomly generating orientation data. In addition, the deterministic kinematic analysis was also carried out using representative orientation of discontinuity sets. The analysis result of the probabilistic analysis showed similar results with the deterministic analysis because the dispersion of the discontinuity orientations in a joint set is not large.
引用
收藏
页码:231 / 241
页数:11
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