Open AccessIntersection-Based Potential Plane Failure Detection on 3D Meshes for Rock Slopes
Author(s) -
R. Tsui,
C. Cheung,
J. Hart,
Wenzhu Hou,
Alan Ng
Publication year - 2022
Publication title -
aijr proceedings
Language(s) - English
Resource type - Conference proceedings
ISSN - 2582-3922
DOI - 10.21467/proceedings.126.27
Subject(s) - classification of discontinuities , discontinuity (linguistics) , polygon mesh , intersection (aeronautics) , planar , block (permutation group theory) , plane (geometry) , geology , computer science , geometry , computer graphics (images) , engineering , mathematics , mathematical analysis , aerospace engineering
Plane failure, a major class of rock block failures, will be considered kinematically feasible on a rock discontinuity if it fulfills certain criteria when plotted and analysed on a stereonet. However, it is often the case that this approach does not consider if a block is present above the discontinuity. With significant advances in digital surveying techniques in recent years, high-resolution 3D meshes can be readily produced for rock slope stability assessments. A semi-automatic, intersection-based approach has been developed by the authors to detect potentially adverse planar discontinuities and their intersections with planar blocks on 3D meshes. The approach involves the detection of the necessary geometrical conditions for a rock block located above a planar discontinuity and in a potentially detachable condition.