Deepening an old, verticalised pit: rock slope instability hazard assessment using a digitally augmented structural database (Flône limestone quarry, Belgium)
We present a rock slope instability hazard study of the Flône pit (Belgium) by means of a deterministic kinematic stability analysis. The specificity of this study resides in the “digital augmentation” of the field mapping structural database (x 5) by semi-automatic point cloud analysis. Results show that the main instability hazards in the actual pit are flexural toppling and, to a lesser extent, wedge sliding. Planar sliding, although minor, will constitute a significant hazard for interbench rupture during future excavation due to the presence of an anticline structure at depth. The augment... Mehr ...
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Dokumenttyp: | Artikel |
Erscheinungsdatum: | 2021 |
Reihe/Periodikum: | European Geologist, Vol 51, Pp 15-19 (2021) |
Verlag/Hrsg.: |
European Federation of Geologists
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Schlagwörter: | geotechnics / Geology / QE1-996.5 |
Sprache: | Englisch |
Permalink: | https://search.fid-benelux.de/Record/base-27003984 |
Datenquelle: | BASE; Originalkatalog |
Powered By: | BASE |
Link(s) : | https://doi.org/10.5281/zenodo.4954423 |
We present a rock slope instability hazard study of the Flône pit (Belgium) by means of a deterministic kinematic stability analysis. The specificity of this study resides in the “digital augmentation” of the field mapping structural database (x 5) by semi-automatic point cloud analysis. Results show that the main instability hazards in the actual pit are flexural toppling and, to a lesser extent, wedge sliding. Planar sliding, although minor, will constitute a significant hazard for interbench rupture during future excavation due to the presence of an anticline structure at depth. The augmented - and georeferenced - structural database has enabled us to generate a synthetic rock slope instability hazard map that constitutes the basis for the recommendation of targeted monitoring solutions during future excavation works.