A new method for automatic discontinuity traces sampling on rock mass 3D model
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Einstein_A new method.pdf
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404.05 KB
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Author(s)
Umili, G.
Ferrero, A.
Bernstein, Herbert H.
Einstein, Herbert H.
Date Issued
August 2012
Journal
Computers & Geosciences
Publisher
Elsevier
Citation
Umili, G., A. Ferrero, and H.H. Einstein. “A New Method for Automatic Discontinuity Traces Sampling on Rock Mass 3D Model.” Computers & Geosciences 51 (February 2013): 182–92.
Version
Author's final manuscript
Abstract
A new automatic method for discontinuity traces mapping and sampling on a rock mass digital model is described in this work. The implemented procedure allows one to automatically identify discontinuity traces on a Digital Surface Model: traces are detected directly as surface breaklines, by means of maximum and minimum principal curvature values of the vertices that constitute the model surface. Color influence and user errors, that usually characterize the trace mapping on images, are eliminated. Also trace sampling procedures based on circular windows and circular scanlines have been implemented: they are used to infer trace data and to calculate values of mean trace length, expected discontinuity diameter and intensity of rock discontinuities. The method is tested on a case study: results obtained applying the automatic procedure on the DSM of a rock face are compared to those obtained performing a manual sampling on the orthophotograph of the same rock face.
MIT Department
Massachusetts Institute of Technology. Department of Civil and Environmental Engineering
Terms of Use
Creative Commons Attribution-NonCommercial-NoDerivs License
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DOI of Published Version
https://doi.org/10.1016/j.cageo.2012.07.026
