Comparing manual and remote sensing field discontinuity collection used in kinematic stability assessment of failed rock slopes

Bordehore et al compare manual and remote sensing field discontinuity collection used in kinematic stability assessment of failed rock slopes. The study presented herein has highlighted that the combined analysis of discontinuity orientations obtained by manual procedures using a compass and from 3D...

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Bibliographic Details
Published in:International journal of rock mechanics and mining sciences (Oxford, England : 1997) England : 1997), 2017-09, Vol.97, p.24-32
Main Authors: Jordá Bordehore, Luis, Riquelme, Adrian, Cano, Miguel, Tomás, Roberto
Format: Article
Language:English
Subjects:
Cracks
Data collection
Discontinuity
Failure analysis
Remote sensing
Rocks
Slope stability
Slopes
Stability analysis
Stereograms
Tension
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Summary:Bordehore et al compare manual and remote sensing field discontinuity collection used in kinematic stability assessment of failed rock slopes. The study presented herein has highlighted that the combined analysis of discontinuity orientations obtained by manual procedures using a compass and from 3D point clouds enable a considerable increment in the quality of the stereograms produced, and therefore, of the orientations derived. One important advantage is that the combination of both methods improves representativeness of minority discontinuities or those with scarce dip measurements (e.g. Ji). These joint stats were previously under-represented due to accessibility difficulties for manual data collection with a compass. In this sense, the analyses carried out have highlighted that the slope failure studied by Jorda et al.28 occurred through the curve surface defined by S0 and J2, instead of S0 only. The "1 set, widely represented at the upper pan of the slope, is responsible for delimiting the failure in tension crack mode.
ISSN:1365-1609
1873-4545
DOI:10.1016/j.ijrmms.2017.06.004