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How OHMS uses remote laser scanned discontinuity data for key block analysis
The application of point cloud data for the creation of high-resolution terrain maps, has become more common. The tool allows for the safe and accurate quantification or 'mapping' of planar features exposed in a pit wall. The quantitative assessment allows for proper kinematic analysis and the identification of probable slope failure mechanisms. The identification of potential slope failure mechanisms and the propensity for a particular mode of failure enables miners to quantify the hazard and hence manage the risk of slope failure. Recent scanning at rock slopes at the Pilanesberg Platinum mine revealed that the orientation of the wall relative to discontinuity sets may yield incomplete structural data. The mapping of discontinuities can therefore be biased due to the orientation of the slope relative to the discontinuities. This presentation shows how the orientation bias was identified and dealt with to ensure that the structural database was complete and effective in identifying and quantifying the slope stability hazard.

May 19, 2021 09:30 AM in Johannesburg

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