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Keywords: threshold
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Proceedings Papers

Paper presented at the 1st Canada - U.S. Rock Mechanics Symposium, May 27–31, 2007
Paper Number: ARMA-07-008
... access mini- mization. First a region (root node) large enough to enclose the entire point cloud is computed. Points are added one by one until the root node (level 0) contains a total number of point equals to a given threshold. The node is then equally splitted into eight sub regions (sub nodes) (level...
Proceedings Papers

Paper presented at the 1st Canada - U.S. Rock Mechanics Symposium, May 27–31, 2007
Paper Number: ARMA-07-031
... compressive strength for ex- cavations in hard rocks corresponds to an extension crack damage initiation threshold that is a function of the nature and density of internal flaws and hete- rogeneity. This threshold (UCS*) is expressed rela- tive to laboratory Unconfined Compressive Strength (UCSi), and can...
Proceedings Papers

Paper presented at the 1st Canada - U.S. Rock Mechanics Symposium, May 27–31, 2007
Paper Number: ARMA-07-014
... Intelligence application poropat spatial data surface feature fused-feature approach Imaging mapping threshold algorithm structural mapping 1 INTRODUCTION In recent years, the use of laser and photogramme- tric systems to map the surface topology of rock fac- es in mining and civil engineering...

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