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Keywords: contractor
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Proceedings Papers

Paper presented at the 1st Canada - U.S. Rock Mechanics Symposium, May 27–31, 2007
Paper Number: ARMA-07-109
... of the rockslope above the access road and pad. However, during excavation to the first bench the contractor encountered very weak and fractured rock and a 0.6m (2ft) stratum of gyp- sum below the cut line. Once the access road and first tier of the pad was excavated, three exploratory boreholes were completed...

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