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page three <br />28 November 2012 <br />M12058MT <br />entire mass is determined by summing the driving and summing the <br />resisting forces acting on all slices and comparing these forces. <br />Our slope stability analysis was performed using "Slope <br />Stability Analysis" by Geosoft computer software. Our slope <br />stability analysis considered one (1) assumed a typical cross <br />section, as noted above, with a total of about 225 separate <br />possible failure surface iterations to help identify the <br />potential theoretical slope stability. Our discussions and data <br />presentation are based only on the calculated critical circle <br />which presented the lowest -factor of safety against failure. Our <br />presentation does not include the results of all of the itera- <br />tions which resulted in a theoretical factor of safety greater <br />than the lowest factor of safety and therefore were not critical. <br />Our analysis was based on laboratory strength test results for <br />the fill material. The soil strength values used in our analysis <br />included: <br />"He f0-29-12 Iwo <br />240 <br />200 <br />N <br />X <br />< 120 <br />r <br />so <br />40 <br />New Horizon Mine <br />10 most critical surfaces, MINIMUM BISHOP FOS = 1.531 <br />0 40 80 120 180 200 240 280 320 <br />X—AXIS (feet) <br />art alai►r <br />CONSULTING GEOTECHNICAL ENGINEERS <br />AND MATERIAL TESTING <br />Appendix 2.05.3(4)-6 Page 4 December 2018 (TR -19) <br />