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C~ <br />,F <br /> <br />• <br />• <br />0 <br />0 <br />Figure 78. Friction and Cohesion for East Wall <br /> <br /> COHESION <br /> <br /> <br />i i <br /> <br /> FRICTION <br /> <br /> <br /> <br />Current design <br />i height of East Wall <br />of Cresson Pit ` Current maximum <br />design height of <br />East Wall of <br />Cresson Pit <br />500 1000 1500 2000 <br />Pit Watl Helght (ft) <br />-~- Friction ~-Cohesion <br />goo <br />600 <br />500 <br />400 <br />h <br />°. <br />0 <br />N <br />t <br />O <br />U <br />300 <br />200 <br />100 <br />0 <br />2500 <br />1385D.98O612 ~ <br />Mai nCressonSlopeEvaluation <br />AdrianBrown <br />~o <br />6C <br />50 <br />40 <br />d <br />0 <br />V <br />Y. <br />30 <br />20 <br />10 <br />