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Material Keys <br /> 1:Overburden <br /> 2:Sand and Gravel <br /> 280 3:Weathered Bedrock <br /> 4:Stable Bedrock <br /> 260 5:Slurry Wall <br /> 240 <br /> _ 85 ft Offset to Ditch Bank <br /> E <br /> 220 J s <br /> m <br /> C � L <br /> 'C _ U <br /> 200 <br /> 180 <br /> 160 <br /> 140 — ------. -—-—-—- —.,.._,._ - __- <br /> 120 <br /> 100 <br /> Analysis 1 <br /> 80 <br /> Multiple Stability Analysis <br /> Method: Spencer-Wright <br /> 60 Surface: Circular <br /> 40 L I I 1 1 =j Results <br /> 100 150 200 250 300 350 400 450 Critical Factor of Safety: 1.85 <br /> Interslice Force(Final)Angle: 11.0' <br /> GALENA Version 7.2 Licensed to:J&T Consulting <br /> Edited.' 4 Dec 2020 <br /> Project West Farm Pit Expansion Processed: 4 Dec2020 <br /> Case 3-1 Rapid Drawdown <br /> JaT Consulting,Inc. <br /> File:C:\Galena Models\Case 3-1\West Farm Expansion Case 3-1 Rapid Drawdown.gmf V <br />