1.50 Distance 200 300 400 500 600 700 800 900 Elevation 30 50 70 90 110 130 150 170 Color Name Model Unit Weight (kN/m³) Cohesion (kPa) Minimum Strength (kPa) Tau/Sigma Ratio Efective Cohesion (kPa) Efective Friction Angle(°) Strength Function Phi-B (°) Piezometric Line Ru Include Ruin PWP Impenetrable Bedrock (Impenetrable) 1 No Udrnd Ash/CWRock/Resid.S Shear/NormalFn. 17 Ash/CWRock 0 1 0.1 Yes UdrndSPZoneD2 Shear/NormalFn. 19.5 Grav./Cobb. Dr=0.85 (16%ile) 0 1 0.05 Yes UdrndSPZoneD3 Mohr-Coulomb 19 10 18 0 1 0.4 Yes UdrndSPZoneE SHANSEP 19 0 0.21 1 0.6 Yes UdrndZoneA/I Fdtn UC SHANSEP 17.5 80 0.35 1 0.3 Yes UdrndZoneA/IMine OB SHANSEP 20.5 150 0.4 1 0.1 Yes UdrndZoneF Shear/NormalFn. 20.5 Grav./Cobb. Dr=0.85 (16%ile) 0 1 0.05 Yes UdrndZoneG Undrained(Phi=0) 20.5 100 1 No 20.482 m 42.395 m 146.3 m 11.3 m 20.528 m 54.316 m 47.043 m Factor of Safety 1.50 - 1.60 1.60 - 1.70 ≥ 1.70 13/10/2021 Section 2a.gsz Figure B22b North Slope Udrnd 1:4,000 By: ET Analysis Settings Method: Morgenstern-Price Direction of movement: Left to Right Slip Surface Option: Entry and Exit Unit Weight of Water: 9.807 kN/m³ Horz Seismic Coef.: Factor of Safety: 1.50 Color Name Model Unit Weight (kN/m³) Cohesion (kPa) Minimum Strength (kPa) Tau/Sigma Ratio Effective Cohesion (kPa) Effective Friction Angle (°) Strength Function Piezometric Line Ru Include Ru in PWP Impenetrable Bedrock (Impenetrable) 1 No Udrnd Ash/CWRock/Resid.S Shear/Normal Fn. 17 Ash/CWRock 1 0.1 Yes Udrnd SP Zone D2 Shear/Normal Fn. 19.5 Grav./Cobb. Dr=0.85 (16%ile) 1 0.05 Yes Udrnd SP Zone D3 Mohr-Coulomb 19 10 18 1 0.4 Yes Udrnd SP Zone E SHANSEP 19 0 0.21 1 0.6 Yes Udrnd Zone A/I Fdtn UC SHANSEP 17.5 80 0.35 1 0.3 Yes Udrnd Zone A/I Mine OB SHANSEP 20.5 150 0.4 1 0.1 Yes Udrnd Zone F Shear/Normal Fn. 20.5 Grav./Cobb. Dr=0.85 (16%ile) 1 0.05 Yes Udrnd Zone G Undrained (Phi=0) 20.5 100 1 No
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