Supporting Technical Assessments

2.840 Distance 0 100 200 300 400 500 Elevation 50 60 70 80 90 100 110 120 130 140 150 160 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.: 0 Factor of Safety: 2.840 Color Name Model Unit Weight (kN/m³) Minimum Strength (kPa) Tau/Sigma Ratio Strength Function Effective Cohesion (kPa) Effective Friction Angle (°) Phi-B (°) Piezometric Line Drnd Zone A/I Found UC Mohr-Coulomb 17.5 3 31 0 2 Drnd Zone A/I Mine OB Mohr-Coulomb 20.5 5 35 0 2 Drnd Zone B Above RL145 Mohr-Coulomb 20.5 5 35 0 1 Drnd Zone B Below RL145 Mohr-Coulomb 20.5 3 31 0 Drnd Zone C1 Mohr-Coulomb 20.5 21 21 0 2 Drnd Zone C2/F Shear/Normal Fn. 20.5 Gravels/Cobbles Dr=0.85 (16%ile) 0 2 Drnd Zone D2 Mohr-Coulomb 19.5 5 35 0 2 Drnd Zone D3 Mohr-Coulomb 19 10 18 0 2 Drnd Zone G Mohr-Coulomb 20.5 3 31 0 2 Impenetrable Bedrock (Impenetrable) 1 Tails Fresh SHANSEP 16 0 0.04 1 Factor of Safety 2.840 - 2.940 2.940 - 3.040 ≥ 3.040 08/10/2021 20211008 TSF3 RL155 S2d.gsz Figure B29-Static-Close-Peak-Drnd-ZneA 1:2,198 By: ET

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