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Table 2: Design criteria

Item Description Value
Maximum reservoir level Summer PMF with stop logs El. 217.36m
Normal reservoir level Summer with stop logs El. 214.74m
Slope stability analysis: safety factory against slope failure Static 1.5
Rapid draw down 1.3
Post earthquake liquefied ground 1.1
Cyclic pore pressure safety factor against liquefaction i) >=1.4 i) Use full effective stress strength and static water table
ii) 1.4 to 1.1 ii) Interpolate between i) and iii)
iii) <=1.1 iii) Residual strength (Seed and Harder 1990)
Deformation Minimum post MCE dam crest El. 217.36m
Horizontal deformation <=1m or 10% of layer thickness