Table 3: Summary of results from measurement and FEM analysis Material Elasticity modulus E, MPa Poisson ratio Max settlement, end of construction (cm) Concrete face max Settlement due to filling (cm) stress compression MPa Measured Back analysis Measured Back analysis Measured Back analysis* Back analysis 3B 80-100 120 0.21 T 122-160 150 0.22 80 78 23 22 6.6 3C 67-72 90 0.23 * During first filling back analysis, Ef = 2EC. Where Ec = construction elasticity modulus and Ef = filling elasticity modulus