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Table 3: Summary of results from measurement and FEM analysis

* During first filling back analysis, Ef = 2EC. Where Ec = construction elasticity modulus and Ef = filling elasticity modulus

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