Abstract
A case study on the measurement of lateral movement of an abutment supported by pile groups constructed in a cohesive soil is reported in this paper. Based on prediction at the design stage and observational construction control, the abutment was successfully constructed within the range of allowable lateral movement. After the completion of construction, the 3D elasto-plastic coupled FE analysis based on the Cam-clay model was applied to the problem. Although the analysis overpredicted the lateral movement, it was indicated that such analysis is useful for evaluating the mechanism of lateral movement of such an abutment and the effect of the weak surface soil, replaced by more “competent” material.
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