Abstract
Time‐settlement data of more than 30 different sections of the 55‐km long Bangna‐Bangpakong Highway in Thailand are analyzed. The deformation parameters, namely: undrained modulus, Eu; drained modulus, E′; and coefficient of consolidation, Cv, are backfigured from the field performance of the highway embankment, and the following correlations are found: Eu/Suv=150; E′/Suv=15; and Cv(field)/Cv(lab)=26; where Suv is the uncorrected vane shear strength. It was also found that Cv values are overestimated by the method of Asaoka when the during‐construction time‐settlement curve is used, and are best estimated when backfigured from postconstruction performance. It is also found that for construction settlements, the method proposed by Cox, which is a combination of the method of D'Appolonia et al. for immediate settlements and that of Leroueil et al. for consolidation settlements, underpredicts settlements at some sections but yields conservative estimates when considering secondary settlements since the begin...
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