Consolidation Performance of Soft Clays: Part 2. Predictions

by M. Soulié, Ecole Polytechnique, Montreal, Quebec Canada,
V. Silvestri, Ecole Polytechnique, Montreal, Quebec Canada,

Document Type: Proceeding Paper

Part of: Sedimentation Consolidation Models—Predictions and Validation


The simplified version of the model described in Part 1 was used to predict the short-term performance of the St. Alban test fill. The long-term predictive capability of the model was tested and implemented by seven year observations of the I-95 highway test fill built near Boston. A version of the model without the concept of undrained creep was found to predict vertical and horizontal displacements but yielded pore water pressures that were lagging behind vertical settlements. A new version was implemented which takes into account undrained creep. This version was used to predict the long-term behaviour of the Cubzac Les Ponts test fill and the soft clay stratum on which it is founded.

Subject Headings: Consolidated soils | Fills | Water pressure | Clays | Soft soils | Soil settlement | Highways and roads | Soil pressure | Boston | Massachusetts | United States

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