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Validation of Consolidation Properties of Phosphatic Clay at Very High Void Ratios

by Richard W. Scully, IT Corp, Englewood, CO, USA,
Robert L. Schiffman, IT Corp, Englewood, CO, USA,
Harold W. Olsen, IT Corp, Englewood, CO, USA,
Hon-Yim Ko, IT Corp, Englewood, CO, USA,



Document Type: Proceeding Paper

Part of: Sedimentation Consolidation Models?Predictions and Validation

Abstract:

The void ratio-effective stress and void ratio permeability relationships for phosphate slime mine tailings were measured by several methods. The measurements were used in nonlinear finite strain consolidation theory to predict the progress of settlement of a centrifugal prototype. The predicted and measured settlements were in only approximate agreement, with discrepancies attributed primarily to experimental errors in the centrifugal modeling and probable overestimation of permeabilities by the constant rate of deformation tests.

Subject Headings: Soil settlement | Permeability (soil) | Errors (statistics) | Computer models | Centrifuge models | Phosphate | Mine wastes

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