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Time and Stress Dependent Compression in Soft Sediments

by D. McG. Elder, Univ of Oxford, Dep of Engineering, Science, Oxford, England,
G. C. Sills, Univ of Oxford, Dep of Engineering, Science, Oxford, England,



Document Type: Proceeding Paper

Part of: Sedimentation Consolidation Models?Predictions and Validation

Abstract:

Results are presented for laboratory experiments using a typical estuarine mud settling from a slurry in columns of 100mm diameter. Measurements have been made of density and pore water pressure from which total and effective stress distributions are calculated. Volumetric strains for very soft soils are considerable and are affected both by effective stress changes and time, the latter giving rise to apparent overconsolidation.

Subject Headings: Soil pressure | Soil compression | Soft soils | Effective stress | Consolidated soils | Water pressure | Soil stress

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