New Concepts in Consolidation and Settlement Analysis

by John Lowe, III, (F.ASCE), Partner; Tippetts-Abbett-McCarthy-Stratton, New York, NY,

Serial Information: Journal of the Geotechnical Engineering Division, 1974, Vol. 100, Issue 6, Pg. 571-612

Document Type: Journal Paper

Abstract: The paper describes modifications which have to be made to the Terzaghi Consolidation Theory in order that the theory properly represents actual consolidation conditions in the laboratory and in the field. The resulting theory is called the Modified Terzaghi Consolidation Theory. The relationship between void ratio or strain and intergranular pressure is required for a silt or clay soil. During consolidation, a silt or clay soil follows a strain-intergranular pressure path different from the path assumed in the Terzaghi Consolidation Theory. The Terzaghi Theory is modified for dissipation of hydrostatic excess pressure. For primary compression the Terzaghi Consolidation Theory is valid. However, the virtual initial hydrostatic excess pressure is in error. Definitions are given for the various types of preconsolidation loads.

Subject Headings: Soil pressure | Clays | Soil stress | Distinguished engineers | Consolidated soils | Strain | Silt |

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