Effect of Preconsolidation of Settlements

by Leo Casagrande,

Serial Information: Journal of the Soil Mechanics and Foundations Division, 1964, Vol. 90, Issue 5, Pg. 349-365

Document Type: Journal Paper


By a theoretical investigation and by settlement analysis and observations on a large oil tank, it is shown that the ratio between the settlements along the periphery and in the center of a uniformly loaded area can vary within a wide range, depending on the degree of preconsolidation of the subsoil. For normally consolidated clay, this ratio normally ranges between 0.6 and 0.7, and for extremely sensitive, overconsolidated clay, it may be as small as 0.1, or even smaller.

Subject Headings: Soil settlement | Clays | Soil analysis | Storage tanks | High-rise buildings | Load factors | Subsoils | Overconsolidated soils

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