Coefficient of Secondary Compression

by Gholamreza Mesri, (A.M.ASCE), Asst. Prof. of Civ. Engrg.; Univ. of Illinois at Urbana-Champaign, Urbana, IL,

Serial Information: Journal of the Soil Mechanics and Foundations Division, 1973, Vol. 99, Issue 1, Pg. 123-137

Document Type: Journal Paper

Discussion: Kelley William E. (See full record)
Discussion: Andersland Orlando B. (See full record)
Discussion: Keene Philip (See full record)
Discussion: Habibagahi Karim (See full record)
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The mechanism of secondary compression in soils can be described in terms of changes in soil structure. Instant and delayed compression are parts of the continuous process of volume change, and for normally consolidated natural soils, the coefficient of secondary compression and compression index is influenced by such factors as time, consolidation pressure, precompression, sustained loading, remolding, shear stresses, rate of increase in effective stress, sample thickness, and temperature. Of all the factors considered, precompression and sustained loading have the most important influence on the coefficient of secondary compression.

Subject Headings: Soil compression | Compression | Load factors | Shear stress | Consolidated soils | Soil structures | Effective stress | Volume change | Soil pressure

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