SEDL / STP / STP501-EB / STP38797S

Obtaining Strength Profiles with Depth for Marine Soil Deposits Using Disturbed Samples

Sangrey, DA
Associate professor, School of Civil and Environmental Engineering, Cornell University, Ithaca, N. Y.

Pages: 16    Published: Jan 1972

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Abstract

Three methods are presented for predicting the undrained shear strength of marine soils using parameters obtained from tests on disturbed samples. The predictions are developed from (a) a rational approach using critical state soil mechanics, (b) an empirical relationship with plasticity index, and (c) an association with the liquidity index. A series of case studies are reviewed leading to the conclusion that the rational critical state approach leads to a conservative estimate of peak strength for all cases except the underconsolidated soil; the empirical method provides a reasonable prediction of peak strength for normally consolidated soils; and the use of liquidity index provides a close estimate of remolded strength.