Undrained Shear Behavior of a Marine Clay


Book Description

A comprehensive series of undrained shear tests were performed on a lean sensitive marine clay in both the normally consolidated and overconsolidated state. The types of tests performed included triaxial compression and extension and direct simple shear tests on K0-consolidated specimens. It was found that the clay is highly anisotropic with respect to its undrained shear strength and its stress-strain characteristics. Undrained shear strengths from compression tests were 1.7 to 1.8 times greater than from extension tests. Undrained strengths from direct simple shear tests were somewhat higher than the strengths from extension tests. Similar anisotropic behavior was also observed for undrained moduli. Failure strains were found to be influenced by the stress system during consolidation and the mode of shear. K0-consolidated specimens sheared in compression failed at extremely low strains and showed significant strain softening. The importance of these observations as they may relate to problems of undrained stability is discussed.










Correlations of Soil and Rock Properties in Geotechnical Engineering


Book Description

This book presents a one-stop reference to the empirical correlations used extensively in geotechnical engineering. Empirical correlations play a key role in geotechnical engineering designs and analysis. Laboratory and in situ testing of soils can add significant cost to a civil engineering project. By using appropriate empirical correlations, it is possible to derive many design parameters, thus limiting our reliance on these soil tests. The authors have decades of experience in geotechnical engineering, as professional engineers or researchers. The objective of this book is to present a critical evaluation of a wide range of empirical correlations reported in the literature, along with typical values of soil parameters, in the light of their experience and knowledge. This book will be a one-stop-shop for the practising professionals, geotechnical researchers and academics looking for specific correlations for estimating certain geotechnical parameters. The empirical correlations in the forms of equations and charts and typical values are collated from extensive literature review, and from the authors' database.




Characterisation and Engineering Properties of Natural Soils, Two Volume Set


Book Description

Following on from the first two volumes, published in 2002, volumes 3 and 4 of Characterisation and Engineering Properties of Natural Soils review laboratory testing, in-situ testing, and methods of characterising natural soil variability, illustrated by actual site data. Less well-documented soil types are highlighted and the various papers take i




Frontiers in Offshore Geotechnics III


Book Description

Frontiers in Offshore Geotechnics III comprises the contributions presented at the Third International Symposium on Frontiers in Offshore Geotechnics (ISFOG, Oslo, Norway, 10-12 June 2015), organised by the Norwegian Geotechnical Institute (NGI). The papers address current and emerging geotechnical engineering challenges facing those working in off