Fundamental Shear-Strength Properties of the Lilla Edet Clay

Synopsis The Paper gives an interpretation in terms of fundamental shear-strength parameters of a series of triaxial tests on a slightly overconsolidated, highly sensitive clay. A study of the variation in true cohesion with water content indicates that after sedimentation, some of the samples have developed bonds between the particles with the nature of chemical cementation. The bonds are first broken when the samples are reconsolidated at pressures higher than a certain critical value. The test results indicate furthermore that a part of the preconsolidation effect observed from results of consolidation tests may be due to such bonds. L'article donne une interpretation en termes parametres de resistance fondamentale au cisail- lement, d'une serie d'experiences triaxiales sur une argile fortement sensible au remaniement et legere- ment surconsolidee. Une etude de la variation de cohesion vraie selon la teneur en eau montre qu'apres sedimentation certains echantillons ont etablis des liens entre les parti...