Abstract
Abstract The shear strength of a young post-glacial organic clayey silt has been investigated. This soil is typical of the coastal regions of northern Sweden. The shear strength was determined in the field by vane tests, and in the laboratory by fall-cone, unconfined compression, direct shear and triaxial tests. The undrained shear strength as determined by vane, fall-cone or unconfined compression tests was larger than that determined In situ by large scale plate load tests. This difference in shear strength has been attributed to strength anisotropy and to differences in loading rate and failure mode. The in situ shear strength was found to be equal to the average strength as determined by triaxial compression, direct shear and triaxial extension test.
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