Published: Jan 1964
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The vane shear apparatus, in the form of both the field vane and the laboratory vane, has been used extensively as a cheap and rapid means of determining the shear strength of soils, but very little work has been done on checking the applicability of the vane test to various soils. It has been customary to relate the shear strength of the soil to the torque applied by the vane shaft. In some investigations, it has been found that vane tests gave unexpectedly high values for the shear strength when checked against stability analyses. The vane, which was developed to measure in situ the shear strength of sensitive soils, has been widely used in fine-grained soils where it appeared to give satisfactory results; it was anticipated that erroneous results would be obtained by using the vane in coarse-grained soils.
Assistant professor, McMaster University, Hamilton,