SEDL / STP / STP193-EB / STP45008S

Vane In-Place Soil Shear Device Developed and Applied by Oregon State Highway Department

Hill, William C.
Soils Engineer, Oregon State Highway Department, Salem, Ore

Pages: 15    Published: Jan 1957

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Abstract

A vane type, in-place, soil shear testing device has been built by the Construction Division of the Oregon State Highway Dept. and used since 1953 in investigating questionable embankment foundation areas along proposed projects. The development of the device and the technique of using it are discussed. A review is made of the correlation between “in-place” soil shear strengths and laboratory direct shear tests made on “undisturbed” soil samples.

The limitations and advantages of the vane device as a field tool in locating questionable foundation areas and depths in nongranular materials and determining their shear strengths for embankment design are discussed.