Accession Number:

AD0743167

Title:

Evaluation of Surface Shear Strength Measurements for Use in Laboratory Mobility Studies

Descriptive Note:

Final rept.

Corporate Author:

ARMY ENGINEER WATERWAYS EXPERIMENT STATION VICKSBURG MS

Personal Author(s):

Report Date:

1972-05-01

Pagination or Media Count:

24.0

Abstract:

Laboratory tests were conducted to determine which method of obtaining five different soil-to-rubber shear measurements with two rotary-shear devices, a Cohron sheargraph and a spline shear device, would produce the most consistent measurements or quantitative indexes of surface soil strength. The tests were made at 34.5-, 69.9-, and 103.4-kNsquare meters normal pressures on a fat clay whose surface moisture content ranged from 26.5 to 45.9 percent. It was found that peak shear measurements for the full range of soil strengths used could be obtained only at the normal pressure of 34.5 kNsquare meters because of excessive sinkage of the shear head at the higher normal pressures in the softer soils.

Subject Categories:

  • Soil Mechanics
  • Test Facilities, Equipment and Methods

Distribution Statement:

APPROVED FOR PUBLIC RELEASE