A COMPARISON OF SOIL SHEAR VALUES OBTAINED WITH DEVICES OF DIFFERENT GEOMETRICAL SHAPES

SEVERAL DEVICES WHICH VARIED GEOMETRICALLY WERE USED TO MAKE IN SITU MEASUREMENTS TO INDICATE THE SOIL SHEAR STRENGTH. THE COULOMB EQUATION MATHEMATICALLY REPRESENTS SHEAR STRENGTH AND ITS PARAMETERS OBTAINED FROM THE SHEARGRAPH, THE NIAE SHEAR BOX, AND A GROUSERED ANNULUS WERE COMPARED. ALSO, THE GEOMETRY OF GROUSERED ANNULI WERE VARIED, AND THE SHEARING STRESSES MEASURED WITH THE DIFFERENT ANNULI WERE COMPARED AT EQUAL NORMAL PRESSURES AND COMPARABLE DISPLACEMENTS. THE COMPARISONS WERE MADE IN FOUR SOILS' HIWASSEE SANDY LOAM, LLOYD CLAY, DAVIDSON CLAY, AND NORFOLK SANDY LOAM. IT IS SHOWN THAT THE SAME VALUES OF THE SHEAR STRENGTH WERE NOT OBTAINED FROM THE DIFFERENT DEVICES IN ONE SOIL AND SOIL CONDITION. WHEN THE VARIOUS SIZED GROUSERED ANNULI WERE COMPARED AT COMPARABLE DISPLACEMENTS AND EQUAL NORMAL PRESSURE, THE MEASURED SHEARING STRESSES WERE NOT EQUAL. ALSO, THE SOILS NONUNIFORMITY WITH DEPTH WAS SHOWN TO AFFECT THE MAGNITUDE OF THE MEASURED SHEARING STRESS.

  • Corporate Authors:

    Auburn University

    Auburn, AL  United States  36830
  • Authors:
    • Dunlap, W H
  • Publication Date: 1964

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Filing Info

  • Accession Number: 00234098
  • Record Type: Publication
  • Report/Paper Numbers: 115 pp
  • Files: TRIS
  • Created Date: Jul 12 1994 12:00AM