IN SITU TEST FOR SOIL CREEP

THE IOWA BORE-HOLE SHEAR APPARATUS, MODIFIED TO MONITOR TIME DEFORMATIONAL BEHAVIOR IN SOILS, PRODUCED BOTH PRIMARY AND TERTIARY TYPE CREEP CURVES FROM IN-SITU TESTS ON SOILS, LABORATORY SIMPLE SHEAR TESTS PRODUCED COMPARABLE RESULTS. AN EXAMINATION OF THE CONCEPT OF STRESS LED TO THE SPECULATION THAT TRUE YIELD STRESS IS ONE WHICH PRODUCED SECONDARY OR LINEAR TYPE CREEP CURVES. THE SECONDARY CREEP CURVES ARE A TRANSITION BETWEEN PRIMARY AND TERTIARY BEHAVIOR. THE CREEP RATE FROM THE BORE HOLE CREEP TEST BECAME SO NEARLY LINEAR THAT THE PSEUDO-BINGHAM YIELD STRESS COMPUTED FROM THESE TESTS IS CLOSE TO THE TRUE STRESS. /AUTHOR/

  • Corporate Authors:

    Iowa State University, Ames

    Engineering Experiment Station
    Ames, IA  United States  50011
  • Authors:
    • Lohnes, R A
  • Publication Date: 1971-7

Subject/Index Terms

Filing Info

  • Accession Number: 00236274
  • Record Type: Publication
  • Report/Paper Numbers: 29 pp
  • Files: TRIS
  • Created Date: Jan 24 1972 12:00AM