INITIAL AND RESIDUAL SHEAR STRENGTH OF HARD ROCKS

SPECIMENS OF SEVERAL TYPES OF ROCK WERE TESTED IN A DIRECT SHEARING DEVICE UNDER APPLICATION OF VARIOUS NORMAL STRESSES AND WERE SHEARED UNTIL LARGE DEFORMATION TOOK PLACE. DATA WERE OBTAINED ON CHANGES IN STRENGTH DEPENDING ON NORMAL STRESSES AND ON THE SHEAR DEFORMATIONS. AFTER HIGH INITIAL PEAK STRENGTHS, OBTAINED AT RELATIVELY SMALL DEFORMATIONS, THE STRENGTHS ABRUPTLY DECREASE WITH INCREASE OF DEFORMATION UNTIL, AT LARGE DEFORMATIONS, RESIDUAL STRENGTHS ARE FOUND. IT WAS NOTED THAT VARIOUS KINDS OF ROCK BEHAVE DIFFERENTLY WITH RESPECT TO SHEARING STRENGTH. THE TEST RESULTS OBTAINED GIVE A CLEARER VIEW OF THE REAL VALUES OF SHEARING STRENGTH FOR SOME SURFACES AND ZONES OF DISCONTINUITY THAT ARE OFTEN ENCOUNTERED IN VARIOUS GEOLOGICAL COMPLEXES. /AUTHOR/

  • Availability:
  • Supplemental Notes:
    • Vol 17, No 2, PP 145-160
  • Corporate Authors:

    Road Research Laboratory /UK

    ,    
  • Authors:
    • Krsmanovic, D
  • Publication Date: 0

Media Info

  • Serial:
    • GEOTECHNIQUE
    • Volume: 4
    • Issue Number: 3
    • Publisher: Thomas Telford Limited
    • ISSN: 0016-8505

Subject/Index Terms

Filing Info

  • Accession Number: 00228957
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Aug 15 2004 2:37AM