SKIN FRICTION ON MODEL PILES IN SAND

THE TEST SERIES AS A WHOLE SEEMS TO SUGGEST THAT A RELEVANT PROCEDURE FOR DETERMINING THE MINIMUM BEARING CAPACITY OF PILES WITH NEGATIVE FRICTION, WOULD BE A LOADING TEST IN SITU, IN WHICH THE PILE IS FIRST LOADED TO ULTIMATE PULLING CAPACITY AND THEN TO SECONDARY COMPRESSION CAPACITY. THIS MIGHT ALLOW AN ESTIMATE OF THE REDUCED BEARING CAPACITY IN COMPRESSION AND WITH NEGATIVE FRICTION. THE MODEL TESTS HAVE SHOWN THAT A NUMBER OF PILE MANTLE BEARING CAPACITY TYPES MAY BE DISTINGUISHED. THIS CLASSIFICATION FOLLOWS THE TYPE AND SEQUENCE OF LOADING. IT IS IMPORTANT WHETHER THE WORKING LOAD ON THE PILE IS APPLIED DIRECTLY AFTER THE PILE IS PLACED IN THE SOIL, OR AFTER THE PILE HAS BEEN SUBJECT TO FORCES CAUSING SKIN FRICTION STRESSES OF OPPOSITE DIRECTION TO THAT REQUIRED IN THE WORKING STATE. THE RATIOS BETWEEN THE DIFFERENT BEARING CAPACITIES ARE NOT CONSTANT BUT DEPENDENT AT LEAST ON THE DENSITY OF THE SOIL. /AUTHOR/

  • Supplemental Notes:
    • Bulletin 25, PP 13-48
  • Corporate Authors:

    Danish Geotechnical Institute

    1 Maglebjergvej
    DK-2800 Lyngby,   Denmark 
  • Authors:
    • Mazurkiewicz, B K
  • Publication Date: 0

Subject/Index Terms

Filing Info

  • Accession Number: 00231281
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Aug 15 2004 2:24AM