BORED PILES WITH ENLARGED BASES IN LONDON CLAY

AN INVESTIGATION ON THE BEARING CAPACITY OF LARGE BORED PILES IN LONDON CLAY WAS MADE IN WHICH LOAD CELLS WERE USED TO MEASURE THE LOADS CARRIED ON THE PILE BASES, SOME OF WHICH WERE ENLARGED. BOTH INCREMENTAL LOADING AND CONSTANT RATE OF PENETRATION TESTS WERE MADE. THE MAXIMUM RESISTANCE DUE TO SHAFT FRICTION WAS REACHED AT A SETTLEMENT LESS THAN 1 PER CENT OF THE SHAFT DIAMETER AND THE MAXIMUM BASE RESISTANCE AT A SETTLEMENT IN THE ORDER OF 10 PER CENT OF THE BASE DIAMETER. AT SMALL SETTLEMENTS THE GREATER PROPORTION OF THE LOAD WAS CARRIED BY SHAFT FRICTION AND A DESIGN METHOD INTRODUCING SEPARATE LOAD FACTORS FOR THE SHAFT AND THE BASE IS SUGGESTED. /LCPC/RRL/A/

Media Info

  • Serial:
    • Issue Number: 0

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Filing Info

  • Accession Number: 00231933
  • Record Type: Publication
  • Source Agency: Road Research Laboratory /UK
  • Files: TRIS
  • Created Date: Aug 15 2004 2:42AM