DEEP CONCRETE PILE FOUNDATIONS SUPPORTED BY A STIFF LAYER AT THE HEAD

IT IS FREQUENTLY NECESSARY TO SINK DEEP PILES THROUGH SOFT SOIL WHICH HAS A STIFF LAYER OF APPRECIABLE DEPTH ON TOP. SOMETIMES IT IS NECESSARY TO PLACE SUPPORTING FILL ON TOP OF THE SOFT SOIL BEFORE SINKING DEEP PILES TO THE HARD LAYER IN ORDER TO ERECT A STRUCTURE. IN BOTH CASES THIS TOP LAYER IS AN IMPORTANT FACTOR CONTRIBUTING TO THE STABILITY OF THE PILE. IN THE SECOND CASE ALLUVIAL EFFECTS COULD MAKE CONDITIONS MORE DIFFICULT. A STUDY OF THE STABILITY OF PILES IN THE CASE DESCRIBED IS PRESENTED. EXPRESSIONS FOR DETERMINING STRESSES CREATED IN THE DIFFERENT PARTS OF THE FOUNDATION, ARE OBTAINED BY THE USE OF THE SOIL REACTION THEORY. THERE IS DISCUSSION OF THE RESULTS OBTAINED, ESPECIALLY THE RELATIVE DIMENSIONS OF THE PILE AND THE UPPER LAYER. SOME COMMENTS ARE INCLUDED AS TO WHEN THE STABILIZING EFFECT OF THE UPPER LAYER SHOULD NOT BE TAKEN INTO ACCOUNT, AS IT COULD SOMETIMES BE A FACTOR WHICH WORSENS CONDITIONS. /LTE/LCPC/RRL/

  • Supplemental Notes:
    • No 17, 7 Pp, 1 FIG
  • Corporate Authors:

    Lab Del Transporte Y Mecanica Del Suele

    ,    
  • Authors:
    • Escario, V
  • Publication Date: 0

Subject/Index Terms

Filing Info

  • Accession Number: 00230804
  • Record Type: Publication
  • Source Agency: Road Research Laboratory /UK
  • Files: TRIS
  • Created Date: Aug 15 2004 2:22AM