INSTRUMENTATION FOR NEGATIVE SKIN FRICTION STUDIES ON LONG PILES IN MARINE CLAY ON THE AUTOROUTE DU QUEBEC

THE OVERPASS AT HIGHWAY 41 ON THE QUEBEC AUTOROYT AT BERTHIERVILLE WILL BE SUPPORTED BY 39-IN. DIAMETER COMPOSITE AND BEARING PILES FOUNDED ON BEDROCK 270 FT BELOW THE GROUND SURFACE. THE IMPOSED LOADS FROM NEGATIVE SKIN FRICTION CAUSED BY THE CONSOLIDATION OF THE MARINE CLAY SUB-SOILS MAY REACH TWO-THIRDS OF THE DESIGN CAPACITY OF THE PILE. TO STUDY THE PHENOMENON OF NEGATIVE SKIN FRICTION, TWO PROTOTYPE PILES WERE INSTRUMENTED AND A FLOATING TEST PILE INSTALLED. THE INSTRUMENTATION INCLUDED SETTLEMENT GAUGES, PIEZOMETERS, DEFORMATION GAUGES, STRAIN METERS, THERMOCOUPLES AND A SLOPE INCLINOMETER TUBE. THE DESIGN DETAILS OF THE INSTRUMENTATION ARE GIVEN AND THEIR PERFORMANCE DISCUSSED. /RATAOC/

  • Supplemental Notes:
    • Rp 356, 21 PP, 10 FIG, 1 TAB, 6 REF
  • Corporate Authors:

    Nrc Div Bldg Research /Can

    ,    
  • Authors:
    • Bozozuk, M
    • Jarrett, P M
  • Publication Date: 1968-4

Subject/Index Terms

Filing Info

  • Accession Number: 00214658
  • Record Type: Publication
  • Source Agency: Roads & Transportation Assoc /Canada
  • Files: TRIS
  • Created Date: Sep 13 1971 12:00AM