THE DESIGN OF PILES AND CYLINDER FOUNDATIONS IN STIFF, FISSURED CLAY

TESTS ARE DESCRIBED WHICH WERE CARRIED OUT IN THE CITY OF LONDON TO DETERMINE MEANS OF ESTIMATING THE SAFE WORKING LOADS ON PILES AND FOUNDATION CYCLINDERS IN A STIFF FISSURED CLAY. THE TESTS CONSISTED OF LOADING A 4.5-FT-DIAM. BEARING PLATE AND A 6-FT-LONG SECTION OF 6.0-FT EXTERNAL DIAMETER GROUTED LINING TO FAILURE AT FOUR LEVELS IN THE LONDON CLAY. FROM THE RESULTS, DESIGN CRITERIA FOR PILES ARE ESTABLISHED IN TERMS OF THE LOAD-SETTLEMENT RELATIONSHIPS OF THE SHAFT AND BASE ARE SHOWN TO BE MARKEDLY DIFFERENT; EMPIRICAL FORMULAE ARE ESTABLISHED TO EXPRESS THESE RELATIONSHIPS AND THE BEHAVIOUR OF THE PILE AS A WHOLE IN TERMS OF THE ELASTIC PROPERTIES OF THE CLAY AND THE PILE DIMENSIONS. THE ULTIMATE LOAD IS SHOWN TO BE A FUNCTION OF THE LOWER LIMIT OF THE UNDRAINED SHEAR STRENGTH. /LCPC/RRL/A/

Subject/Index Terms

Filing Info

  • Accession Number: 00234650
  • Record Type: Publication
  • Source Agency: Road Research Laboratory /UK
  • Files: TRIS
  • Created Date: Sep 14 1970 12:00AM