A STUDY OF THE BEARING CAPACITY OF DEEP FOUNDATIONS

HIGHWAY BRIDGES ARE FREQUENTLY LOCATED IN AREAS WHERE THE UPPER SOIL STRATA ARE TOO WEAK TO SUSTAIN HEAVY STRUCTURES AND WHERE THE LOADS HAVE TO BE TRANSFERRED TO SUITABLE LAYERS BY MEANS OF DEEP FOUNDATIONS. BY THE METHOD OF CONSTRUCTION, THERE ARE THREE GENERAL TYPES OF DEEP FOUNDATIONS' PILES, PIERS, CAISSONS. THE VARIETIES WITHIN EACH OF THESE GENERAL TYPES ARE VERY NUMEROUS BUT FROM THE POINT OF VIEW OF SOIL MECHANICS, THERE ARE ONLY TWO GENERAL TYPES OF DEEP FOUNDATIONS. THE FIRST TYPE MAY BE REPRESENTED BY A FOUNDATION INSTALLED BY SOME PROCESS OF EXCAVATION OR DRILLING WHICH DOES NOT INDUCE SIGNIFICANT CHANGES IN DENSITY OR STRUCTURE OF THE BEARING SOIL. PRACTICALLY ALL PIERS AND CAISSONS AND SOME PILES BELONG TO THIS TYPE. THE OTHER TYPE MAY BE REPRESENTED BY A DEEP FOUNDATION FORCED INTO THE GROUND BY DRIVING OR A SIMILAR OPERATION, WHICH INDUCES SIGNIFICANT CHANGES IN ADJACENT SOIL. MOST PILES BELONG TO THIS SECOND TYPE. THE SIGNIFICANT DIFFERENCE IN BEARING CAPACITIES OF DIFFERENT DEEP FOUNDATION TYPES UNDER OTHERWISE IDENTICAL CONDITIONS SHOULD BE RECOGNIZED FROM THE BEGINNING. IT IS THE OBJECT OF THIS RESEARCH PROJECT TO INVESTIGATE FUNDAMENTAL PARAMETERS INFLUENCING THE BEARING CAPACITY OF DEEP FOUNDATIONS, PARTICULARLY PILES AND PILE GROUPS, WITH THE FINAL AIM OF IMPROVING THE RATIONAL APPROACH TO DESIGN OF SUCH FOUNDATIONS. /AUTHOR/

  • Supplemental Notes:
    • Project B-189,253 PP,APP
  • Corporate Authors:

    University of Georgia, Experiment

    Georgia Experiment Station
    Experiment, GA  USA 
  • Authors:
    • Vesic, A S
  • Publication Date: 0

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Filing Info

  • Accession Number: 00231118
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Aug 15 2004 2:23AM