STABILITY ANALYSES OF SOIL-FOUNDATION SYSTEMS' A DESIGN MANUAL BASED ON LOGARITHMICALLY SPIRALLED RUPTURE CURVES

THIS BOOK IS INTENDED AS A DESIGN MANUAL TO SERVE AS AN AID IN TEACHING AND LEARNING SOIL MECHANICS, FORNDATION ENGINEERING AND HYDRAULIC STRUCTURES ENGINEERING. IT INCLUDES THIRTEEN TABLES WHICH FACILITATE THE CARRYING OUT OF STABILITY ANALYSES OF SOIL-FOUNDATION-LOAD SYSTEMS, EARTH MASSES, EARTH SLOPES AND EARTH PRESSURES. THE STABILITY PROBLEM OF SOIL-FOUNDATION-LOAD SYSTEMS CONSTITUTES ONE OF THE BASIC AS WELL AS ONE OF THE MOST DIFFICULT PROBLEMS IN SOIL MECHANICS. SOIL DENSITIES IN PLACE MAY VARY FROM FOOT TO FOOT, THE EVALUATION OF SOIL UNDER LOAD CANNOT YET BE MADE WITH A PLAUSIBLE DEGREE OF ACCURACY, AND THE SOIL IS NOT AN IDEALLY ELASTEC MATERIAL FOLLOWING HOOKES LAW OF PROPORTIONALITY BETWEEN STRESS AND STRAIN. STABILITY ANALYSES OF SUCH PROBLEMS MUST BE BASED, THEREFORE, ON OBSERVED, NOT ARBITRARILY ASSUMED, FORMS OF RUPTURE CURVES. THE EXPERIMENTALLY OBTAINED RUPTURE SURFACE CURVES ARE DISCUSSED, AND IT IS SHOWN THAT THEY MAY BE ADEQUATELY REPRESENTED BY THE MATHEMATICAL CURVE OF A LOGARITHMIC SPIRAL. THE ADVANTAGE OF USING LOGARITHMIC SPIRALS AS THE RUPTURE SURFACE CURVE LIES IN THE FACT THAT ALL INCLINED SOIL REACTIONS ALONG THE RUPTURE SURFACE CURVE PASS THROUGH THE POLE OF THE SPIRAL, AND IN EQUILIBRIUM CALCULATIONS ONE DOES NOT NEED TO KNOW THE NATURE OF THE DISTRIBUTION OF THE REACTIONS ALONG THE RUPTURE SURFACE. STABILITY ANALYSES OF SOIL-FOUNDATION-LOAD SYSTEMS BASED ON LOGARITHMICALLY SPIRALLED RUPTURE SURFACE CURVES ARE EASY TO PERFORM.

  • Supplemental Notes:
    • Engineering RESEARCH PUB. NO 44,55 PP
  • Corporate Authors:

    Rutgers University, New Brunswick

    Edward J. Bloustein School of Planning and Public Policy
    33 Livingston Avenue
    New Brunswick, NJ  USA  08901
  • Authors:
    • Jumikis, A R
  • Publication Date: 1965

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Filing Info

  • Accession Number: 00234005
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Apr 27 1994 12:00AM