EVALUATION OF COEFFICIENTS OF SUBGRADE REACTION

THE THEORIES OF VERTICAL AND HORIZONTAL SUBGRADE REACTION ARE DEVELOPED AND REVIEWED. THEY ARE BASED ON THE SIMPLIFYING ASSUMPTIONS THAT THE SUBGRADE OBEYS HOOKE'S LAW, AND THAT THE SUBGRADE REACTION ON THE BASE OF A RIGID CENTRALLY LOADED PLATE RESTING ON THE HORIZONTAL SURFACE OF THE SUBGRADE HAS THE SAME VALUE AT EVERY POINT OF THE BASE. THE COEFFICIENTS OF SUBGRADE REACTION MUST BE ASSIGNED VALUES COMPATIBLE WITH THE DEFORMATION CHARACTERISTICS OF THE SUBGRADE AND THE DIMENSIONS OF THE LOADED AREA. FACTORS WHICH DETERMINE THE VALUE OF THE COEFFICIENTS OF BOTH VERTICAL AND HORIZONTAL SUBGRADE REACTION OF COHESIONLESS SAND AND STIFF CLAY ARE DISCUSSED, AND NUMERICAL VALUES PROPOSED FOR THE CONSTANTS WHICH APPEAR IN THE EQUATIONS DEFINING THESE COEFFICIENTS. SOME PRACTICAL APPLICATIONS OF THE THEORIES OF SUBGRADE REACTION ARE REVIEWED AS APPLIED TO THE COMPUTATION OF STRESSES IN CONTINUOUS FOOTINGS ACTED UPON BY CONCENTRATED LOADS, OR IN PILES THAT ARE INTENDED TO TRANSFER HORIZONTAL LOAD ONTO THE SUBGRADE.RULES ARE PRESENTED FOR ADOPTING THE VALUES OF THE COEFFICIENT REACTION TO THE ELASTIC PROPERTIES OF THE SUBGRADE AND TO THE DIMENSIONS OF THE AREAS ACTED UPON BY THE SUBGRADE REACTION.

  • Availability:
  • Supplemental Notes:
    • Vol 5, No 4, PP 297-326, 14 FIG, 4 TAB, 23 REF
  • Authors:
    • Terzaghi, K
  • Publication Date: 1955-12

Media Info

  • Serial:
    • GEOTECHNIQUE
    • Publisher: Thomas Telford Limited
    • ISSN: 0016-8505

Subject/Index Terms

Filing Info

  • Accession Number: 00234416
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Dec 9 1994 12:00AM