DISCUSSION OF SHEET-PILE ANALYSIS BY DISTRIBUTION THEORY

A NEW MATHEMATICAL APPROACH WAS PRESENTED FOR THE SOLUTION OF A CLASSICAL IDEALIZATION FOR THE ANALYSIS OF ANCHORED BULKHEADS. MR. RAUHUT ANALYZED THREE BULKHEADS OF VARYING PENETRATION DEPTH WHOSE MOMENT DIAGRAMS ARE DEPICTED, UTILIZING A COMPUTER PROGRAM THEORETICALLY IDENTICAL TO PROGRAM BLKHD 6. RESULTS AGREED WITH THE AUTHORS' RESULTS AFTER CORRECTION OF AN ALGEBRAIC ERROR WHICH IS DISCUSSED. THE CORRECTED EQUATIONS ARE PRESENTED. BASED ON THE CLOSE AGREEMENT BETWEEN THE CALCULATED RESULTS OF THE AUTHORS AND THAT OF THE COMPUTER PROGRAMS KNOWN TO BE ACCURATE WITHIN A FEW PERCENT, THE WRITER IS OF THE OPINION THAT THE METHOD PRESENTED, AS CORRECTED, IS ACCURATE AND PROVIDES A RELATIVELY SIMPLE METHOD FOR ANALYSIS OF THE ANCHORED BULKHEAD IDEALIZATION PROPOSED. IT IS POINTED OUT THAT ACTUAL SOIL RESPONSE TO WALL MOVEMENT AT A POINT BELOW THE DREDGE LINE IS COMPLEX AND HEAVILY DEPENDENT ON: (1) DEVELOPMENT OF WALL FRICTION, WHICH IS A FUNCTION OF THE STRAIN ALONG THE SOIL-WALL INTERFACE, AND INDIRECTLY DEPENDENT ON THE WALL DISPLACEMENT, (2) LENGTH OF 'POTENTIAL SLIP PATH' IN THE RESISTING SOIL MASS WHICH IS ITSELF DEPENDENT ON DEPTH BELOW THE DREDGE LINE, (3) THE EXISTENCE OF HIGH PRESSURES IN THE SOIL MASS NEAR THE DREDGE LINE. IT IS POINTED OUT THAT ROWE HAS BEEN WORKING TO DEVELOP 'STRESS-DILATANCY RELATIONS' FOR A SOIL MASS UNDERLOAD. HIS WORK SHOWS PROMISE OF SIGNIFICANT ADVANCEMENT OF SOIL MECHANICS AND A MORE FUNDAMENTAL IDEALIZATION THAN THOSE BASED ON SUBGRADE REACTION. P. W. ROWE DISCUSSES THE WRITER'S PUBLISHED WORK ON SHEET PILE WALL ANALYSIS BY SAYING THE AUTHORS HAVE FAILED TO TAKE ACCOUNT OF THE UNITS OF MEASUREMENT RESULTING IN ERRONEOUS STATEMENTS. THE CORRECT REFERENCE TO STIFFNESS MODULI IS DISCUSSED. A REAL ADVANCE IN SHEET PILE DESIGN AWAITS THE USE OF AVAILABLE ADVANCED SIGHT INVESTIGATION TECHNIQUES, EXTENDED USE OF EXISTING KNOWLEDGE AND MEASUREMENTS OF FIELD PERFORMANCE. VARIATIONS IN THE METHODS OF CONDUCTING COMPLEX CALCULATIONS DO NOT ASSIST A DESIGNER, AND THE WRITER'S THEORETICAL SOLUTIONS PRODUCED IN SIMPLE CHART FORM WERE INTENDED MAINLY AS A GUIDE TO THE BASIC PRINCIPLES AND THE SOURCE OF ANY DIFFERENCE BETWEEN THEORY, MODEL AND FIELD BEHAVIOR. REFERENCES: SHEET-PILE ANALYSIS BY DISTRIBUTION THEORY, DAFALLA A. TURABI, ARPAD BALLA, ASCE PROC. PAPER 5769, JANUARY, 1968.

  • Supplemental Notes:
    • Vol 95, No SM2, PP 634-640, 1 FIG, 13 REF
  • Corporate Authors:

    N/A

    ,   United States 
  • Authors:
    • Rauhut, J B
    • ROWE, P W
  • Publication Date: 0

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  • Accession Number: 00232683
  • Record Type: Publication
  • Report/Paper Numbers: No SM5, Proc Paper 490
  • Files: TRIS
  • Created Date: Aug 15 2004 2:44AM