DISCUSSION OF CALCULATED AND OBSERVED VIBRATION AMPLITUDES

THE AUTHOR IS CONGRATULATED FOR SUGGESTING THAT FOR TWO SITES, THE CONTACT PRESSURE DISTRIBUTION USED IN COMPUTATION VARIES FROM PARABOLIC TO RIGID BASE DEPENDING UPON THE BOUNDARY CONDITION OF LOADING. THE DISCUSSER MAKES AN ATTEMPT TO EXPLAIN THIS OBSERVATION WITH THE USE OF PREVIOUS WORK DONE WITH THE ELASTIC HALF-SPACE THEORY. THE RESULTS PRESENTED BY THE AUTHOR ARE ANALYZED. IT IS FOUND THAT THE ANALYTICAL CONTACT PRESSURE DISTRIBUTIONS ALONG WITH THE CORRESPONDING VALUES USED IN THE ELASTIC HALF-SPACE THEORY ARE ONLY INTERMEDIATE PARAMETERS FOR PREDICTING THE PEAK AMPLITUDE. IN THREE SITES TESTED THE PREDICTION OF THE PEAK AMPLITUDE FROM A SINGLE FIELD VIBRATION TEST APPEARS TO BE SATISFACTORY. IT MAY NOT BE CORRECT TO ATTRIBUTE THE PARTICULAR CONTACT PRESSURE DISTRIBUTION FOR A GIVEN SITE TO ANOTHER. THERE MAY BE MANY MORE TYPES OF CONTACT PRESSURE DISTRIBUTION THAT SATISFY THE ELASTIC HALF-SPACE THEORY THAN THE EIGHT DISTRIBUTIONS CONSIDERED IN THE DISCUSSION.

  • Supplemental Notes:
    • Vol 97, No SM8, PP 1131-1134, 2 TAB, 3 REF
  • Authors:
    • Sankaran, K S
    • Subrahmanyam, M S
  • Publication Date: 1971-8

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Filing Info

  • Accession Number: 00236232
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Nov 15 1971 12:00AM