INVESTIGATION OF SOIL COMPACTION BY VIBRATION

LABORATORY INVESTIGATIONS AND SOIL COMPACTION TESTS SHOWED THAT THE RESULTS OBTAINED IN SOIL COMPACTION BY VIBRATION DEPEND PRIMARILY ON THE FOLLOWING FACTORS' /1/ THE STATE OF MOTION OF THE SOIL PARTICLES. INTERNAL FRICTION IS ELIMINATED, AND THE NECESSARY CONDITIONS ARE PRODUCED FOR EFFECTIVE REARRANGEMENT OF SOIL PARTICLES, /2/ THE PRESSURES GENERATED IN THE SOIL BY VIBRATORY COMPACTION. THESE PRESSURES CAN BE STATIC, AND ARE CAUSED BY THE WEIGHT OF THE SOIL ITSELF, AS WELL AS BY THE WEIGHT OF THE VIBRATORY COMPACTOR, OR DYNAMIC, IN THE FORM OF PRESSURE WAVES WHICH ARE DUE TO THE ACTION OF THE VIBRATORY COMPACTOR ON THE GROUND. THE EFFECT OF VIBRATION ON INTERNAL FRICTION IN SOILS OF VARIOUS TYPES WAS STUDIED IN LABORATORY TESTS BY MEANS OF VANE BORER MEASUREMENTS. LABORATORY COMPACTION TESTS WERE PERFORMED BY VIBRATION IN AN OPEN MOLD AND IN COMBINATION WITH PRESSURE APPLIED TO THE SURFACE OF THE SOIL SAMPLE. IMPACTS OF FALLING WEIGHTS ON THE GROUND SURFACE WERE STUDIED AND THE PRESSURE WAVES IN THE SOIL PRODUCED BY THE IMPACTS WERE RECORDED. COMPACTION TESTS WITH VIBRATING ROLLERS AND VIBRATING PLATE COMPACTORS IN COMBINATION WITH PRESSURE MEASUREMENTS AT DIFFERENT DEPTHS IN THE SOIL WERE MADE. THE TESTS WERE PARTLY PERFORMED WITH VIBRATORY COMPACTORS DIFFERING IN WEIGHT AND IN VIBRATION CHARACTERISTICS. RISK OF DAMAGE BY VIBRATORY COMPACTION TO NEIGHBORING BUILDINGS WAS STUDIED AND COMPACTION OF WATER- SATURATED SOILS BY INTERNAL VIBRATION WAS CONSIDERED. /CR/

  • Supplemental Notes:
    • No 34, 185 PP
  • Authors:
    • Forssblad, L
  • Publication Date: 0

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Filing Info

  • Accession Number: 00231108
  • Record Type: Publication
  • Source Agency: Am Concrete Inst Journal & Proceedings
  • Files: TRIS
  • Created Date: Aug 15 2004 1:52AM