BEHAVIOR OF SATURATED SAND UNDER IMPACT LOADS (PART 1) /IN JAPANESE/

PREVIOUSLY REPORTED FIELD TESTS HAVE SHOWN THAT LOOSE SANDS CAN BE EFFECTIVELY COMPACTED BY THE ELECTRIC SHOCK METHOD. HOWEVER, THE BEHAVIOR OF SANDS SUBJECTED TO IMPACT LOADS DUE TO ELECTRIC DISCHARGE HAS NOT BEEN FULLY CLARIFIED. TRIAXIAL COMPRESSION TESTS WERE PERFORMED ON SATURATED LOOSE SANDS. A NEW TYPE OF LOADING INSTRUMENT WAS USED TO APPLY CYCLIC IMPACT LOADS. WHEN SUBJECTED TO CYCLIC IMPACT LOADS IN THE UNDRAINED STATE, SATURATED LOOSE SANDS LIQUEFIED IN A MANNER TO THAT OBSERVED WITH VIBRATION LOADS. FINDINGS WERE AS FOLLOWS: (1) AS THE IMPACT WEIGHTS INCREASE, THE NUMBER OF IMPACT STRESSES ACTING WITHIN THE SAMPLES DECREASES TO CAUSE LIQUEFACTION OF THE SATURATED LOOSE SAND UNDER THE SAME EXPERIMENTAL CONDITIONS. (2) A MINIMUM IMPACT WEIGHT IS NEEDED TO CAUSE LIQUEFACTION OF THE SATURATED LOOSE SAND. (3) EVEN UNDER THE SAME CONDITIONS THE NUMBER OF IMPACT STRESSES REQUIRED FOR LIQUEFACTION DIFFERS WITH DIFFERENT SANDS. /AUTHOR/

  • Supplemental Notes:
    • Vol 18, pp 135-141, 10 FIG, 3 TAB
  • Corporate Authors:

    Kajima Inst Constr Tech /Japan

    ,    
  • Authors:
    • Morikuni, M
    • YAMADA, I
  • Publication Date: 1969

Subject/Index Terms

Filing Info

  • Accession Number: 00233209
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Jan 12 1972 12:00AM