OSCILLATION OF PILES - SOME MARINE EXPERIENCE

AN INNOVATION IN THE CONSTRUCTION OF CUT-OFF WALLS IS DESCRIBED. THE NEW TYPE OF CONTINUING DIAPHRAGM WALL IS CALLED "PAROI MOULEE PLASTIQUE." IT'S ECONOMY IS DUE TO THE RE-USE OF ALL THE BENTONITE STABILIZING FLUID FROM THE TRENCH, WHICH IS TRANSFORMED INTO A CONSTRUCTION MATERIAL OF ADEQUATE STRUCTURAL STRENGTH BY ADDING TO EVERY CUBIC METER OF SLURRY ABOUT 150 KG OF CEMENT TYPE CLK 325, AND SOME RETARDER OF THE LIGNOSULFITE TYPE. THE INVENTORS CLAIM THAT THIS NEW TYPE OF IMPERMEABLE CUT-OFF WALL WOULD RESPOND WITH ELASTIC DEFORMATION TO EXCESSIVE STRESSES AND WOULD NOT DEVELOP CRACKS. A COMPARISON WITH HYDRATION PRODUCTS OF VARIOUS CEMENTS AND PLASTER OF PARIS INDICATED SIMILARITIES OF MICROSTRUCTURE. IT SEEMED THAT THE BENTONITE/CEMENT SLURRY PROVIDED THE PERFECT MEDIUM FOR THE GROWTH OF STABLE CLUSTERS OF CALCIUM SILICATE HYDRATE, WHICH APPARENTLY PREVENT THE STACKS OF FLAT, PLATE-LIKE CLAY PARTICLES WITH WET SURFACES FROM SLIDING APART. PERHAPS THE MOST REMARKABLE FACT IS THAT THE IN SITU STRENGTH OF THE CUT-OFF WALL MATERIAL WAS UP TO 30 KG/SQ CM AT 28 DAYS.

  • Corporate Authors:

    Ground Engineering

    7 Ongar Road
    Brentwood CM15 9AU,   England 
  • Authors:
    • SAINSBURY, R N
    • Mowlem, J
  • Publication Date: 1973-5

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Filing Info

  • Accession Number: 00236706
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Jul 16 1974 12:00AM