CONFERENCE ON SOIL MECHANICS. SOIL HYDRAULIC. THE L.P.C. PIEZOMETER - TESTS AND PERFORMANCE /IN FRENCH/

A DESCRIPTION IS GIVEN OF THE L.P.C. PIEZOMETER FOR THE IN-SITU MEASUREMENT OF PORE PRESSURE OF LOW-PERMEABILITY SOILS, THE STRENGTH AND EASE OF OPERATION OF THE APPARATUS ARE EMPHASIZED. THE PLACING OF A PROBE BY JACKING IN A HIGHLY PLASTIC CLAY TAKES APPROXIMATELY THREE HOURS WITH A TWO-MAN TEAM. STANDARD MEASUREMENTS TAKE HALF AN HOUR. READINGS ARE TAKEN WITH AN ABSOLUTE PRECISION, WHICH REPRESENTS A RELATIVE ERROR OF THE ORDER OF TWO PER CENT FOR STANDARD MEASUREMENTS. THE SENSITIVITY OF THE APPARATUS DEPENDS ON THE VOLUMETRIC COEFFICIENT OF THE WHOLE CIRCUIT AND IS, THEREFORE, DIFFICULT TO QUANTIFY. MENTION IS MADE OF THE DIFFICULTIES OF TESTING APPARATUS FOR MEASURING IN-SITU PORE PRESSURE. /LCPC/RRL/

  • Supplemental Notes:
    • 10 Pp, 7 FiG, 3 REF
  • Corporate Authors:

    Equipment Ministry /France

    ,    

    Laboratoire Central des Ponts et Chausees (LCPC)

    Boulevard Lefebvre 58
    Paris Cedex 15,   France  F-75732
  • Authors:
    • Peignaud, M
  • Publication Date: 1968-11

Subject/Index Terms

Filing Info

  • Accession Number: 00234655
  • Record Type: Publication
  • Source Agency: Road Research Laboratory /UK
  • Files: TRIS
  • Created Date: Oct 13 1970 12:00AM