A NEW DEVICE FOR MEASURING VOLUME CHANGES AND PRESSURES IN TRIAXIAL TESTS ON SOILS

A DEVICE HAS RECENTLY BEEN DEVELOPED WHICH IMPROVES THE CONVENIENCE AND ACCURACY OF VOLUME CHANGE AND PRESSURE MEASUREMENTS FOR CONSOLIDATED UNDRAINED TRIAXIAL TESTS ON SATURATED SOILS. THE ACCURACY OF VOLUME MEASUREMENTS IS IMPROVED BY REVERSING THE DIRECTION OF MOVEMENT OF THE EFFLUENT WHEN THE LIMIT OF THE VOLUME CHANGE SCALE IS REACHED, THUS ELIMINATING THE NECESSITY FOR RESETTING THE VOLUME CHANGE READING WHEN MEASURING LARGE VOLUMES. THE ACCURACY OF PRESSURE MEASUREMENTS IS IMPROVED BY USING THE SAME SENSITIVE ELECTRICAL PRESSURE TRANSDUCER FOR MEASURING ALL OF THE PRESSURES USED FOR TESTING, THUS MINIMIZING ERRORS DUE TO CALIBRATION AND ZERO SHIFT. CONVENIENCE OF USE IS AFFORDED BY SIMPLICITY OF DESIGN AND OPERATIONAL TECHNIQUE. CONSISTING ALMOST ENTIRELY OF COMMERCIALLY AVAILABLE PARTS, THE DEVICE MAY BE BUILT FOR ABOUT $65 IN ADDITION TO THE COST OF THE PRESSURE TRANSDUCER. /AUTHOR/

  • Corporate Authors:

    University of California, Berkeley

    Soil Mechanics and Bituminous Materials Research Laboratory
    Berkeley, CA  United States 
  • Authors:
    • CHAN, C K
    • Duncan, J M
  • Publication Date: 1966-7

Subject/Index Terms

Filing Info

  • Accession Number: 00233993
  • Record Type: Publication
  • Report/Paper Numbers: 5 pp
  • Files: TRIS
  • Created Date: Apr 13 1994 12:00AM