SOME EXPERIMENTS ON HOLLOW CYLINDER CLAY SPECIMENS

THIS INVESTIGATION WAS UNDERTAKEN TO STUDY THE HOLLOW CYLINDER BEHAVIOUR FOR PARTICULAR STRESS APPLICATIONS AND TO GAIN A BETTER UNDERSTANDING OF THE HOLLOW CYLINDER TEST. SOIL SPECIMENS WITH 60 MILLIMETER OUTSIDE- AND 35 MILLIMETER INSIDE DIAMETER, WERE USED AND ARE DESCRIBED IN THIS REPORT. UNDISTURBED CLAY SAMPLES WERE USED. BOTH SOLID AND HOLLOW CYLINDRICAL SPECIMENS WITH LUBRICATED END CONTACTS WERE TESTED. THE CLAY CYLINDERS WERE CONSOLIDATED HYDROSTATICALLY AND LOADED IN AXIAL COMPRESSION UNDER UNDRAINED CONDITION WITH PORE-WATER PRESSURE MEASUREMENT. FOR REFERENCE, SOLID CYLINDERS OF 35 AND 60 MILLIMETER DIAMETER OF THE SAME CLAY WERE ALSO TESTED. HOLLOW CYLINDER TESTS WERE PERFORMED WITH EITHER EQUAL OUTSIDE AND INSIDE CHAMBER PRESSURES OR CONSTANT VOLUME OF THE INSIDE CHAMBER. DURING CONSOLIDATION UNDER AN ALL-ROUND PRESSURE, THE RADIAL STRAIN WAS MUCH LARGER THAN THE CIRCUMFERENTIAL STRAIN. DURING AXIAL COMPRESSION UNDER UNDRAINED CONDITION, THE RADIAL EFFECTIVE STRESS IN THE CYLINDER WALL WAS FOUND TO BE GREATER THAN THE CIRCUMFERENTIAL EFFECTIVE STRESS. THE DEVIATOR STRESS AT FAILURE FOR THE HOLLOW CYLINDERS WAS MARGINALLY HIGHER THAN THE MAXIMUM DEVIATOR STRESS FOR THE SOLID SAMPLES. FORMULAE FOR STRAIN AND STRESS COMPUTATIONS IN HOLLOW CYLINDER SPECIMENS ARE INCLUDED IN THE REPORT.

  • Corporate Authors:

    Saertryck & Preliminaera Rapporter

    Banergaton 16
    Stockholm S-11526,   Sweden 
  • Authors:
    • Jamal, A K
  • Publication Date: 1972

Media Info

  • Features: Figures; Photos; Tables;
  • Pagination: 21 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00081082
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Report/Paper Numbers: No. 47 Intrm Rpt.
  • Files: ITRD, TRIS
  • Created Date: Apr 8 1975 12:00AM