THE INFLUENCE OF CONFINING PRESSURE ON THE SHEAR STRENGTH OF COMPACTED ROCK FILL

Large-scale drained triaxial compression tests have been carried out on heavily compacted samples of different types of rockfill over a range of confining pressures. The Mohr failure envelopes show pronounced curvature, particularly at low stresses. An assessment has been made of the significance of this for the stability of rockfill slopes where generally the shear strength of the rockfill at low stresses is of major importance. It is concluded that in many instances rockfill embankments could be built with slopes much steeper than those currently adopted and still have an adequate factor of safety against stability failure. (Author/TRRL)

Media Info

  • Features: Figures; Photos; References; Tables;
  • Pagination: p. 353-367
  • Serial:
    • GEOTECHNIQUE
    • Volume: 30
    • Issue Number: 4
    • Publisher: Thomas Telford Limited
    • ISSN: 0016-8505

Subject/Index Terms

Filing Info

  • Accession Number: 00330861
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • Files: ITRD, TRIS
  • Created Date: Aug 15 1981 12:00AM