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)
-
Availability:
- Find a library where document is available. Order URL: http://worldcat.org/issn/00168505
-
Corporate Authors:
Institution of Civil Engineers
One Great George Street, Westminster
London, United Kingdom SW1P 3AA -
Authors:
- CHARLES, J A
- WATTS, K S
- Publication Date: 1980-12
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
- TRT Terms: Coefficients; Compaction; Compression; Compression tests; Drained soil; Embankments; Failure; Highway grades; Mohr circles; Pressure; Rockfill dams; Rockfills; Safety; Shear strength; Slope stability; Slopes; Strength of materials; Stresses; Tests; Triaxial shear tests
- Uncontrolled Terms: Triaxial compression
- Old TRIS Terms: Mohr envelope; Mohr failure theory
- ITRD Terms: 3686: Compaction; 5781: Drained soil; 2801: Embankment; 5520: Failure; 2806: Gradient; 5412: Pressure; 3327: Rock fill dam; 5504: Safety coefficient; 5531: Shear; 5783: Slope stability; 5544: Strength (mater); 5575: Stress (in material); 6255: Test
- Subject Areas: Geotechnology; Highways; Safety and Human Factors; I43: Rock Mechanics;
Filing Info
- Accession Number: 00330861
- Record Type: Publication
- Source Agency: Transport Research Laboratory
- Files: ITRD, TRIS
- Created Date: Aug 15 1981 12:00AM