THE SHEARING RESISTANCE OF SATURATED CLAYS
The shearing resistance of saturated clays has to date been considered to arise either from the frictional resistance at particle contacts or from the viscosity of the pore fluid in the event of particle contact being absent. The estimates presented indicate that, while the charged nature of the clay particles influences the viscosity of the fluid surrounding them (as much as 160 times) the increased viscosity imparts a resistance to shear far less than that obtained experimentally. Thus the contribution of viscous resistance to shear strength is negligible. This indicates that a parallel plate (non-contact) model, while eminently suitable for explaining volume-change behaviour, does not adequately account for the shearing resistance of saturated clays. It can thus be inferred that edge-face linkages or mineral-mineral contacts are inevitable in a soil system possessing considerable shear strength; further, these linkages explain the non-viscous behaviour of the system at water contents below liquid limit. (TRRL)
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/issn/00168505
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Corporate Authors:
Institution of Civil Engineers
One Great George Street, Westminster
London, United Kingdom SW1P 3AA -
Authors:
- Allam, M M
- Sridharan, A
- Publication Date: 1984-3
Media Info
- Features: References; Tables;
- Pagination: p. 119-122
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Serial:
- GEOTECHNIQUE
- Volume: 34
- Issue Number: 1
- Publisher: Thomas Telford Limited
- ISSN: 0016-8505
Subject/Index Terms
- TRT Terms: Clay; Network links; Particles; Saturated soils; Shear strength; Viscosity
- Uncontrolled Terms: Linkages
- ITRD Terms: 4177: Clay; 5907: Degree of saturation (mater); 6205: Model (not math); 5531: Shear; 5544: Strength (mater); 5936: Viscosity
- Subject Areas: Geotechnology; Highways;
Filing Info
- Accession Number: 00390315
- Record Type: Publication
- Source Agency: Transport Research Laboratory
- Files: ITRD, TRIS
- Created Date: Nov 30 1984 12:00AM