Influence of Sodium Chloride on Index Properties and Residual Shear Strength of Natural Soil and Pure Minerals
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Published:2004
G. R. Tuladhar, H. Marui, B. Tiwari, 2004. "Influence of Sodium Chloride on Index Properties and Residual Shear Strength of Natural Soil and Pure Minerals", Advances in geotechnical engineering: The Skempton conference: Proceedings of a three day conference on advances in geotechnical engineering, organised by the Institution of Civil Engineers and held at the Royal Geographical Society, London, UK, on 29–31 March 2004
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This paper deals with the influence of NaCl concentration and mineralogical content on the residual shear strength of soil from a mudstone dominated landslide region. Soil samples were collected from the sliding surface and from intact rock in the landslide area. Samples prepared from powdered, intact rock showed values of residual ɸ about 40% higher than those for samples taken from the sliding surface. Similarly, higher electrical conductivity was observed in the intact rock samples compared with the sliding surface soil. The intact rock showed a reduction in the shear strength when leached with distilled water. This research provides a useful insight into the post failure behaviour of soils comprising NaCl rich pore water and a variety of mineral types.
Background and objectives
Geological and mineralogical background of the study area
Sample collection and preparation
Equipment
Testing procedure
Discussion
Conclusion
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