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Analysis of Compressibility of Sensitive Soils

Nagaraj, TS and Murthy, BRS and Vatsala, A and Joshi, RC (1990) Analysis of Compressibility of Sensitive Soils. In: Journal of Geotechnical and Geoenvironmental Engineering, 116 (1). pp. 105-118.

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Sensitive soils, in general, are prone to mechanical disturbances while sampling, handling, and testing. This necessitates the prediction of true field behavior. The compressibility response of such soils is typical of having three zones, mechanistically explained as nonparticulate, transitional, and particulate. Such zoning has enabled the development of a simple method to predict the field compressibility response of the sample. The field compression curve with sigmact act as the most probable yield stress is considered to reflect 0% disturbance. By a comparison of experimentally determined sigmac and sigmact, it is possible to estimate the degree of sample disturbance. When the value of sigmac is closer to sigmact, the sampling disturbance approaches zero. As the value of sigmac reduces, the degree of sampling disturbance increases. The possibility of using this degree of sample disturbance from compressibility data to obtain other true properties from laboratory results of the sampled specimens has been examined.

Item Type: Journal Article
Publication: Journal of Geotechnical and Geoenvironmental Engineering
Publisher: American Society of Civil Engineers
Additional Information: Copyright of this article belongs to American Society of Civil Engineers.
Department/Centre: Division of Mechanical Sciences > Civil Engineering
Date Deposited: 07 Jan 2011 05:49
Last Modified: 07 Jan 2011 05:49
URI: http://eprints.iisc.ac.in/id/eprint/34873

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