Effect of fines on pore pressure development during cyclic loading

Balreddy, MS and Dinesh, SV and Sitharam, TG (2018) Effect of fines on pore pressure development during cyclic loading. [Book Chapter]

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Abstract

Earthquake is one of the natural calamities that occur on large geographical area. During earthquakes, liquefaction of saturated soil deposit is a major cause for failure of various infrastructure as well as lifeline facilities. The cause for liquefaction is the build-up of excess hydrostatic pressure due to the application of cyclic shear stresses induced during ground shaking. From the literature review, it is understood that the mechanism of pore pressure generation of sand and sand–fines mixtures is still not clear and requires further investigation/research. In this paper, a series of stress-controlled cyclic triaxial undrained shear tests were conducted on reconstituted sample of sand–fines mixtures for evaluating and understanding the pore pressure build-up in soils. Sand was procured from Cauvery river bed, Karnataka, and locally available low plasticity clay fines were used to prepare sand–fines mixtures. The results indicate that the presence of fines reduces the pore pressure build-up when compared to clean sand.

Item Type:	Book Chapter
Publication:	Lecture Notes in Civil Engineering
Publisher:	Springer
Additional Information:	The copyright for this article belongs to Springer.
Keywords:	Earthquakes; Hydrostatic pressure; Liquefaction; Mixtures; Pore pressure; Shear stress; Soil liquefaction, Cyclic shear stress; Geographical area; Literature reviews; Pore pressure development; Pore-pressure generation; Reconstituted sample; Relative density; Saturated soil deposits, Sand
Department/Centre:	Division of Mechanical Sciences > Civil Engineering
Date Deposited:	28 Nov 2022 06:50
Last Modified:	28 Nov 2022 06:50
URI:	https://eprints.iisc.ac.in/id/eprint/78019

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