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Behavior of marine sand-clay mixtures under static and cyclic triaxial shear

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Title Behavior of marine sand-clay mixtures under static and cyclic triaxial shear
 
Creator PRAKASHA, KS
CHANDRASEKARAN, VS
 
Description In situ Indian Marine Soils Occur as mixtures of sand and clay in widely varying proportions. Their engineering behavior has not been comprehensively and systematically studied. An experimental program on reconstituted Indian marine soils having different proportions of sand and clay was undertaken. The Study comprised one dimensional consolidation tests and static and cyclic triaxial tests. This paper presents the results of this study and offers an interpretation of the behavior based on effective void ratio (EVR), a new parameter defined as the ratio of Volume of voids to the volume of effective soil fraction. Experimental results indicate a roughly unique EVR-log sigma(vc)' relationship and normalizability of undrained static behavior. Some predictions from the stress history and normalized soil engineering properties (SHANSEP) approach with EVR as basis, in close agreement with experimental data, have been presented. Hence EVR is proposed as an appropriate parameter for describing and predicting the behavior of sand-clay mixtures. The development of pore pressures and strains during cyclic loading is dictated by a combination of EVR and cyclic stress ratio for sandy clays and by a combination of void ratio and cyclic stress ratio for clayey sands.
 
Publisher ASCE-AMER SOC CIVIL ENGINEERS
 
Date 2011-07-18T11:04:32Z
2011-12-26T12:50:34Z
2011-12-27T05:36:04Z
2011-07-18T11:04:32Z
2011-12-26T12:50:34Z
2011-12-27T05:36:04Z
2005
 
Type Article
 
Identifier JOURNAL OF GEOTECHNICAL AND GEOENVIRONMENTAL ENGINEERING, 131(2), 213-222
1090-0241
http://dx.doi.org/10.1061/(ASCE)1090-0241(2005)131:2(213)
http://dspace.library.iitb.ac.in/xmlui/handle/10054/4892
http://hdl.handle.net/10054/4892
 
Language en