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Geotechnical Centrifuge Modeling of Chloride Diffusion through Soils

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Title Geotechnical Centrifuge Modeling of Chloride Diffusion through Soils
 
Creator KUMAR, RP
SINGH, DN
 
Subject Soils
Geotechnical centrifuge
Finite element modeling
Diffusion
Contaminant
Reynolds number
Peclet number
MONITORING CONTAMINANT TRANSPORT
CLAY
METHODOLOGY
 
Description Geotechnical centrifuge modeling provides a means of accelerating the transport of contaminants through a soil matrix. Contaminant transport mechanisms occurring in the geotechnical centrifuge model can be used to verify various mathematical and analytical models. This technical note presents modeling of chloride (Cl) diffusion through soils in a geotechnical centrifuge. Acceleration level, N, of 100 g was used for centrifuge modeling of Cl migration through 7.5-m-deep soil strata for a period of 150 and 600 days. From the centrifuge test results, the Reynolds number, R, and Peclet number, P, were found to be several orders less than unity. This indicates that the dominant Cl transport mechanism in the soil is diffusion. Finite-element modeling was performed, using SEEP/W and CTRAN/W, to validate the experimental results, and excellent matching has been obtained. The study also highlights that geotechnical centrifuge modeling can be used as a viable alternative to field scale experimentation. (c) 2012 American Society of Civil Engineers.
 
Publisher ASCE-AMER SOC CIVIL ENGINEERS
 
Date 2014-10-16T05:36:06Z
2014-10-16T05:36:06Z
2012
 
Type Article
 
Identifier INTERNATIONAL JOURNAL OF GEOMECHANICS, 12(3)327-332
http://dx.doi.org/10.1061/(ASCE)GM.1943-5622.0000139
http://dspace.library.iitb.ac.in/jspui/handle/100/15352
 
Language en