Geotechnical centrifuge modeling of chloride diffusion through soils
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 modeli...
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American Society of Civil Engineers
2012
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my.utm.336792018-11-30T06:39:00Z http://eprints.utm.my/id/eprint/33679/ Geotechnical centrifuge modeling of chloride diffusion through soils Pillai, Rajeev Kumar Singh, Devendra N. TA Engineering (General). Civil engineering (General) 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 Péclet 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. American Society of Civil Engineers 2012-06 Article PeerReviewed Pillai, Rajeev Kumar and Singh, Devendra N. (2012) Geotechnical centrifuge modeling of chloride diffusion through soils. International Journal of Geomechanics, 12 (3). pp. 327-332. ISSN 1532-3641 http://dx.doi.org/10.1061/(ASCE)GM.1943-5622.0000139 DOI:10.1061/(ASCE)GM.1943-5622.0000139 |
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TA Engineering (General). Civil engineering (General) Pillai, Rajeev Kumar Singh, Devendra N. Geotechnical centrifuge modeling of chloride diffusion through soils |
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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 Péclet 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. |
| format |
Article |
| author |
Pillai, Rajeev Kumar Singh, Devendra N. |
| author_facet |
Pillai, Rajeev Kumar Singh, Devendra N. |
| author_sort |
Pillai, Rajeev Kumar |
| title |
Geotechnical centrifuge modeling of chloride diffusion through soils |
| title_short |
Geotechnical centrifuge modeling of chloride diffusion through soils |
| title_full |
Geotechnical centrifuge modeling of chloride diffusion through soils |
| title_fullStr |
Geotechnical centrifuge modeling of chloride diffusion through soils |
| title_full_unstemmed |
Geotechnical centrifuge modeling of chloride diffusion through soils |
| title_sort |
geotechnical centrifuge modeling of chloride diffusion through soils |
| publisher |
American Society of Civil Engineers |
| publishDate |
2012 |
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http://eprints.utm.my/id/eprint/33679/ http://dx.doi.org/10.1061/(ASCE)GM.1943-5622.0000139 |
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