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An Experimental Methodology for Monitoring Contaminant Transport Through Geotechnical Centrifuge Models

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Abstract

In this paper, an attempt has been made to highlight an experimental methodology for monitoring contaminant transport through locally available silty soil and commercially available clay in geotechnical centrifuge models, for different compaction states. Use of multiple depth sensors to determine depth distribution of sodium chloride in the soil column has been detailed. The obtained results have been compared with argentometric method. To validate the centrifuge modelling, modelling of models has been used. The test setup developed can simulate contaminant transport mechanisms through the soil mass, which is approximately 10 m deep, over a period of 600 days. R e and P e are found to be N times higher in the centrifuge models. These numbers are found to be several orders less than unity. This indicates that laminar flow prevails and the dominating Cl− transport mechanism in centrifuge is diffusion. The study also highlights the fact that the geotechnical centrifuge modelling can be used as a viable alternative to field scale experimentation.

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  1. Department of Civil Engineering, Caarmel Engineering College, Pathanamthitta, Kerala, India

    P. R. Kumar

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  1. P. R. Kumar
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Correspondence to P. R. Kumar.

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Kumar, P.R. An Experimental Methodology for Monitoring Contaminant Transport Through Geotechnical Centrifuge Models. Environ Monit Assess 117, 215–233 (2006). https://doi.org/10.1007/s10661-006-0441-x

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  • DOI: https://doi.org/10.1007/s10661-006-0441-x

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