Experimental and computational research on consolidation-induced solute transport

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This paper presents an experimental and computational investigation of consolidation-induced solute transport. Numerical simulations were performed using the CST2 computational model in which a dual-Lagrangian framework separately follows the motions of fluid and solid phases during consolidation. Diffusion and large strain consolidation tests were conducted on composite specimens of kaolinite slurry consisting of an upper uncontaminated layer and a lower layer contaminated with potassium bromide. An assessment of the importance of the consolidation process on solute transport is based on measured and simulated solute breakthrough curves and final contaminant concentration profiles. CST2 simulations closely match the experimental data for several different transport and loading conditions. Results also indicate that both diffusion and consolidation-induced advection made an important contribution to solute transport and mass outflow, with consolidation having the largest effects for tracer transport. This study suggests that neglecting to consider transient consolidation effects may lead to significant errors in transport analyses involving soft contaminated clays undergoing large volume change.

Original languageEnglish (US)
Title of host publicationProceedings of the 11th International Conference on Civil, Structural and Environmental Engineering Computing, Civil-Comp 2007
StatePublished - Dec 1 2007
Event11th International Conference on Civil, Structural and Environmental Engineering Computing, Civil-Comp 2007 - St. Julians, Malta
Duration: Sep 18 2007Sep 21 2007

Other

Other11th International Conference on Civil, Structural and Environmental Engineering Computing, Civil-Comp 2007
CountryMalta
CitySt. Julians
Period9/18/079/21/07

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Building and Construction
  • Environmental Engineering

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  • Cite this

    Fox, P. J., & Lee, J. (2007). Experimental and computational research on consolidation-induced solute transport. In Proceedings of the 11th International Conference on Civil, Structural and Environmental Engineering Computing, Civil-Comp 2007