Model for coupled CRS consolidation and contaminant transport

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

1 Scopus citations

Abstract

This paper describes the development of a numerical model, called CSTCRS1, for one-dimensional coupled contaminant transport and large strain consolidation under constant rate of strain (CRS) loading conditions. Numerical simulations using CSTCRS1 indicate that concentration boundary conditions can have an important effect on contaminant transport during CRS consolidation. For the conditions considered, zero concentration gradient and reservoir boundary conditions yielded the same contaminant mass outflows regardless of the transport mechanisms (i.e., diffusion, mechanical dispersion, and sorption). However, these transport mechanisms become important when a zero concentration boundary condition is specified. Additional simulations indicate that applied strain rate also has an important effect on the coupled CRS consolidation and contaminant transport. A higher strain rate will generally yield more non-uniform local strain profiles, smaller contaminant mass outflow, and a larger concentration gradient within specimen.

Original languageEnglish (US)
Title of host publicationGeoEnvironmental Engineering - Selected Papers from the Proceedings of the 2014 GeoShanghai International Congress
PublisherAmerican Society of Civil Engineers (ASCE)
Pages40-49
Number of pages10
Edition241 GSP
ISBN (Print)9780784413432
DOIs
StatePublished - Jan 1 2014
Event2014 GeoShanghai International Congress: GeoEnvironmental Engineering - Shanghai, China
Duration: May 26 2014May 28 2014

Publication series

NameGeotechnical Special Publication
Number241 GSP
ISSN (Print)0895-0563

Other

Other2014 GeoShanghai International Congress: GeoEnvironmental Engineering
CountryChina
CityShanghai
Period5/26/145/28/14

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Architecture
  • Building and Construction
  • Geotechnical Engineering and Engineering Geology

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  • Cite this

    Pu, H. F., & Fox, P. J. (2014). Model for coupled CRS consolidation and contaminant transport. In GeoEnvironmental Engineering - Selected Papers from the Proceedings of the 2014 GeoShanghai International Congress (241 GSP ed., pp. 40-49). (Geotechnical Special Publication; No. 241 GSP). American Society of Civil Engineers (ASCE). https://doi.org/10.1061/9780784413432.005