Variability of volume strain in bounded heterogeneous media

Ching Min Chang, Hund-Der Yeh*

*Corresponding author for this work

Research output: Contribution to journalArticle

1 Scopus citations

Abstract

The deformation of the solid matrix affects the fluid pore pressure and flow by altering the pore volume. Such interaction in turn affects the storage of groundwater in the void space. Obviously, this subject is of interest in groundwater hydrology. This paper describes an investigation of the effect of aquifer heterogeneity on the variability of the fluid pressure head and solid's volume strain, where the assumption of a constant vertical total stress leads to a relatively simple relationship between changes in solid's volume strain and fluid pressure head. To solve the problem analytically, focus is placed on the one-dimensional models. It is found from our closed-form solutions that the variance and correlation length of the log hydraulic conductivity are important in increasing the variability of pressure head and solid's volume strain. It is hoped that our findings will provide a basic framework for understanding and quantifying field-scale volume strain processes and be useful in stimulating further research in this area.

Original languageEnglish
Pages (from-to)319-323
Number of pages5
JournalHydrological Processes
Volume27
Issue number3
DOIs
StatePublished - 30 Jan 2013

Keywords

  • Bounded heterogeneous media
  • Stochastic analysis
  • Volume strain

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