Comparison of multidisciplinary approaches and unification of concepts on the movement of water and soil in deformable porous media

D. J. Kim, H. Vereecken, J. Feyen

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)

Abstract

A theoretical review is presented on different approaches used for mathematical equations describing water and soil movement associated with transient pore water flow and soil deformation. Through a careful analysis of the governing equations, concepts used in different fields of engineering are found to be exactly equivalent. The comparison of soil water flow equation applicable to non-rigid porous media with the equation for consolidation reveals that under saturated conditions, both the compression index Cc and the coefficient of compressibility av are equivalent to the slope of soil moisture retention characteristic (MRC) and differential moisture capacity (dΘ/dΨ). Further, the coefficient of consolidation Cv is found to have the same physical meaning as the soil moisture diffusivity (D). Although both approaches originate from the same physical basis, practical applications have been limited to specific fields of soil engineering. It appears, however, that the approach used in soil physics retains wider applicability because it provides solutions of soil deformation (i) even under no external load, (ii) for unsaturated flow, and (iii) in a two-dimensional mode.

Original languageEnglish
Pages (from-to)141-148
Number of pages8
JournalSoil Science
Volume156
Issue number3
DOIs
Publication statusPublished - 1993 Sep

ASJC Scopus subject areas

  • Soil Science

Fingerprint Dive into the research topics of 'Comparison of multidisciplinary approaches and unification of concepts on the movement of water and soil in deformable porous media'. Together they form a unique fingerprint.

Cite this