Role of unsaturated soil mechanics in geotechnical engineering

Harianto Rahardjo, Yongmin Kim, Alfrendo Satyanaga

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)


The understanding of unsaturated soil mechanics principles is of interest to a wide spectrum of geotechnical problems associated with soils above water table and compacted soils. This paper describes the stress state variables and constitutive equations based on the unsaturated soil mechanics principles. In addition, the basic concepts for characterization of unsaturated soils and measurements of matric suction (or negative pore-water pressures) are also explained. The application of unsaturated soil mechanics theories is illustrated through the use of capillary barrier system for minimizing rain infiltration into residual soil slopes.

Original languageEnglish
Article number8
JournalInternational Journal of Geo-Engineering
Issue number1
Publication statusPublished - Dec 1 2019
Externally publishedYes


  • Constitutive equations
  • Numerical analysis
  • Soil–water characteristic curve
  • Stress state variables
  • Unsaturated soil

ASJC Scopus subject areas

  • Geotechnical Engineering and Engineering Geology
  • Mechanics of Materials
  • Energy (miscellaneous)

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