Profiles of Steady-State Suction Stress in Unsaturated Soils

Application of the effective stress principle in unsaturated geotechnical engineering problems often requires explicit knowledge of the stress acting on the soil skeleton due to suction pore water pressure. This stress is defined herein as the suction stress. A theoretical formulation of suction str...

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Bibliographic Details
Published inJournal of geotechnical and geoenvironmental engineering Vol. 130; no. 10; pp. 1063 - 1076
Main Authors Lu, Ning, Griffiths, D. V
Format Journal Article
LanguageEnglish
Published New York, NY American Society of Civil Engineers 01.10.2004
Subjects
Applied sciences
Buildings. Public works
Computation methods. Tables. Charts
Exact sciences and technology
Geotechnics
Soil investigations. Testing
Structural analysis. Stresses
TECHNICAL PAPERS
Water effect, drainage, ground water lowering, filtration
Water pressure
Suction
Unsaturated soils
Steady flow
Shear strength
Experimental study
Forecast model
Stress
Effective stress
Soil water properties
Soil test
Pore pressure
Soil suction
Pore water pressure
Unsaturated soil
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Summary:Application of the effective stress principle in unsaturated geotechnical engineering problems often requires explicit knowledge of the stress acting on the soil skeleton due to suction pore water pressure. This stress is defined herein as the suction stress. A theoretical formulation of suction stress profiles, based on the soil water characteristics curve, the soil permeability characteristic curve, and previous shear strength experimental verification, is developed. The theory provides a general quantitative way to calculate vertical suction stress profiles in various unsaturated soils under steady flow rate in the form of infiltration or evaporation.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:1090-0241
1943-5606
DOI:10.1061/(ASCE)1090-0241(2004)130:10(1063)