Chapter
Apr 26, 2012
Soil Behavior at the Microscale: Particle Forces
Publication: Soil Behavior and Soft Ground Construction
Abstract
Soils are particulate materials. Therefore, the behavior of soils is determined by the forces particles experience. These include forces due to boundary loads (transmitted through the skeleton), particle-level forces (gravitational, buoyant, and hydrodynamic), and contact level forces (capillary, electrical and cementation-reactive). The relative balance between these forces permits identifying various domains of soil behavior. Furthermore, the evolution of particle forces helps explain phenomena related to unsaturation, differences between drained and undrained strength under various loading modes (including the effect of plasticity), sampling disturbance, and fines migration during seepage. Generally accepted concepts gain new clarity when re-interpreted at the level of particle forces.
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Copyright
© 2003 American Society of Civil Engineers.
History
Published online: Apr 26, 2012
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ASCE Technical Topics:
- Buoyancy
- Contact mechanics
- Continuum mechanics
- Deformation (mechanics)
- Design (by type)
- Domain boundary
- Engineering fundamentals
- Engineering materials (by type)
- Engineering mechanics
- Fluid dynamics
- Fluid mechanics
- Geomechanics
- Geotechnical engineering
- Hydrodynamics
- Hydrologic engineering
- Load factors
- Material mechanics
- Material properties
- Materials engineering
- Mathematics
- Particles
- Soil mechanics
- Soil properties
- Solid mechanics
- Structural design
- Structural mechanics
- Water and water resources
Authors
Affiliations
J. Carlos Santamarina
Professor, School of Civil and Environmental Engineering, Georgia Institute of Technology, Atlanta, GA 30332
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