Chapter
Apr 26, 2012
Analysis of Crack Evolvement and Deformation of Unsaturated Soil Slope
Publication: Advances in Unsaturated Soil, Geo-Hazard, and Geo-Environmental Engineering
Abstract
Cracks are easily initiated in unsaturated expansive soil slopes due to evaporation process and the development of these cracks affects greatly the deformation and stress of soil slopes due to rainfall infiltration/evaporation. Consolidation theory for unsaturated soils is employed here to investigate crack evolvement and deformation of unsaturated expansive soil slopes. By using reduced suction and introducing a new elastic-plastic constitutive equation of the soil skeleton, the simplified consolidation theory for unsaturated soils are employed and incorporated into an in-house finite element method code. Initial cracking of the soil slopes is simulated and analyzed in detail and then the seepage-deformation analysis for unsaturated soil slope accompanying the initiating of crack is explored using FEM code developed here under evaporation conditions and rainfall infiltration.
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Information
Published In
Advances in Unsaturated Soil, Geo-Hazard, and Geo-Environmental Engineering
Pages: 50 - 58
Copyright
© 2011 American Society of Civil Engineers.
History
Published online: Apr 26, 2012
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ASCE Technical Topics:
- Continuum mechanics
- Cracking
- Deformation (mechanics)
- Engineering mechanics
- Expansive soils
- Fine-grained soils
- Fracture mechanics
- Geomechanics
- Geotechnical engineering
- Slopes
- Soil analysis
- Soil deformation
- Soil mechanics
- Soil properties
- Soil stress
- Soils (by type)
- Solid mechanics
- Stress (by type)
- Stress analysis
- Structural analysis
- Structural engineering
- Structural mechanics
- Unsaturated soils
Authors
Affiliations
Post-Doctoral Research Fellow, Key Laboratory of Mountain Hazards and Surface Process, CAS, Chengdu 610041, China; and Associate Professor, School of Hydraulic and Hydropower Engineering, Sichuan University, Chengdu 610065, China.E-mail: [email protected]
Professor, Institute of Mountain Hazards and Environment, CAS, Chengdu 610041, China.E-mail: [email protected]
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