Chapter
Apr 26, 2012
Permanent Deformation of Subgrade Soils
Authors: Zhong-yin Guo [email protected], Hong-liang Zhang, Ph.D., Lin Cong, Ph.D., and Qi-ju GaoAuthor Affiliations
Publication: Analysis of Asphalt Pavement Materials and Systems: Engineering Methods
Abstract
Few research projects have been conducted on the permanent deformation of subgrade soils in China. Based on a comprehensive literature review, a testing procedure to evaluate permanent deformation in subgrade soils is developed and presented in this paper. The parameters in the permanent deformation test include confining pressure, deviator stress, load shape, load duration, load rest period, moisture content and dry density. Using the procedure, the authors conducted repeated load tests for three subgrade soils. The test results are in good agreement with the relationships between the permanent strain and the number of load applications proposed by Tseng and Lytton. The regression models for sand, silty clay and clay have been developed from these results.
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Published In
Analysis of Asphalt Pavement Materials and Systems: Engineering Methods
Pages: 156 - 169
Copyright
© 2007 American Society of Civil Engineers.
History
Published online: Apr 26, 2012
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ASCE Technical Topics:
- Clays
- Continuum mechanics
- Dead loads
- Deformation (mechanics)
- Dynamic loads
- Dynamics (solid mechanics)
- Engineering fundamentals
- Engineering mechanics
- Geomechanics
- Geotechnical engineering
- Infrastructure
- Load duration
- Load tests
- Pavements
- Repeated loads
- Soil deformation
- Soil mechanics
- Soils (by type)
- Solid mechanics
- Static loads
- Statics (mechanics)
- Structural dynamics
- Structural mechanics
- Subgrade soils
- Subgrades
- Tests (by type)
- Transportation engineering
Authors
Affiliations
Professor, Key Laboratory for Road Traffic Engineering of Ministry of Education, Shanghai, 200092, China. E-mail: [email protected]
Hong-liang Zhang, Ph.D.
Key Laboratory for Special Area Highway Engineering of Ministry of Education, Highway College of Chang'an University, Xi'an, Shaanxi, 710064, China; Key Laboratory for Road Traffic Engineering of Ministry of Education, Shanghai 200092, China
Lin Cong, Ph.D.
Key Laboratory for Road Traffic Engineering of Ministry of Education, Shanghai 200092, China
Qi-ju Gao
Doctor Candidate, Key Laboratory for Road Traffic Engineering of Ministry of Education, Shanghai 200092, China; Shandong Communications Science Research Institute, Jinan, Shandong, 250031, China
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