Chapter
Apr 26, 2012
Experimental and Theoretical Studies on (Relative) Permittivity of the Tunnel Lining
Publication: Characterization, Modeling, and Performance of Geomaterials: Selected Papers From the 2009 GeoHunan International Conference
Abstract
In the paper, for two cases of different ages and different depths, the speed of radar wave transmitted in the testing concrete lining is measured by using the ground penetrating radar (GPR), and corresponding data of permittivity of the concrete lining are therefore obtained. An abnormal phenomenon of the permittivity is observed which shows that the value of permittivity will increase linearly with the depth of the concrete lining. Combined with the characteristics of tunnel lining and taken the free water distribution into account, a new dielectric model of the concrete lining is put forward. Results show that this model can be used to explain the experimental results and provide correct reference for the GPR use in measuring the depth of the concrete lining with good accuracy.
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Published In
Characterization, Modeling, and Performance of Geomaterials: Selected Papers From the 2009 GeoHunan International Conference
Pages: 129 - 137
Copyright
© 2009 American Society of Civil Engineers.
History
Published online: Apr 26, 2012
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ASCE Technical Topics:
- Case studies
- Communication systems
- Concrete
- Construction engineering
- Construction methods
- Engineering fundamentals
- Engineering materials (by type)
- Equipment and machinery
- Geotechnical engineering
- Infrastructure
- Lifeline systems
- Linings
- Material tests
- Materials engineering
- Methodology (by type)
- Model accuracy
- Models (by type)
- Radar
- Research methods (by type)
- Tests (by type)
- Tunnels
Authors
Affiliations
Professor, Department of Communications and Transportation Engineering, Changsha University of Science & Technology, Changsha, 410076, Hunan, P. R. China. E-mail: [email protected]
Senior Engineer, Department of Communications and Transportation Engineering, Changsha University of Science & Technology, Changsha, 410076, Hunan, P. R. China. E-mail: [email protected]
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