NON-DESTRUCTIVE TESTING OF FIRED TUNNEL WALLS: THE MONT-BLANC TUNNEL CASE STUDY
The investigation of fired tunnel walls typically relies on visual inspection and a comprehensive study of core samples. Visual inspection is limited to surface diagnosis, while core samples only provide a detailed image of the damaged zone at a single point. In order to gain an extensive view of the entire depth of the damaged zone as well as specific material properties, both the seismic refraction method and ground-penetrating radar investigation may be carried out. In the case of the Mont-Blanc Tunnel, these non-destructive methods have been tested in there zones: heavily damaged, moderately damaged, and sound. On the radargrams generated, several layers can be roughly identified; seismic refraction then confirms and characterises the existence of layers with contrasting mechanical properties. (A)
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/issn/09638695
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Corporate Authors:
The Boulevard, Langford Lane
Kidlington, Oxford United Kingdom OX5 1GB -
Authors:
- Derobert, X
- Abraham, O
- Publication Date: 2003-9
Language
- English
Media Info
- Features: References;
- Pagination: p. 411-8
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Serial:
- NDT & E International
- Volume: 36
- Issue Number: 6
- Publisher: Elsevier
- ISSN: 0963-8695
Subject/Index Terms
- TRT Terms: Evaluation and assessment; Fires; Loss and damage; Nondestructive tests; Radar; Seismicity; Tunnel lining; Tunnels
- ITRD Terms: 1614: Damage; 9020: Evaluation (assessment); 1624: Fire; 6216: Non destructive testing; 6738: Radar; 5731: Seismic; 3374: Tunnel; 3385: Tunnel lining
- Subject Areas: Bridges and other structures; Geotechnology; Planning and Forecasting;
Filing Info
- Accession Number: 00963900
- Record Type: Publication
- Source Agency: Transport Research Laboratory
- Files: ITRD
- Created Date: Oct 3 2003 12:00AM