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AITESITA

Towards an improved use

of underground Space

In Consultative Status, Category II with the United Nations Economic and Social Council

http://www.ita-aites.org

ASSOCIATIONINTERNATIONALE DES TRAVAUX

EN SOUTERRAININTERNATIONALTUNNELLING

ASSOCIATION

State-of-the-art of Non-Destructive Testing Methods for Determining the State of Tunnel Lining

MAINTENANCE AND REPAIR

Title

Topic

Originally published

Abstract: This report describes various methods of non-destructive testing for tunnel linings, based on informationpresented to and contributed by members of the ITA Working Group on Maintenance and Repair of Tunnels.The report defines the requirements for non-destructive testing methods, and briefly describes and comparesvarious methods, including mechanical oscillation techniques, radiation techniques, electric and electronictechniques, and optical techniques. Georadar, thermography and multispectral analysis, as applied for high-speed investigation work, are considered in detail. The authors discuss results of tests performed by the Germanresearch organisation STUVA, relating to rapid inspection of tunnel linings. The report includes descriptions of the types of investigations carried out in eight countries.

Rsum: Cet article dcrit diverses mthodes d'essais non destructifs pour les revtements de tunnels, bases sur desinformations fournies et discutes par les membres du groupe de travail de l'AITES "Maintenance et rparationdes tunnels." Le rapport dfinit les spcifications relatives aux mthodes d'essais non destructifs, et dcritbrivement, en les comparant, diverses mthodes incluant, les techniques bases sur les oscillationsmcaniques, les radiations, ainsi que les mthodes lectriques, lectroniques et optiques. Les analyses par

goradar, thermographie et multispectrales, appliques pour les travaux de reconnaissances rapides, sontexamines dans le dtail. Les auteurs discutent des rsultats d'essais raliss par la STUVA, organisme derecherche allemand, portant sur l'inspection rapide des revtements des tunnels. La rapport comporte desdescriptions des types d'investigations conduites dans huit pays.

Remarks: -

in the Journal "Tunnelling and Underground Space Technology",

Working Group: WG 6 - "Maintenande and Repair"

AuthorITA WG Maintenance and Repair

Open Session, Seminar, Workshop: -

Others: Report

Copyright 1995, Elsevier Science Limited, www.elsevier.com; All Rights reserved.Vol. 10, Nr. 4, pp. 413 - 431, Year 1995.

Secretariat : ITA-AITES c/o EPFL - Bt. GC CH-1015 Lausanne - SwitzerlandFax : +41 21 693 41 53 - Tel. : +41 21 693 23 10 - e-mail : secretariat@ita-aites.org - www.ita-aites.org

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