Skip to main content


TRB’s second Strategic Highway Research Program (SHRP 2) Report S2-R06G-RR-1: Mapping Voids, Debonding, Delaminations, Moisture, and Other Defects Behind or Within Tunnel Linings identifies techniques that appear to provide useful information for evaluating tunnel linings.

The results of Renewal Project R06G were incorporated into an electronic repository for practitioners known as the NDToolbox, which provides information regarding recommended technologies for the detection of a particular deterioration.

In conjunction with the R06G Report, three separate products were created: a user’s manual, which provides information on three nondestructive testing (NDT) technologies for tunnel inspection; analysis software called TunnelCheck; and a brief user’s guide to the software. The user's manual, software, user's guide are available for download in a single ZIP formated file.

Software Disclaimer: These materials are offered as is, without warranty or promise of support of any kind, either expressed or implied. Under no circumstance will the National Academy of Sciences or the Transportation Research Board (collectively “TRB”) be liable for any loss or damage caused by the installation or operation of these materials. TRB makes no representation or warranty of any kind, expressed or implied, in fact or in law, including without limitation, the warranty of merchantability or the warranty of fitness for a particular purpose, and shall not in any case be liable for any consequential or special damages.

Suggested Citation

National Academies of Sciences, Engineering, and Medicine. 2013. Mapping Voids, Debonding, Delaminations, Moisture, and Other Defects Behind or Within Tunnel Linings. Washington, DC: The National Academies Press.

Import this citation to:

Publication Info

32 pages |  8.5 x 11 |  Paperback
ISBN: 978-0-309-27291-9
Chapters skim
Front Matter i-viii
Executive Summary 1-2
Chapter 1 - Background 3-3
Chapter 2 - Research Approach 4-17
Chapter 3 - Findings and Applications 18-29
Chapter 4 - Conclusions and Recommended Research 30-32
Appendix A - Air-Coupled Ground-Penetrating Radar Testing Criteria 33-34
Appendix B - Ground-Coupled Ground-Penetrating Radar Testing Criteria 35-35
Appendix C - Handheld Thermal Camera Testing Criteria 36-37
Appendix D - Ultrasonic Tomography Testing Criteria 38-40
Appendix E - Ultrasonic Echo Testing Criteria 41-42
Appendix F - Ultrasonic Surface Waves and Impact Echo Testing Criteria 43-46
Appendix G - Field Testing with Acoustic Sounding 47-51
Appendix H - Vehicle-Mounted Thermal Camera Testing Criteria 52-52
Appendix I - Survey of the Chesapeake Bay Bridge-Tunnel 53-65
Appendix J - Tunnel Tests in Finland 2010 2011 66-90
Appendix K - Air-Coupled Ground-Penetrating Radar Field Tests 91-97
Appendix L - Evaluation of Texas A&M Transportation Institute Test Specimens with the Handheld Infrared Camera 98-108
Appendix M - Ultrasonic Tomography Field Tests in the United States 109-145
Appendix N - Ultrasonic Tomography Test Summaries 146-204
Appendix O - Evaluation of Tiled Tunnel Linings by Using Acoustic Sounding 205-208
Appendix P - Portable Seismic Property Analyzer Field Tests in the United States 209-237
Appendix Q - BAM Testing in U.S. Tunnels 238-289
Appendix R - Estimated Depths to Defects from Nondestructive Testing 290-292
Appendix S - Concrete Permeability Laboratory Study 293-311
Appendix T - Radar Specifications for Air-Coupled Ground-Penetrating Radar Antennae 312-314
Appendix U - Portable Seismic Property Analyzer Slab Tests 315-357
Appendix V - Analysis of SPACETEC Data 358-378
Appendix W - Findings and Applications of the BAM 379-386
Appendix X - Digital Photogrammetry 387-393
Renewal Technical Coordinating Committee 394-394

What is skim?

The Chapter Skim search tool presents what we've algorithmically identified as the most significant single chunk of text within every page in the chapter. You may select key terms to highlight them within pages of each chapter.

loading iconLoading stats for Mapping Voids, Debonding, Delaminations, Moisture, and Other Defects Behind or Within Tunnel Linings...