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Apr 26, 2012
Structural Health Monitoring for LRT Underground Tunnel Liner
Authors: Mark Bourland and Robert YuanAuthor Affiliations
Publication: Earth & Space 2006: Engineering, Construction, and Operations in Challenging Environment
Abstract
A light-rail transit (LRT) tunnel was mined in Austin Chalk (soft rock). A polypropylene-fiber-reinforced shotcrete liner was pneumatically placed against the rock. The liner thickness varies from 5 to 28 cm. Inspections by sounding revealed that some of the liner had delaminated from the rock. In order to perform structural diagnostics and health monitoring on the tunnel liner, a mapping procedure for the liner subsurface with ground penetrating radar was selected using non-contact antennas. This paper discusses the antenna deployment device and issues involved in using ground penetrating radar in the underground tunnel to map the subsurface of over 131,000 m2 of fiber-reinforced shotcrete. In conclusion, it was determined that there are many factors involved that limit the use and application of ground penetrating radar in LRT tunnels.
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Published In
Earth & Space 2006: Engineering, Construction, and Operations in Challenging Environment
Pages: 1 - 8
Copyright
© 2006 American Society of Civil Engineers.
History
Published online: Apr 26, 2012
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Authors
Affiliations
Mark Bourland
Visiting Assistant Professor, Department of Civil Engineering, Lamar University, P.O. Box 10024, Beaumont, Texas 7710-0024
Robert Yuan
Chairman, Civil Engineering Department, Lamar University, P.O. Box 10024, Beaumont, Texas 77710-0024
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ASCE Library Cards let you download journal articles, proceedings papers, and available book chapters across the entire ASCE Library platform. ASCE Library Cards remain active for 24 months or until all downloads are used. Note: This content will be debited as one download at time of checkout.
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Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.