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ITA study of non-destructive methods of inspecting and testing tunnel linings
Authors:A.J. Howard   Chairman   Head of Tunnels  ITA Working Group on Maintenance  Repair of Underground Structures
Abstract:The International Tunneling Association's Working Group on Maintenance and Repair of Underground Structures is preparing a report dealing with non-destructive methods of inspecting and testing tunnel linings. This request for information details the scope of the group's work and the types of information the group is seeking at this time.
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