Highways Agency Report

             Shelfmark: SSR/TRL/651
       Personal author: Brady K C
      Corporate author: Transport Research Laboratory
                 Title: Acoustic monitoring of ground anchorages: phase 1 -
                        laboratory providing trials
             Publisher: Transport Research Laboratory, 2001
  Physical description: 13 leaves, ill., charts
                 Price: Unpriced
       Notes - general: This report describes a large scale proving trial
                        conducted to elevate the application of the SoundPrint
                        system to the detection of wire breaks in ground
                        ancjorages.  Three 4.1 m long anchorage tendons,
                        constructed in accordance with normal practice, and
                        installed in a 600 mm diameter, 4.5 m long gun-barrel
                        test rig were subjected to a number of load cycles.  A
                        manual log of the load-extension relation and observed
                        wire breaks was made throughout the test.  The
                        correlation between observed wire breaks and those
                        determined by SoundPrint is good.  There is evidence
                        to suggest that the system detected wire breaks that
                        were undetectable through an examinaion of the
                        load-extension relations of the tendons.
               Keyword: Stress Analysis
 CONTRACTOR REPORT
  copy:1       id:54046000288033      library:SSR          location:SSR-SHELF