Report No. : GEO Report No. 304

Report Title : Use of Time Domain Reflectometry (TDR) with Pre-installed Wires to Check the Grout Integrity of Soil Nails (2014), 39 p.

Author : C.S.C. Tang & P.F.K. Cheng


This report presents a study on the application of Time Domain Reflectometry (TDR) to identify defects in the cement grout sleeves of soil nails. Prefabricated soil nails with known voids in the grout sleeves were tested in the study.

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