Report No. : GEO Report No. 219

Report Title : Review of Use of Non-Destructive Testing in Quality Control in Soil Nailing Works (2007), 109 p.

Author : C.F. Lee and Ove Arup & Partners Hong Kong Ltd.


This GEO Report is composed of two volumes, which were prepared under a study to review the use of non-destructive testing techniques in quality control in soil nailing works. Volume 1 presents the independent review conducted by Professor C.F. Lee, the Independent Technical Reviewer of the study. Volume 2 contains the final report on the study, prepared by Ove Arup & Partners Hong Kong Ltd., which provides a summary of the review undertaken on the use of non-destructive testing (NDT) techniques in assessing soil nailing works, describes the quality control framework formulated in this Assignment for the application of NDT techniques in Landslip Preventive Measures (LPM) works, provides recommendations on the requirements on testing techniques, sampling strategy, non-conforming threshold and follow-up strategy and presents the results of the assessment on the suitability of the Time Domain Reflectometry (TDR) and other NDT techniques for use under the framework.

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