EXAMINATION OF JUDGMENT PROCESS IN QUANTITATIVE NONDESTRUCTIVE EVALUATION OF ANCHORAGE ZONE OF POST-INSTALLED ANCHOR BY USING ELECTROMAGNETIC PULSE METHOD

Abstract

We proposed an improved evaluation process for the quantitative nondestructive evaluation of anchorage zone of post-installed anchor by using electromagnetic pulse method. We changed the method of assigning NG points for each index value so that there is a difference depending on the amount that deviates from the judgment threshold. The improved process can evaluate the degree of the defectiveness, and the effectiveness was demonstrated by comparing with the conventional one.