STUDY TO UNDERSTAND THE CONDITION OF SUPERSTRUCTURE OF A DISASTER-STRICKEN PIER BY USING AN ELECTROMAGNETIC RADER

Abstract

 It is important to promptly understand the condition of a facility in a port stricken by a major earthquake, etc. for the purpose of attempting quick transport of emergency goods and recovery of port functions. In this study, we focused on the concrete superstructure of a pier to review applicability of a method of investigation and analysis using an electromagnetic radar, as an alternative to direct visual inspection by an inspector, a diver, etc. from the vessel as a traditional method.
 The existing superstructure of a pier was tested by using a 3D electromagnetic radar to compare the condition of the actual structure with response from the radar data. As a result of test and analysis, results that indicate the possibility to estimate the approximate condition around reinforced steel on the bottom of a slab were obtained. We also reviewed advantages to utilize this method in the field site of facility management.