| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To grasp deterioration states, such as being made muddy and being made porous, of a surface and an inside of a concrete structure facially and objectively. <P>SOLUTION: Reflected wave data corresponding to locations in the flat surface coordinates is recorded by scanning an electromagnetic wave radar which transmits electromagnetic waves from a transmitting antenna and also receives reflected waves along a number of measuring lines which are set facially on the surface of the concrete structure; for each reflected data, (1) surface analysis for two-dimensionally grasping surface degradation places with each great attenuation factor in electromagnetic wave amplitude is carried out by extracting direct waves in the close proximity to the concrete surface to determine a maximum amplitude value and then preparing the plane distribution chart and (2) internal analysis for two-dimensionally grasping surface degradation places with each great degree of scattered waves is carried out by determining the RMS value of each amplitude value of scattered waves from the inside of the concrete and then preparing the plane distribution chart; and, thus, with the combination of the results of the analyses (1) and (2) above, the degradation states of the surface and the inside of the concrete is diagnosed. <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
