工事振動への経験的予測手法の適用性に関する検討

Abstract

To simply and accurately evaluate construction vibrations, we investigated on the applicability of the empirical prediction method to construction vibrations, using velocity of subsurface layer. We performed measurements for construction vibrations and subsurface structural surveys at a site. Applying the wave propagation equation to construction vibrations, we found that Rayleigh waves affected by subsurface layer were significantly dominated in construction vibrations. Finally, we well reproduced construction vibrations against distances from construction sources by the empirical prediction method based on the theory of wave propagation, focusing on the dominant frequency with phase velocity of surface waves in a subsurface layer.