Abstract
In this paper the response reduction effect of a wave impeding block (WIB) was investigated when it was build under a focused structure or near it in order to impede incoming waves induced by source vibrations. The parameter studies were conducted on the WIB width and thickness in view of the concerned wave field. The wave propagation/ impdediment were detailed in the transient response for a Ricker-wave form loading. The computation was based on the hybrid method of the FEM for the surface soil including the WIB, and the BEM for the underlain halfspace. An extended application was demonstrated for a building vibration reduction by the passive type WIB as well as by the active type WIB.
