Seismic Crystals And Earthquake Shield Application

Details Seismic Crystals And Earthquake Shield Application Seismic Crystals And Earthquake Shield Application

2009-02-09

arxiv.org/abs/0902.1429v4

Physics

Geophysics

submitted to CEJP

Scientific paper

We theoretically demonstrate that earthquake shield made of seismic crystal can damp down surface waves, which are the most destructive type for constructions. In the paper, seismic crystal is introduced in aspect of band gaps (Stop band) and some design concepts for earthquake and tsunami shielding were discussed in theoretical manner. We observed in our FDTD based 2D elastic wave simulations that proposed earthquake shield could provide about 0.5 reductions in magnitude of surface wave on the Richter scale. This reduction rate in magnitude can considerably reduce destructions in the case of earthquake.

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