Inducing Stress Waves by Underground Nuclear Explosions
Stress waves induced in rocks following earthquakes and their impact on structures have been a subject for discussion in earthquake engineering for many years. As is believed a stress wave is considered to be a very slow wave of deformation which propagates from the epicenter of a strong shock during relatively short time after the event and, then rapidly decays. However, until now there has been no strong evidence of the fact that various damages in structures received during earthquakes were caused, even partially, by stress waves, and not only with the strong ground motion. This problem is of significance for choosing proper structure response criteria for civil and industrial construction in earthquake prone areas. As is expected, stress waves may produce additional impact on structures already damaged by the shock. However it is difficult to detect a stress wave which may exist only for a short time after the event because the exact time and place of earthquake occurrence are usually unknown and usually measuring instruments cannot be deployed in due time.
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