Abstract |
Results are presented of an experiment designed to determine the vibrational characteristics of subterranean voids. The objective was to evaluate the resonance phenomenon, as reported by early investigations, as an an appropriate mechanism for the development of a cavity detection and delineation tool. The results, while not entirely establishing the existence of resonance per se, establish a diagnostic reverberant seismic event that shows much promise as a detection mechanism. The use of three-component seismometers, and particle trajectory analysis, restores practicality to the reflection method. (Author Modified Abstract) |