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PILE-SUPPORTED SEISMIC-WAVE GENERATOR
The problem of designing non-explosive sources of seismic energy with a wide frequency spectrum (more than three octaves) is considered. Certain circuitry decisions providing realization of a wave seismic impulse in the frequency range of 10–120 Hz are provided. Some model designs strictly proving the correctness of the obtained results are mathematically estimated. The way of non-explosive excitation of a powerful (50–100 kJ) broadband seismic pulse with the use of a pile-supported energizing source of longitudinal and shear seismic waves which can be buried under a low-velocity zone (LVZ) is described. The paper’s materials can be used for evaluating models and configurations of seismic sources.
Key words: seismic wave excitation technology, broadband seismic pulse, pile-supported seismic-wave generator, screw-shaped ground coupling, Euler force.
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