火薬爆発によるS波検出の実験 : S波発生の簡単な試み

概要

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In seismic prospecting, it has become important to determine the velocity of the shear waves in each layer. At present, a socalled "plate striking" method has been widely used for shear wave prospecting in our country. This method is very simple, but it has a defect, which is its soure of energy is man power. Therefore, we have a limit of depth for prospecting and can only know the structures very near the surface. Instead of using man power, a simple source by explosions was tried, as shown in Fig. 1. In spite of it being a very elementary experiment, we got good results. Seismic records by the two methods are shown in Fig. 3. They had similar features in waveform and subsurface structure in the experimental field according to the auther's analysis was in accordance with the results of others. For a general utilization of this source, it is necessary to make further experiments.
帯広畜産大学の論文
1969-01-30