| 摘要 |
<p>Method and apparatus of seismic investigation using the Swept Impact Seismic Technique in which method the investigation is performed by means of a series of controlled impact sequences applied at different points of the investigation site, the impacts being generated with an impact device (20, 30, 40), and the operation of the impact device being controlled with a control system (110, 70) by means of an electric control signal.</p> |
