| 摘要 |
<p>A method of driving in an earth electroce having a conical coupling end with the aid of a driving head having a recess, in which the driving head is placed by its recess on the coupling end and the earth electrode is driven into the ground by means of a striking tool acting on the driving head, comprising placing a driving head having a conical recess fitting to the coupling end on the coupling end and after the earth electrode is driven in, loosening the driving head from the coupling end by releasing means. And driving head for employing the method.</p> |
