| 摘要 |
<p>There is described a method of laying pipe (20) through a fill (12) of loosely packed materials, where the pipe is installed between a pointed front section (36) and a rear section (50) of a tool, and the rear section is subjected to a drive force in the longitudinal direction, so that the pointed section and the pipe is pushed into the loosely packed materials. The method is characterized by that in the event that the progress is halted due to an inadvertent hindrance in the loosely packed materials, the tool and the pipe connected thereto is pulled back by exerting a tractive force on a tractive means (80) connected to the pointed front section. Preferably the tractive means is a line (80) in the shape of a wire and/or a chain, fixed to the front section (32), where the line runs within the pipe connected to the rear section (50), and the tractive force is controlled by the tool operator.</p> |
