| 摘要 |
<p>The method involves guiding a controlled pipe drive from a starting point (1) under an obstacle (9) to a target point (3). A drilling head (6) is pushed forward from the starting point in the direction towards the target point using support pipes (11). A borehole (12) is expanded to its final diameter and supported by the support pipe, and the soil released by the drilling head is transported out of borehole. A pipeline (14) prepared in partial segments is coupled to a support pipe run (8) formed by the support pipes. The pipeline advances through the borehole by applying compressive forces.</p> |
