| 摘要 |
<p>PROBLEM TO BE SOLVED: To close an opening section of a hole in an outbreak part very stably without backfilling the hole of the outbreak part provided to one end of a buried pipe line and to simply open the opening section of the hole to make it possible to use the hole of the outbreak part in the case of working later. SOLUTION: In pipe line burying work, a hole 2 is dug from the ground surface 1 to bury a pipe in the hole 2. In that case, posts 5 are assembled in an outbreak hole 4 provided to one end of a buried pipe line 3, an opening section 4a of the outbreak hole 4 is covered with a lining plate 6, the lining plate 6 is borne on the posts 5 to close the opening section 4a, and when burying work of a new pipe connected to the pipe line 3 is carried out, the lining plate 6 and posts 5 are removed from the hole 4 to dig a pipe burying hole connected to the hole 4.</p> |
