| 摘要 |
<p>PURPOSE:To prevent a cable from being damaged or slacked by using a laying device consisting of a cutter carrier for making a groove in the inside surface of an underground piping, a cable drum carrier drawing out the cable into the groove and a fixing material filling carrier. CONSTITUTION:A cutter carrier 1 has a cutter 6 and travels inside an underground piping 4. The cutter 6 makes a groove 9 in which a cable 8 is laid, in the inside surface of the underground piping 4. A cable drum carrier 2 has a drum 11 with the cable 8 wound thereon, and travels inside the underground piping 4. A fixing material filling carrier 3 has a nozzle 13 for supplying a fixing material, and a brush 14, and travels inside the underground piping 14. The fixing material filling carrier 3 inserts the cable 8 into the groove 9 and, then, fills in the groove 9 with a quick-drying concrete or a resin supplied from the nozzle 13 to fix the cable 8 in place, and makes the surface of the concrete in the groove 9 flat by the brush 14.</p> |
