| 摘要 |
PURPOSE:To facilitate arrangement of pipes by a method wherein a plurality of pipe bodies bundled together by means of a tube bed are placed on a truck comprising casters protruded from the under surface of a bed plate toward both sides and a stay sliding over a guide groove formed in the lowermost part of a tunnel and moved in the tunnel for arrangement of pipes, in arrangement of pipes in a tunnel for a covering pipe for an electric wire. CONSTITUTION:A truck 8 comprises casters 8B protruded from the under surface of a bed plate 8A toward both sides and provided at a lower end with respective rollers 81B; and a stay 8C protruded downward from the central part of the bed plate 8A. A truck 8 is moved in a tunnel 1 in a state that the rollers 81B are brought into contact with the peripheral wall 1A of the tunnel 1 and the T-shape part 8D of the tip of the stay 8C is fitted in the guide groove of a rail 9 installed on the peripheral wall 1A. A plurality of pipe bodies 5A and 5B bundled together by means of tube beds 4A and 4B are placed on the truck 8 and moved in the tunnel 1 by means of the casters 8B and the stay 8C for arrangement of pipes. |
