| 摘要 |
<p>PROBLEM TO BE SOLVED: To decrease the working steps of working process and to improve working efficiency, by arranging a track on the floor surface in a tunnel, arranging various kinds of working carriages mounting the working devices for everay working process on the track in the sequence of the working process, and performing the laying work of the cable in atmosphere of duct by using the working carrier. SOLUTION: A pair of tracks 10 are provided along the entire length to the bottom part of a vertical shaft 8 on the floor surface in a tunnel 7 provided underground along a laying root. On the track 10, first and second temporary conveying carriers 11 and 11' mounting the working devices for every working process, a traction carrier 13, first and second adjusting carriers 14 and 14', a connecting clean-room carriage 15, a welding-room carriage 16, an X-ray inspecting carriage 17, a gas processing carriage 18 and the like are arranged and moved. Thus, a cable unit 1 in the atmosphere of the duct is assembled. Thus, the laying work for compressed gas-insulated transmission can be performed efficiently.</p> |
