| 摘要 |
PROBLEM TO BE SOLVED: To provide a pipeline laying method capable of preventing a bent pipe and a sheath pipe from damaging in a case of carrying the bent pipe by a truck, and capable of downsizing the aperture of the sheath pipe.SOLUTION: In a pipeline laying method that lays a body pipeline in a sheath pipe 1 by carrying a plurality of carrying-in pipes 11 in the sheath pipe 1 and connecting the carrying-in pipes 11 with each other, when the carrying-in pipe 11 is a bent pipe 11b, the bent pipe 11b is loaded on a truck 18 in a carrying attitude of placing an outer peripheral side 16 of a bent part downward, and is carried. The bent pipe 11b is connected to a laid carrying-in pipe already laid in the sheath pipe while being rotated in a predetermined direction from the carrying attitude. |
