| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a multihole concrete pipe having a joint excellent in flexibility. SOLUTION: Two multihole precast concrete pipes 2a, 2b, each having a guide pipe containing part 3a of larger diameter than the body part on the jointing end side of through hole for a plurality of cables, are used as a set. A guide pipe 8 is inserted into stride the guide pipe containing part 3a of both multihole precast concrete pipes 2a, 2b, and an elastic packing material 7 is applied between the jointing end faces using the guide pipe 8. Both multihole precast concrete pipes 2a, 2b are then jointed by means of movement control bolts 10 penetrating the pipes in the axial direction while leaving some clearance.</p> |
