| 摘要 |
PROBLEM TO BE SOLVED: To prevent expansion between butting end faces of jacking pipes from becoming larger than a fixed value at a curve section, and to carry out pipe jacking along a designed line in curve pipe jacking. SOLUTION: The jacking-pipe assembly has constitution, in which sections among the butting end faces of a plurality of jacking pipes 1 are connected by connecting means 20 having constraining members 18 constraining the sections among the end faces so as not to be expanded at values larger than a fixed value and the connecting means 20 are faced to the outside of a curve, and expansion larger than the fixed value on the outside of the curve is prevented by the constraining members 18. |
