BENT PIPE JACKING PIPE AND BENT JOINT FOR CURVE PIPE JACKING METHOD

摘要

PROBLEM TO BE SOLVED: To provide a pipe jacking pipe and a joint hardly causing the damage of a concrete pipe and the axial discrepancy of the pipe jacking pipe by dispersing stress applied to a bent part in the case of burying the pipe jacking pipe by a curve pipe jacking method.;SOLUTION: Two ring-like fitting boards 4, 8 protrusively provided with bearing parts 1, 1 and 5, 5 on both sides are provided in the opposed state of the bearing parts 1, 5 and bendably connected being rotatably fitted like a hinge by two shafts 9, 9 to constitute a bending member X. Chipping stop bands 2, 6 and anchors 3, 7 are provided outside the ring-like fitting boards 4, 8 of the bending member X to integrally mold concrete pipes 10, 11. An elastic cover 12 is fitted to cover a bend part.;COPYRIGHT: (C)2000,JPO