| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a jacking pipe, by which working yards are reduced even in both the starting side and the arrival side and which is proper to the execution of works on a narrow land when a pipe line having inclined sections on the starting side and the arrival side is constructed into a ground. SOLUTION: The jacking pipe is composed of a plurality of the mutually butting jacking pipes 1 and 1' and a connecting member 2 mutually connecting the rear end section of the preceding jacking pipe 1 and the front end section of the succeeding jacking pipe 1'. Outward rear-end engaging collar section 21 is formed to the outer circumferential section of the rear end section of the jacking pipe 1 and the same outward front-end engaging collar section 14 to the outer circumferential surface of the front end section of the pipe 1' respectively, and the connecting member 2 is formed in an inward channel shape. Thrust transmission members 27 and 27 made of a metal plastically deformed by a fixed or more of compressive force are interposed among opposed surfaces among each engaging collar section 14 and 21 and the connecting member 2 engaged with the engaging collar sections, and pulled and laid in lower holes by applying tensile force, and point touches are prevented by the plastic deformation of the thrust transmission members 27 and 27 in bent section.</p> |
