| 摘要 |
PROBLEM TO BE SOLVED: To provide a new technological means capable of more easily jacking a small diameter pipe at low construction cost with excellent workability at a job site having a linear shape with a curved section following a straight line section after a start. SOLUTION: This small diameter pipe jacking method in the linear shape having the curved section in the next place in succession to the straight line section from a starting shaft, is performed by arranging a shield machine, a pump cylinder, a forced pip and a guiding machine in the length up to a curve starting position from an arrival point; and advances boring by surveying by combining a survey by a laser in the straight line section and a survey by travel of a surveying robot in the straight line section and the curved section so that a jacking pipe (a Hume pipe) is arranged in the straight line length up to the starting shaft from the curve starting position. COPYRIGHT: (C)2007,JPO&INPIT |
