| 摘要 |
PROBLEM TO BE SOLVED: To provide an erector control device and method of a shield machine, capable of substantially shortening the time needed for correction of yawing angle &thetas; during coarse positioning without controlling a new segment by a manual operation by visual observation or automatically at a low speed, thereby shortening the positioning time of the new segment and improving the workability.SOLUTION: A yawing angle &thetas;A equivalent to a plurality of existing segments 1 connected with a new segment 2 in an axial direction of a tunnel at a position target value P of an origin O and an angle target value around three axes is set as a yawing angle &thetas; for coarse positioning of the new segment 2 (S4), and by an erector device 10, the new segment 2 is yawed to the yawing angle &thetas; for coarse positioning and is coarsely positioned. |
