| 摘要 |
PROBLEM TO BE SOLVED: To provide a shield jacking and assembly simultaneous construction method for controlling attitude of a shield machine during simultaneous construction easily and preventing the shield machine from requiring a special structure to perform simultaneous construction. SOLUTION: This method comprises a resultant force action point control process for controlling direction of the shield machine by middle folding operation so that a resultant force action point F by thrust of all the pipe jacks 4 comes to an arbitrary target point O of the shield machine 1, a drilling jack partial pulling-back process for pulling back partial drilling jack by reducing pressure while controlling pressure of the pipe jack to achieve thrust ratio for not changing the resultant force action point after the control, and a jacking/segment assembly simultaneous parallel process for assembling segments of the pulled back pipe jack part while letting the shield machine advance by controlling so that pressure of the pipe jack except the pulled-back one becomes thrust ratio not changing the resultant force action point in the same way. COPYRIGHT: (C)2005,JPO&NCIPI |
