| 摘要 |
A form carriage (1) which is placed inside a tunnel (2) with a longitudinal axis (3) of the form carriage parallel to an axis of the tunnel (2), and which has at least two structural members (14, 15) deformable in controlled, adjustable manner in respective directions perpendicular to the longitudinal axis (3) of the form carriage (1) and forming with each other an angle of other than zero, so as to selectively adjust the dimensions of the form carriage (1) in each of the two directions. <IMAGE> |
