| 摘要 |
A shuttering field having a cross pipe (16) passing through it, is without an outer and upper shuttering panel (4). Instead, a chamber panel (7) is inserted into the guide channels of the supports (1,2). Trench sheeting planks (12) are fitted into the chamber panel, and are vertically moveable. The planks are longer by at least 50% than the height of the upper and outer shuttering panels. Instead of inner and lower shuttering panels (5), a support boom (15) is inserted into the guide channels of the supports. The boom supports the sheeting planks in the lower area.
|
