| 摘要 |
<p>The invention relates to a tunnel shuttering, divided into two sections (3a,3b) according to a dividing line lying in the plane of the horizontal panel of the shuttering and extending in the longitudinal direction of the tunnel. The tunnelsections may be coupled with one another by a number of connecting links (26), each of which having one end pivotally connected to one tunnel section about an axis standing in the longitudinal direction of the tunnel and adapted to have the other end removably "hooked" about a projection (32,33) on the other tunnel section. Furthermore an auxiliary connecting link (27) of a shorter length is provided, the ends of which are pivotally connectable to said other tunnel section and to an intermediate point of the connecting link respectively. Due to this the tunnel shuttering may be selectively used according to the half-tunnel-mode or according to the full-tunnel-mode. <IMAGE></p> |
