Bridgehead for road has ramps inside channel and removable bars extending between channel walls

摘要

A bridgehead comprises a channel (3) with a bottom (4) and two parallel walls (5) extending between an opening (2) in a transversal wall (1) and an opposite open end. Ramps with the same outline as the side walls (8) are placed in the bottom of the channel and removable bars (10) are placed in a transverse position above the channels walls. They are covering partially the channel opening.