Combined traffic facility comprising land-changing type `halberd`-shaped bifurcate bridges and bifurcate tunnels
2012
The invention discloses a combined traffic facility comprising land-changing type `halberd`-shaped bifurcate bridges and bifurcate tunnels. The combined traffic facility belongs to a facility combined by two independent bifurcate arch bridges and tunnels and enabling the traffic at crossroads to be unobstructed. A merged bridge of a left-turning bridge and a straight-going bridge before bifurcation turns left in the high position area to form `halberd`-shaped bifurcate bridges in the land-changing manner, and the straight-going bridges of the two `halberd`-shaped bifurcate bridges are combined to form a grouping bridge in parallel; the combined traffic facility is also provided with a group of grouping tunnels with the same structure, and the straight-going bridges of the grouping bridge and the straight-going tunnels of the grouping tunnels form a three-dimensional crisscross structure. The combined traffic facility has the advantages that the destruction degree of local geological accidents to an integral combined bridge is reduced, the merged lane section is longer and cannot cause the traffic jam easily, vehicles can directly turn left without driving redundant roads, pedestrians can pass through under the combined bridge, and a small bidirectional crossroad with six lanes can realize full intercommunication.
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