Combined traffic facility comprising land-changing type `halberd`-shaped bifurcate bridges and bifurcate tunnels

Abstract

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.

Description

technical field [0001] The present invention belongs to the traffic facilities for smooth motor vehicle traffic at crossroads, in particular two independent bifurcated arch bridges and two independent bifurcated tunnels are combined to enable straight motor vehicles at crossroads (hereinafter referred to as: straight vehicle) Traffic flow facilities that do not conflict with left-turning motor vehicles (hereinafter referred to as: left-turning vehicles) without intersecting and occupying lanes. Background technique [0002] At present, the traffic at level crossings of international and domestic urban arterial roads is very crowded and often blocked, which is a common problem in major cities all over the world. The reason is that two roads intersect at a level. At the intersection, the two roads overlap to become one road. Motor vehicles on the two roads can only share one road at the node, and half of the road resources are lost. Coupled with the mixed traffic of pedestria...

AI Technical Summary

Problems solved by technology

Its disadvantages: drivers must recognize the traffic signs clearly at the crossroads. Once they do not see clearly or after seeing clearly, they cannot change lanes, which will lead to traffic jams at the crossroads when they change lanes

[0004] Chinese patent 200820230509.5 "Direct Left and Right Turning Interchange Overpass" discloses a kind of overpass. Since the patent claims and instructions describe the technical solution very clearly, it seems that the net frame overpass can be understood with the accompanying drawings. The structure and defects are as follows: 1. Unnecessary height and length are added: at the position of the ground branch road away from the intersection, the straight bridge passes under the left-turn bridge on the opposite side and then continues for a section of the bridge body before connecting with the ground, so that the upper floor The height of the bridge from the ground is very high, which increases the total length of the bridge, which makes the entire bridge body tall, long and large, which wastes the cost of building the bridge and blocks the urban landscape.

2. Partial damage leads to overall damage: After the left-turning bridge passes under the straight bridge and the left-turning bridge of the left ground branch, it is connected to the ground after being leveled with the lower bridge section of the straight bridge on the right ground branch. The height of the upper bridge from the ground is very high, the total length of the bridge is increased, and the entire bridge body is connected into a large-scale integral bridge. Once there is a geological change in the part of the large-scale integral bridge, if its part is damaged, the entire large-scale integral bridge will be damaged. overall bridge damage

3. The entire bridge takes up too much area in the form of a net frame: the overall shape of the overpass is a net frame bridge body with two diagonal lines, and the minimum circular diameter of the open space without buildings at the intersection is required to be 115 meters, while in the old There are almost no two-way six-lane crossroads in the urban area with a diameter of 115 meters, that is, the overpass provided by the attached drawing of the manual can hardly be used for the two-way six-lane crossroads in the old city

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