Bridge and tunnel co-construction structure and construction method thereof

Abstract

The invention belongs to the technical field of municipal engineering, and provides a bridge and tunnel co-construction structure and a construction method thereof. The bridge and tunnel co-construction structure comprises a bridge girder, bridge piers, a frame type tunnel structure, bridge pile foundations and deformation coordination piles. The tunnel structure is located under the bridge girder, and the center lines of the tunnel structure and the bridge girder on the plane are aligned. The bridge pile foundations serve as the anti-floating piles of the tunnel structure, the closed frame type tunnel structure also increases the transverse rigidity of the bridge pier, and land is saved in space through a mode of an upper bridge and a lower tunnel, so the problem that land acquisition andremoval in cities are difficult is solved; and stress components of the bridge pile foundations and the tunnel structure are fully utilized in a structural system, so the total engineering investmentis reduced from multiple angles. Meanwhile, the construction method of the bridge and tunnel co-construction structure has less influence on the flood discharge function of riverway, and is high in feasibility and low in construction cost.

Description

technical field [0001] The invention belongs to the technical field of municipal engineering, and in particular relates to a bridge-tunnel co-construction structure and a construction method thereof. Background technique [0002] With the development of the city, the traffic volume has increased rapidly. When the old city is being renovated, it is often necessary to expand and rebuild the municipal infrastructure. It is often the case that the ground road is widened and the underground road is added at the same time. When crossing the river, the current conventional method is to cross the river in the form of a bridge on the ground road, and build a tunnel on the side of the bridge to form a composite traffic system. At this time, the tunnel needs to cross the river to go to the side (or both sides) of the road on the ground, which leads to the widening of the red line of land use, resulting in a large number of land acquisition and demolition problems. However, in the old ...

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Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a bridge-tunnel co-construction structure and its construction method, aiming at solving the problems in the prior art that when the compound channel crosses the river, it requires a lot of land, a large amount of land requisition and demolition, and a high total project investment

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