Internal double-layer prefabricated traffic lane structure of shield tunnel

Abstract

The invention provides an internal double-layer prefabricated traffic lane structure of a shield tunnel. The internal double-layer prefabricated traffic lane structure mainly comprises a square fabricated component of a lower lane, a lane foundation, a vertical column of an upper lane, a lane column contact beam, a vertical beam of the upper lane and an upper fabricated lane board, wherein concrete foundations are cast at the both sides of the square fabricated component of the lower lane, so as to form a lower lane road surface structure and a lane foundation structure; the vertical column of the upper lane, the lane column contact beam and the upper fabricated lane board form a cast-in-place reinforced concrete structure; brackets are arranged at the inner side of the vertical beam of the upper lane; and the upper lane column contact beam is erected across the brackets at the inner side of the vertical beam of the upper lane, so as to form an entire structure by casting concrete. According to the internal double-layer prefabricated traffic lane structure provided by the invention, the standardization, the module production and the rapid construction speed can be realized, so that the large amount of labor and materials in field construction can be saved, and the better social benefits can be obtained.

Description

technical field [0001] The invention relates to the technical field of tunnels and bridges, in particular to a structure of prefabricated components used in a double-layer driveway inside a shield tunnel. Background technique [0002] With the development of urban underground space, large-diameter, long-distance shield tunnels have been widely used in the construction of urban expressways. Tunnel road network planning continues to increase, and tunnel passage conditions are more complex. The current river-crossing and sea-crossing tunnels are developing in the direction of deep, large, long, and difficult. Wait for a series of difficulties. [0003] The double-layer driveway structure inside the shield is generally a cast-in-place concrete structure. Concrete cast-in-place construction generally adopts the method of simultaneous construction of multiple trolleys. Each construction section needs to carry out tasks such as positioning trolleys, binding steel bars, pouring co...

AI Technical Summary

Problems solved by technology

The internal space of the shield tunnel is small, densely populated, and there are many equipments. When the internal driveway structure of the shield tunnel is constructed simultaneously with the shield tunnel, the construction organization is difficult and there are many safety hazards

[0004] There are many construction procedures for cast-in-place concrete, the construction period is long, and the construction speed is slow

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