Shield tunnel internal lane structure and construction method thereof

Abstract

The invention belongs to the technical field of underground structure engineering, and particularly relates to a shield tunnel internal lane structure and a construction method. The shield tunnel internal lane structure comprises lane plates and lane columns. The lane plates comprise a prefabricated lane plate and a cast-in-place concrete lane plate; and the two ends of the prefabricated lane plate are installed on brackets of the lane stand columns on the two sides of the prefabricated lane plate respectively, and cast-in-place concrete lane plates are poured between the prefabricated lane plate and the lane stand columns and on the prefabricated lane plate. The lane plates adopt a superimposed structure of the prefabricated lane plate and the cast-in-place concrete lane plate so that a formwork supporting procedure can be reduced, a mold is saved, a construction period is shortened, the prefabricated lane plate can be produced on a factory assembly line, construction is convenient, quality is easy to control, and requirements of rapid construction of the internal structure of a tunnel and a performance structure of the lane plate can be satisfied; in addition, concrete is pouredbetween the prefabricated lane plate and the lane stand columns and on the prefabricated lane plate to form the cast-in-place concrete lane plate, and integrity of the prefabricated lane plate, the cast-in-place concrete lane plate and the lane stand columns is improved.

Description

technical field [0001] The invention belongs to the technical field of underground structure engineering, and in particular relates to a lane structure inside a shield tunnel and a construction method thereof. Background technique [0002] With the continuous development of China's urbanization, the number of urban population and the number of motor vehicles have increased sharply, and the contradiction between people's demand for urban road traffic and the actual capacity of roads has become increasingly serious. Therefore, more and more cities have begun to study Underground space development projects are launched to solve people's travel problems. How to maximize the utilization of underground space in limited underground space has become a hot topic at present. [0003] In the construction of most urban tunnels in our country, shield tunneling construction, as an advanced construction method, has the advantages of fast construction speed, high degree of safety, and litt...

AI Technical Summary

Problems solved by technology

During the construction of the internal structure of the shield tunnel, the traditional driveway slab construction adopts the cast-in-place concrete structure. The cast-in-place structure has good integrity, but it requires on-site formwork and concrete pouring. The process is complicated, and the construction space inside the tunnel is limited, resulting in difficulties in construction organization. , reduced work efficiency, long construction period

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