Lightweight composite material supporting structural component for track traffic tunnel and mounting method thereof

Abstract

The invention discloses a lightweight composite material supporting structural component for a track traffic tunnel and a mounting method of the lightweight composite material supporting structural component. The structural component comprises a lining reinforcement band support fixed to the inner surface of a tunnel segment, a carbon fiber composite section lining reinforcement band pasted on the lining reinforcement band support and a cement paste injection pipe joint, the reinforcement band is filled with cement paste, and the cement paste injection pipe joint is used for injecting the cement paste into the carbon fiber composite section lining reinforcement band. The carbon fiber composite section lining reinforcement band comprises an external supporting shell, a soft carbon fiber connecting mesh in the space of the external supporting shell and a flexible carbon fiber braided band wrapping the outer portion of the external supporting shell, and the external supporting shell is an elastic hard carbon fiber composite plate. The structural component does not intrude in the train running safety boundary, a tunnel lining overlaying layer is effectively formed, a tunnel is reinforced fast under the severe condition that allowed maintenance time is short, the overall rigidity and bearing capacity of the tunnel are greatly improved, and occupied space is small.

Description

technical field [0001] The invention relates to a lightweight composite material supporting structure for rail transit tunnels and an installation method thereof, which belongs to the application of new materials in the technical field of construction and also belongs to the technical field of new composite materials. Background technique [0002] The urban rail transit tunnel structure is mainly assembled by single-layer segments, that is, the main body of the tunnel structure is formed by completely prefabricated assembled segments connected by bolts. Similar to the multi-hinge ring structure with almost no constraints, after long-term subway operation, it is found that there is tunnel deformation, especially when the number of high-rise buildings on the outside of the subway line increases, which has aroused great concern for safety. The external geotechnical environment of the tunnel has changed constraints due to the new construction, and its deformation under the later...

AI Technical Summary

Problems solved by technology

Although a relatively safe tunnel support structure can be formed, it is difficult to transport heavier and larger components, and it will also affect the safe operation limit of the train

[0004] CN2921279Y proposes to use the structure in the tunnel to recast the lining layer. Such a construction method is not feasible in the tunnel for maintaining train operation, even if the "skylight" time is used (the operating time of the subway is fixed every day, such as early 5:30 to 11:30 p.m., followed by a time for track inspection and maintenance at night, known in the industry as "skylight" time) could not complete the work

[0008] CN103775106A proposes to utilize reinforced concrete to build up the supporting structure of inner liner again, obviously also can't adapt to the requirement of urban rail transit tunnel to train safe operation limit, and also increases the difficulty of construction, this method is to maintain the construction in running tunnel not allowed

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