A vibration and noise reduction structure of a highway tunnel and a construction method thereof

Abstract

A vibration and noise reduction structure of a highway tunnel includes tunnel segments and ballast beds, A first arc-shaped steel bar and a second arc-shaped steel bar are equally spaced between the ballast bed and the tunnel segment, A first arcuate steel bar is oriented opposite to a second arcuate steel bar, At that bottom of the tunnel segment, a steel pipe pile is penetrate between the adjacent first arc-shaped steel bar and the second arc-shaped steel bar, A dome form is arranged on the inner side of the tunnel segment, A metal mesh is arrange on that outer side wall of the dome form andthe inn wall of the tunnel segment, A lay of sound-absorbing material is sandwiched between that two metal mesh, the invention also discloses a construction method of the vibration and noise reduction structure of the highway tunnel, At that same time, the first arc-shape steel bar and the second arc-shaped steel bar have certain deformation performance and certain vibration damping effect, and the sound-absorbing material lay is arranged on the tunnel wall, so that the sound-absorbing effect is achieved, and the noise brought by echo is reduced.

Description

technical field [0001] The invention relates to the technical field of engineering construction, in particular to a road tunnel vibration and noise reduction structure and a construction method thereof. Background technique [0002] A tunnel is an engineering building buried in the ground, and it is a form of human use of underground space. Tunnels can be divided into traffic tunnels, hydraulic tunnels, municipal tunnels, and mine tunnels. The structure of the tunnel includes two parts, the main building and the auxiliary equipment. The main building is composed of the tunnel body and the tunnel door. The auxiliary equipment includes car avoidance tunnels, fire protection facilities, emergency communication and waterproof and drainage facilities. The long tunnel also has special ventilation and lighting equipment. [0003] At present, the vibration reduction of subway tunnels is mainly through flexible materials such as rubber or steel springs. Such vibration reduction mea...

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Problems solved by technology

[0003] At present, the vibration reduction of subway tunnels is mainly through flexible materials such as rubber or steel springs. Such vibration reduction measures reduce the vertical stiffness of the tunnel structure and increase the vertical displacement, thus accelerating the wave wear of the rails, and the vibration reduction effect is poor. Moreover, when driving in a tunnel, noise pollution is often generated due to the large echo

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