Tunnel noise reduction method based on foamed aluminum plate

The invention relates to a tunnel noise reduction method based on foamed aluminum plates, which comprises the following steps of: (1) putting a plurality of foamed aluminum plates serving as lining plates into a concrete template at intervals, and then pouring concrete to obtain a tunnel lining with the foamed aluminum plates; and (2) the obtained tunnel lining with the foamed aluminum plate is installed on a tunnel, the face, with the foamed aluminum plate, of the tunnel lining faces the tunnel, the foamed aluminum plate extends in the length direction of the tunnel, and then the noise reduction tunnel structure is obtained. Compared with the prior art, the foamed aluminum plates of the porous structure are arranged on the tunnel lining, the excellent noise reduction effect of reducing noise reflection and absorbing aerodynamic noise is achieved, the foamed aluminum plates are discontinuously arranged, materials are saved, the construction cost is low, and the method is suitable for tunnel construction of a