Sound insulation barrier for two sides of road

Abstract

The invention discloses a sound insulation barrier for two sides of a road. The sound insulation barrier sequentially comprises a sound insulation plate, an inner plate and a protection plate in the thickness direction. The plate surface of the sound insulation plate is a slightly fluctuating wavy surface; sound absorption holes are uniformly formed in the wavy surface; the inner plate is of a grid structure formed by arranging a plurality of sets of unit pore plates in an array mode. A taper hole is formed in each unit pore plate; the unit pore plates are connected through wedge-shaped pipes,the wedge-shaped pipes are smoothly communicated with the conical surfaces of the conical holes, conical circular ring pieces with different widths are evenly distributed on the inner walls of the wedge-shaped pipes, a plurality of V-shaped notches are formed in the conical circular ring pieces along the inner rings, and wedge-shaped strips with the length equal to that of the wedge-shaped pipesare installed on the V-shaped notches; sound absorption cotton is filled between the unit pore plates, and a honeycomb pore type metal plate is tightly attached to the back face of the inner plate andfilled with the sound absorption cotton. Through the arrangement of the multiple layers of sound insulation structures, the silencing and noise reduction effects of the road can be greatly improved,and noise pollution to the life of residents is reduced.

Description

technical field [0001] The invention relates to the field of road sound insulation, in particular to a sound insulation barrier used on both sides of a road. Background technique [0002] The traffic noise generated during the highway operation will inevitably seriously disturb the life, work, study and rest of the residents in the surrounding areas, especially the sensitive points. Traffic noise interferes with people's normal life and rest, and even affects people's physical and mental health in severe cases. Noise can reduce learning and work efficiency and work quality; in addition, traffic noise will also affect the economic development along the highway. For example, the economic benefits and production benefits of real estate, factories, and commercial buildings that are seriously affected by noise will decline to varying degrees, and the noise also directly affects the value of the surrounding land. [0003] Sound barriers are usually built on highways or viaducts ...

AI Technical Summary

Problems solved by technology

However, the existing sound barriers have a single structural form, most of which are plate structure corrugated treatment, etc., the noise reduction effect is limited, and the noise reduction frequency is single. Although a large number of

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