Noise travels in a straight line When it encounters an object, it will reflect back The function of sound insulation wall is to reflect the noise produced by automobile engine Just like the reflective wall principle, the noise heard outside the soundproof wall is correspondingly reduced Sound insulation barrier is mainly used to reduce noise sources such as highways, elevated composite roads and so on It is divided into pure sound insulation reflective sound insulation barrier combined with sound absorption and sound insulation composite sound insulation barrier the latter is a more effective sound insulation product Refers to the fence structure installed beside the railway and highway to reduce the impact of traffic noise on nearby residents

Sound insulation barrier is mainly used for sound insulation and noise reduction control of municipal facilities such as elevated roads, comprehensive roads, urban light rails, etc. Influence of traffic noise on nearby urban areas It can also be used for noise insulation and noise reduction of factories and other noise sources It is divided into simple sound insulation reflective sound insulation barrier and sound absorption composite sound insulation barrier, which is made of more effective sound insulation material Most of the sound insulation barriers are mixed products of sound absorption and sound insulation, which are characterized by targeted control of the generation and propagation of road noise For example, the friction sound between automobile and road surface or locomotive and track is diffracted by the upper part of screen body at the lower part of road surface, so the structure of upper and lower sound absorption and middle sound insulation is adopted in the design to effectively reduce the noise diffraction The transparent reflective sound insulation device in the middle of the sound insulation barrier can effectively block the propagation of sound waves and provide a wide field of vision for drivers and residents In the field of architectural acoustics, reverberation time and indoor acoustic environment are controlled by acoustic processing to meet the requirements of professional venues According to the application of sound insulation barrier, environmental sound insulation barrier can be divided into traffic sound insulation barrier, equipment sound insulation barrier and industrial boundary barrier According to the classification of materials, it can be divided into metal sound insulation barrier (metal louver metal shield hole), concrete sound insulation barrier (lightweight concrete high strength concrete), PC sound insulation barrier, FRP sound insulation barrier and so on According to different uses, it can be divided into the following categories: railway sound insulation barrier, highway sound insulation barrier, urban landscape sound insulation barrier, residential sound insulation barrier, etc.

Sound insulation wall also refers to the movable wallboard used in a recording studio or studio, usually with sound-absorbing material on one side and sound-insulating and reflective material on the other side Its function is to reduce the crosstalk of the sound source in the recording studio or adjust the sound quality of the sound source by using the different sound absorption characteristics on both sides of the wallboard

Highway sound insulation board is also called sound insulation barrier Highway sound insulation board is mainly composed of steel structure columns and sound insulation boards The upright post is the main stress component of the sound insulation board, which is fixed on the road anti-collision wall or the embedded steel plate on the track side by bolts or welding Sound insulation board is the main sound insulation component The sound insulation board of expressway is mainly composed of steel structure column and sound insulation board The upright post is the main stress component of the sound insulation board, which is fixed on the road anti-collision wall or the embedded steel plate on the track side by bolts or welding The sound-absorbing plate is the main sound-absorbing component fixed in the groove of the H-shaped column by a high-strength safety clamp to form a sound insulation screen The design of sound insulation board fully considers the impact safety and outdoor anticorrosion of elevated expressway, urban light rail and subway under wind load Beautiful appearance, exquisite production, convenient transportation and installation, low cost and long service life It is especially suitable for noise prevention of elevated highway, urban light rail and subway, and it is an ideal sound insulation and noise reduction facility in modern cities