2022/05/31

The principle and types of highway noise barriers

Principles and Types of Highway Noise Barriers Highway Noise Barrier Principles Generally speaking, highway noise barriers can reduce high-frequency sound by 10~15 dB. The height of the noise barrier can be planned according to the distance from the sound source to the receiving point. Assuming the barrier height is doubled, the noise reduction can increase by 6dB. To improve the noise reduction effect of the noise barrier, the noise barrier should be as close as possible to the sound source or receiving point. Highway noise barriers can block the straight-line propagation of sound, allowing diffracted sound to be sufficiently attenuated, but their impact on transmitted sound can be ignored. When the barrier is placed between the sound source and the receiving point, and the barrier is infinitely long, sound waves can only scatter from above the obstacle, forming a sound shadow zone, similar to how light is blocked by an object, forming a shadow.

2022/05/31

A simple explanation of highway noise barrier design and height selection

A simple explanation of highway noise barrier design and height selection Highway noise barrier planning and design (1) Selection of highway noise barrier materials and structure Considering its own sound insulation function, the sound insulation ability of the sound insulation screen is generally 10db greater than the required sound level attenuation of the "sound shadow area", so as to prevent the sound insulation screen from affecting the sound propagation, and at the same time prevent water leakage from the holes in the sound insulation screen, and pay attention to the sealing of the structure.

2022/05/31

Design requirements and repair techniques for the top of highway noise barriers

Design requirements and repair techniques for the top of highway noise barriers How to make highway noise barriers both beautiful and practical? People who often drive on highways will find highway noise barriers. With the continuous advancement of technology, today's noise barriers are not only diverse in style but also very beautiful. More importantly, they are practical, and highway noise barrier manufacturers provide more convenience for people.

2022/04/24

Basic knowledge of noise barriers

A noise barrier is a device placed between a sound source and a receiver to significantly reduce the propagation of sound waves at the receiver's location, thereby mitigating noise pollution.

2022/04/11

How to choose a high-speed rail noise barrier? What kind is good?

Railway noise barriers (trackside noise barriers) are noise barriers used on both sides of railways and high-speed railways to reduce noise pollution caused by passing trains to nearby residents.

2022/04/11

Factory area noise barrier manufacturer

The higher the density of the factory area sound barrier, the better the sound insulation effect. 1. High sound insulation: The average sound absorption should not be less than 35dB; 2. High sound absorption coefficient: The average sound absorption coefficient should not be less than 0. Hollow bricks and aerated blocks with holes generally have good sound insulation effects due to their increased surface area; of course, there are also sound-absorbing cotton felts and the like. Sound barriers, also known as baffles, are commonly called sound screens. Mine sound barriers, mine sound barrier construction cost and manufacturer price. It can be nailed or glued. Perlite fireproof board: Perlite board, floating bead board, and vermiculite board are hollow plate materials made with low-alkali cement as the base material, perlite, glass microbeads, and vermiculite as aerated filling materials, and some composite materials added. They are characterized by light weight, high strength, good toughness, fire prevention and heat insulation, and convenient construction, and their processing technology is simple. It has the advantages of low investment, fast construction speed, and obvious landscape effect. The cooling tower sound barrier is a combination of assembled modules that can be assembled arbitrarily, durable, and easy to install and maintain. Cooling tower sound barriers are increasingly recognized by some residential areas and office buildings, and they can greatly reduce some of the noise in our lives.

2022/04/11

What are the main features and hidden functions of highway noise barriers?

Highways are the most common places to use noise barriers, and their main features are as follows: 1. Flexible and convenient installation and use. Noise barriers are mostly designed in a modular way, so they are very easy to disassemble and install. 2. Powerful function: The noise barriers on both sides of the highway have good sound absorption and sound insulation effects, and also have good durability, and can be used for many years. 3. Good sound insulation effect. The average sound insulation of noise barriers is about 36dB, and the average sound absorption coefficient is high, maintaining around 0.83.

2022/04/11

Several key elements for installing highway noise barriers?

Road environment is an important part of the urban environment. The three major spaces of a city, namely traffic space, building space, and open space, and the relationship between the elements of each space play a decisive role in the urban environment. Roads are a city's corridors and showcases, the main places where people understand and experience the city. The linear environmental characteristics of roads directly reflect the city's appearance and personality. Therefore, the landscape design of noise barriers should conform to the characteristics of the city's appearance, consider people's visual feelings, reduce the sense of oppression while meeting the noise reduction function, strive for coordination between the noise barrier and the main project and the surrounding landscape, reflect the rhythmic beauty of the noise barrier project, and enable road users to obtain psychological comfort, so that the noise barrier project can also become a beautiful landscape. In the specific design, methods such as three-dimensional modeling layout, pattern combination, material selection, color matching, and plant landscaping can be used to meet the needs of most viewers.

2022/04/11

What factors influence the design of noise barriers to improve sound attenuation?

Many factors affect the insertion loss of a noise barrier, such as its relative position, height, and shape. Highway noise barriers have various names and different materials.

2022/04/11

Applicability of highway noise barriers

The construction and operation of highways have driven rapid regional economic development, but have also brought noise pollution to sensitive areas such as residents, schools, and hospitals along the route. Noise barriers, due to their characteristics of occupying less space and significantly reducing noise, have been widely used on highways. However, most designs are extremely unreasonable, with arbitrary and blind choices in noise barrier design, selection, and material construction.