What changes can the sound barrier on the road bring to the living environment?

Noise pollution is a very serious problem, and long-term noise in the environment will destroy people's hearing. Affect people's sleep quality and even insomnia. Noise pollution comes from vehicles, factory production, building construction machines, etc. The sound barrier produced by Anping Heng Ai effectively blocks noise and plays a good role in absorbing noise. There are many types of sound barriers that can be used in the home and use soundproof panels, which effectively shield noise and create a quiet environment.

The so-called noise control standard is a standard for judging the permissible noise level under various conditions and for various purposes. The evaluation criteria can be human tolerance to vibration, exposure to strong noise for hearing impairment, reliable language communication under noise, allowable noise levels for various buildings, and residents' reactions to noise. This standard is statistical. As an example to illustrate, a noise level can pose a risk of injury to an individual's hearing, but it does not have a significant effect on others. And people's reactions change with time. How they react depends largely on their personal experiences and their environment.

In order to more vividly introduce the statistical nature of this standard, consider a plant with a very high level of continuous noise level and stay in this environment for eight hours. At this time, a safe upper limit can be established for this kind of noise spectrum. The hearing loss standard, if the noise level does not exceed this upper limit, the majority of the factory population will not damage the hearing, but if the ceiling is increased by X dB, only 90% of the talent will not be damaged. When noise control personnel obtain the following information: the percentage of the number of persons not injured, the length of each person's exposure time, and the amount of hearing loss, this standard can be used to determine the extent to which the noise must be reduced.

What provisions should be made for the design of highway noise barriers ?

1 The structural design of road noise barriers should comply with the relevant national standards.

2. The structural form of the road noise barrier shall be determined according to the requirements of the project and the environment. The sound-absorbing composite structure shall adopt the integral component.

3. The road noise barrier structure design should consider self-weight, wind load, train pulsation and other loads. The design load of the sound insulation barrier should be integrated according to the loads that may act simultaneously in the process of use, and should be designed according to the most unfavorable conditions.

4. The sound insulation barriers of bridges and the connections between the bridge beam sections and subgrade acoustic barriers and foundations should adopt the form of cast-in-place concrete links or bolted links.

5 Sound barriers for roads shall be provided with expansion joints and shall be sealed. Bridges shall be provided with soundproofing barriers in the form of swinging wedges and ladders, and expansion joints of bridge noise barriers shall be provided at the joints of beams.

If used on roads and railways, road noise barriers and railway noise barriers can be used, which will provide a comfortable and tranquil environment for residents living near roads and near the railways. It also gives us a beautiful way to travel. landscape.