Sound barrier manufacturers believe that with the rapid development of cities in modern society, noise pollution problems have followed Noise pollution, as the four major pollution sources, does great harm to people's lives, so that it affects our living environment and makes us helpless, which seriously affects our lives How to control the noise pollution effectively and quickly to control the noise that would affect our normal life in an acceptable and unaffected range has become an urgent and important subject Noise is also systematically divided into four categories (mechanical noise, aerodynamic noise, traffic noise and social activity noise)

In the past, noise reduction had a relatively long construction period and high cost, and the effect of noise control was also suitable for that time Here, it is necessary to talk about noise reduction of sound insulation barrier. The sound insulation barrier occupies a small area and is fast in construction speed. In the field of noise reduction, the cost and maintenance cost are relatively close to the people, which can effectively block noise without destroying the overall architectural landscape This is the noise control method recognized in China at present

Sound barrier is mainly used to block the direct propagation of noise sources Setting a sound barrier between the noise source and the receiving machine can effectively control the medium and high frequency noise propagation of the noise source and isolate a local quiet environment in the noisy environment

Using sound insulation barrier to control noise pollution and keep one side quiet is one of the important contents of improving people's livelihood It is becoming more and more important in people's lives For example, construction noise refers to the noise generated during the construction process that interferes with the surrounding living environment Building noise comes from many aspects and is multi-category and complex According to the author's investigation, it mainly comes from four construction stages of pouring and decoration of earthwork moving piling structure The main noise pollution equipment is: bulldozers, excavators, loaders, various pile drivers, concrete mixers, chainsaws, cranes, elevators and other power machinery with different performances

The noise sources of sound barrier buildings will be different with the progress of sound barrier works, the construction machinery and methods used in construction, and the noise sources of sound barrier buildings will be different For example, in foundation engineering, there are earthwork blasting, trench excavation and leveling, site cleaning and so on In the main sound insulation barrier engineering, there are such operations as erecting steel skeleton or reinforced concrete skeleton, hoisting members, mixing and pouring concrete, etc. Activities such as transportation, loading and unloading of materials and components on the construction site of sound insulation barrier are frequent; In addition, there are all kinds of people shouting when they beat and hit old buildings and so on Because most of the construction machinery works in the open air, there is no shelter around it, and some machinery needs to move frequently, hoisting and installing work needs to work at high altitude, so some noise in the construction has the characteristics of sudden impact and discontinuity, which has a great influence on the surrounding residents