What are the characteristics of high-speed sound barriers? What should be paid attention to during installation?

High-speed sound barriers have the characteristics of reducing road traffic noise and improving the aesthetics of road construction. However, some issues need to be considered during installation, such as the foundation should be constructed simultaneously with the subgrade. We will introduce the relevant content in detail below.

Characteristics of high-speed sound barriers.

1. Reduce driving noise on roads

Ensure that drivers can accurately judge various driving behaviors, thereby improving driving safety. Therefore, after the introduction and installation of high-speed sound barriers, its technical characteristics will be more diversified, and its applications on different roads will be more extensive. It can be seen that the design principles are more advanced and scientific.

2. Improve the aesthetics of road construction

Since high-speed sound barriers are mainly installed on both sides of the road, it can be said that there will be a great improvement in safety and aesthetics. Therefore, during the processing and design process, manufacturers can match appropriate colors according to customer requirements to show a more beautiful and fashionable effect, which meets the effect of modern road decoration, and the characteristics shown will be better and better.

3. During the processing of high-speed sound barriers, classic spray lines are used, which significantly improves the flatness and uniformity. It can be seen that when promoting this barrier material on the market, the technical advantages in processing are more obvious, and it has been affirmed and trusted by customers. Therefore, in the process of market sales, reaching the processing standards that satisfy customers, the quality in all aspects will be significantly improved.

The foundation of the sound barrier built on the highway should be constructed simultaneously with the subgrade, and it should not be damaged or affect the stability and safety of the subgrade due to its construction. The construction of the sound barrier foundation should be carried out after the formation of the subgrade body, before the track laying and cable trench construction. Before construction, the location of various pipelines on the subgrade should be checked; according to the basic Size of the sound barrier and its position on the shoulder, when cutting the groove, it is forbidden to damage various pipelines. The materials and construction methods used in the pre-embedded anchor rods and anchor hole grouting construction of the soundproof foundation should meet the design requirements and shall not affect the safety and stability of the subgrade. Expansion joints should be constructed according to the design requirements of the sound insulation foundation. Expansion joints are installed every 20~30m in the sound insulation foundation. During construction, the specific location of the expansion joints should be determined according to the site topography.

Drainage pipes should be pre-embedded in the sound insulation foundation according to the design requirements, and the outlet of the drainage pipes should not scour the subgrade; the concrete foundation construction at the intersection of the ballastless track and the drainage pipe of the sump should not damage the drainage pipe. A 100mmL PVC pipe is buried every 2m at the top of the foundation to drain rainwater to the shoulder surface inside the sound barrier; a 75mm straight PVC pipe is buried every 4m at a slope of 2% in the variable section in the middle of the foundation to drain the seepage water from the subgrade body and the drainage of the cable trench; the sump connecting drainage pipe between the subgrade lines of the ballastless track line can be cast on the foundation. The subgrade sound barrier should be equipped with drainage facilities, and the external drainage outlet should avoid scouring the subgrade slope and prevent sound leakage. After the sound insulation foundation is filled with concrete, its surface should be flush with the subgrade surface. The waterproof layer between the sound insulation foundation and the cable trench, the contact net support, and the shoulder surface should be made according to the design requirements. Asphalt concrete should be used as the waterproof layer in the gaps between the foundation and the cable trench, the contact net support, and the shoulder.

The above is the complete answer to "What are the characteristics of high-speed sound barriers, and what should be paid attention to during installation?" If you have any questions or suggestions, please feel free to contact us.

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