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&Nbsp; Highways and expressways are places where sound barriers are commonly used, as well as places where various types of sound barriers are commonly used. The upright sound barrier, curved sound barrier, and folded sound barrier we usually see
Corner sound barrier on highways and highways
You can see it at any time on the road.
&Nbsp& Nbsp; The cars driving on the current highways inevitably cause traffic noise pollution to residential areas, schools, and other areas along the route. In acoustic terms, we refer to these areas as
Sound environment sensitive points.
&Nbsp& Nbsp; In terms of road sound barriers, Zhenxuan Transportation has accumulated rich experience in design and construction. The sound barriers designed by Zhenxuan Transportation are divided into reflective sound barriers for sound insulation, and sound absorbing and
A composite sound barrier that combines sound insulation, the latter being a more effective sound insulation method. At present, most sound barriers use a combination of sound absorption and insulation products. The characteristics of this type of product are
It is a targeted control of the generation and transmission characteristics of road noise. If the sound of cars rubbing against the road or locomotives rubbing against the track is located below the road, the sound can be diffracted through the upper part of the screen.
Therefore, a structure with upper and lower sound absorption and middle sound insulation is adopted in the design, which can effectively reduce the diffraction of noise; Transparent reflective soundproof panels are used in the middle of the sound barrier,
Can effectively interrupt the propagation path of sound waves; At the same time, it also provides a broad visual environment for drivers and residents. In the field of architectural acoustics, through acoustic treatment, reverberation time and indoor environment can be controlled
Sound environment, meeting venue requirements.
Sound barriers can generally be divided into upright, folded, curved, semi enclosed, and fully enclosed types based on their geometric shapes< Br style="padding: 0px; margin: 0px;"/>
Vertical sound barrier: refers to a flat reflection type that stands upright next to a road.
Sound barrier. Due to the simple use of materials, convenient construction, low cost, and good compatibility with the environment, the characteristics of straight wall sound barriers can generally be effectively improved by increasing their height.
Although an increase of 1m in height can result in a 1.5dB (A) increase in IL. But it also brings negative effects such as reducing the brightness of the teaching area and interfering with the driver's line of sight< Br style="padding: 0px; margin: 0px;"/>
Folded and curved sound barriers: generally used in situations where noise reduction requirements are high but the height of the sound barrier is limited. Turn the upper part of the sound barrier towards the direction of the road, facing one of the
The side is made into an sound-absorbing surface, which can achieve good noise reduction effect. The support components of the sound barrier are mostly made of H-shaped steel. The folding wall type sound barrier can improve the noise reduction effect< Br style="padding: 0px; margin: 0px;"/>
Semi enclosed sound barrier: Semi enclosed sound barriers are suitable for urban traffic arteries and densely populated areas with high-rise buildings on both sides, and their noise reduction effect is very good. Fully enclosed sound barrier: Fully enclosed sound
Barrier is suitable for urban elevated bridges, which effectively reduces noise and prevents high-altitude debris from falling, but its cost is relatively high. In summary, when purchasing a sound barrier, the selection of sound should be based on environmental conditions
The shape and structure of the barrier.