The Shangqiu-Hefei-Hangzhou Sound Barrier Project is designed for the Shangqiu-Hefei-Hangzhou Railway project. This railway stretches from Shangqiu, Henan Province, passing through Hefei Station in Anhui Province, and ultimately reaching Hangzhou East Station in Zhejiang Province, covering a total length of 794.55 kilometers, including important hubs such as Shangqiu, Fuyang, Hefei, and Wuhu. It is a high-speed railway with a design speed of 350 km/h.
In 2019, our company undertook the supply task for 30 kilometers of sound barriers for the Shangqiu-Hefei-Hangzhou Sound Barrier Project. The sound barrier materials meet the requirements for high-speed train pulsation force, capable of withstanding fatigue impacts of at least 4 million cycles, ensuring the safe operation of the railway. The sound-absorbing materials inside the sound barrier units maintain their sound absorption performance even in rainy and snowy weather conditions. Additionally, corresponding structural measures have been taken between the components of the sound barrier to resist train pulsation forces, withstand expansion and contraction deformations, avoid noise leakage, and prevent secondary structural noise, ensuring the effectiveness of the sound barrier.
According to design requirements, the noise reduction coefficient of the sound barrier should be no less than 0.7, and the sound insulation volume should be no less than 30 dB. Under normal operating conditions, the service life of the sound-absorbing and sound-insulating unit panels of the sound barrier is 25 years.
