Acoustic channel

On June 21, the first fully enclosed sound barrier project suitable for 350 km / h high-speed railway was completed in China. The project is located in Guba super major bridge section of Jingxiong intercity railway. The main structure adopts circular steel frame, and the surrounding area adopts metal sound insulation plate unit with a total area of about 22000 square meters. It is equivalent to building a sound insulation tunnel on the high-speed railway bridge, which reduces the noise to the greatest extent. The picture shows the construction personnel debugging the performance of sound insulation board on Guba super large bridge. Gan Xin