广东首个时速350公里高铁“隔音隧道”完工

Core Points - The completion of Guangdong's first 350 km/h high-speed rail "soundproof tunnel" marks a significant milestone in infrastructure development [1] - The Guangzhan high-speed rail project includes a total length of approximately 10.38 kilometers, featuring two major bridges [1] - The project aims to reduce noise pollution from high-speed trains, particularly in residential areas, by installing a 2.5 km circular sound barrier [1] - The high-speed rail is a crucial part of China's "eight vertical and eight horizontal" high-speed rail network, enhancing connectivity between the Guangdong-Hong Kong-Macao Greater Bay Area and other regions [1] - Once operational, the rail line will significantly shorten travel time, allowing for a 90-minute journey between Guangzhou and Zhanjiang [1]