Recently, great progress has been made in the construction of the newly-built Nanning-Chongzuo Railway. At the construction site in Tinghong Road, Jiangnan District, Nanning, the first high-speed rail shield tunnel in Guangxi, Liucun Village Tunnel, was successfully completed, with the huge cutter head of “Zhuangmei” the shield tunneling machine breaking out through the hole. At present, the whole line of Nanning-Chongzuo Railway has entered the track-laying stage.
According to reports, the total length of the tunnel is 5,725 meters. Due to the dense buildings on the ground, Yunnan-Guizhou High-speed Railway and other railways, municipal roads and subway lines crisscross, it is extremely difficult to build railways from the ground. The owner of the project designed to pass through the ground in the form of large-diameter shield tunnel. Among them, 4,006 meters is constructed by a slurry balance shield machine with an excavation diameter of 12.86 meters. The tunnel is designed as a single tunnel with two lines, and high-speed trains will meet in the tunnel, which minimizes the environmental impact on the city.