The exit section of the Guifengshan Tunnel of Zhuzhao High -speed Railway is expected to be completed by the end of 2024

Jiangmen Daily News (Text/Picture Reporter/Chen Mindu) The reporter recently saw the construction site of the 4 target construction site at the Jiangmen to the Pearl River Delta Hub's airport section. For spraying operations, everyone has their own positions to speed up the construction (see the figure above). According to reports, the total length of the exit of the Guifengshan Tunnel from the Jiangmen to the Pearl River Delta Hub Airport Section of the Pearl High Speed ​​Railway is 2714.155 meters, and the design and construction period is 32 months. It is expected to be completed by the end of 2024.

The Jiangmen to the Pearl River Delta hub airport stood from Jiangmen to Jiangmen, and then introduced the Pearl River Delta Hub Airport to the west to connect the Guangzhan high -speed rail to the west. The total length of the line is about 77 kilometers, and the design speed is 350 km/h.

Among them, the Guifengshan Tunnel began in the Xinhui District. After wearing Guifeng Mountain, it passed through Pengjiang District. Finally, it was worn through the Longzhou Mountain. The total length of the tunnel was 15154.655 meters, which was about 9369.655 meters in length. The tunnel is a single hole and double -line tunnel. There are 1 vertical well, 1 diagonal well, and two shields to dismantle the hole in the 4th standard section.

"We now adopt the method of 24 -hour cycle operations, which are mainly divided into several processes such as excavation, initial support, and secondary lining. The primary concern of excavation tunnels is the hardness of the rock. Mainly, engineering geology is relatively complicated, so we have taken measures such as advanced support and pre -geological forecast to ensure construction safety. At the same time, because Guifeng Mountain is a 4A -level scenic spot, environmental protection is the focus of engineering management. To this end, we strictly control the tunnel of the tunnel. Drainage and use level 4 sedimentation tanks to achieve drainage to achieve standards. "Lu Rong, a technician of the 4th standard project department of Zhuzhao High -speed Railway Jiangmen to the Pearl River Delta Hub Airport Section.

The pearls of the Zhuzhao high -speed rail and the Guangzhan high -speed rail will fill the blank of no 350 kilometers per hour. After the project is completed, the Jiangmen Station and the Pearl River Delta Hub Airport will be connected in series to achieve seamless connection between the orbit and the aviation, and further enhance the status of the Jiangmen Zhuxi comprehensive transportation hub.

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