China News Agency, Maoming, April 4 (Liang Shengyang, Sheng) On the 4th, the underwater geological drilling survey task of the Yuezhujiangkou tunnel of the Shenzhen-Jiangmen railway advanced section of the Shenmao high-speed railway was successfully completed, and the preliminary design drilling requirements have been met.
The Shenmao Railway is an important part of China's "eight vertical and eight horizontal" high-speed rail network-an important part of the coastal express railway. It is also a fast railway connecting the Pearl River Delta with western Guangdong and Hainan. The high-speed rail starts from Shenzhen in the east, passes through Dongguan, Guangzhou, Zhongshan, Jiangmen and Yangjiang, and west to Maoming. The main line is 388 kilometers long and is divided into two phases of construction from Jiangmen to Maoming and Shenzhen to Jiangmen. Completed and put into operation in July 2018.
According to the Jiangmen Engineering Construction Headquarters of the China Railway Guangzhou Bureau Group, the Shenmao High-Speed Rail Yuezhujiangkou Tunnel crosses the Chuanbi Waterway, the main channel of the Pearl River Estuary, 400 meters. The nearby geological conditions are extremely complex. Chuanbi Waterway is the main channel of Guangzhou Port and other Pearl River Delta port groups. It is the waterway transportation artery connecting Guangdong and Hong Kong-Macao Greater Bay Area with domestic and foreign ports. It has 150 ships of 3,000-ton or larger ships per day. To ensure the safety of the tunnel structure and construction safety, it is necessary to provide a working interface for underwater drilling and geological survey by closing the main channel and opening a temporary channel, and finally provide scientific support for the preliminary design. After the Shenzhen-Mao Railway is opened to traffic, Shenzhen to Maoming will be shortened from nearly 7 hours to less than 3 hours.
It is understood that the Shenzhen-Jiangmen Railway feasibility study report of the Shenmao High-speed Railway was jointly approved by China Railway Group and Guangdong Province in early March this year. The line leads from the Xili Station of the Shenzhen Hub, passes through the Shenzhen Airport to the west, passes through the Dongguan Airport, passes through the Pearl River Estuary under the tunnel in Humen Town, passes through Nansha District, Zhongshan City, Jiangmen City of Guangzhou City to Jiangmen Station of Shenmao Railway The main line is 116.1 kilometers long, with a total investment of about 51.3 billion yuan and a design speed of 250 kilometers per hour. (Finish)