Guangdong Shantou Bay Tunnel is officially opened to traffic

Our newspaper Shantou, September 28 (Reporter Wu Chunyan and Wang Zhongyao) On September 28, at the management and control center of the Shantou Bay Tunnel, Guangdong, with the successful completion of the lever ceremony, the Shantou Bay Tunnel that lasted for 7 years was officially opened to traffic. This is another cross -sea passage that has been opened to traffic after the Sanshi Bridge and the Bay Bridge two cross -sea bridge.

It is understood that the Shantou Gulf Tunnel with a total length of 6.68 kilometers has two -way six -lane lane and a design speed of 60 kilometers per hour. It is the world's first submarine tunnel to the 8 -degree earthquake intensity area. It is also the first domestic use of large diameter shields through complex strata and comprehensive difficulty. The largest large diameter shield method.

Yang Jie, deputy chief engineer of the South Bank Institute of Sino -Railway Tunnel Bureau, introduced that the Shantou Bay Tunnel is the first largest in China to cross the sea tunnel with the largest diameter mud and water shield. Relying on technological innovation and management innovation, the tunnel builders have successively overcome the excavation of solitary stone group strata, high -viscosity soft land excavation, long -distance shallow overflowing high water pressure excavation, high -intensity base rock bumps in the sea The world -class construction problem finally completed the "world -class challenge project" in the eyes of many experts. The successful implementation of the Shantou Bay Tunnel Project has enhanced my country's oversized diameter shield equipment design and application capabilities under extreme operating conditions, enhanced the performance and market competitiveness of domestic oversized diameter shield equipment, and led to the development of shield equipment research and development , Sustainable development of design, manufacturing, application and other links.

In terms of guaranteeing the long -term safety of tunnels, according to Yang Ling, director of the operation and management department of Wuhan Yangtze River Tunnel Construction Co., Ltd., which provides operation and maintenance services during the trial operation of the tunnel, introduced, the comprehensive monitoring platform of the Shantou Bay Tunnel Management Center has video surveillance, transportation testing, environmental inspection, environmental inspection , Information release, fire alarm, tunnel ventilation, tunnel lighting, tunnel pumps, emergency telephones and broadcast 9 subsystems, a total of 132 TV surveillance cameras are set up to monitor the operating conditions, communication conditions, and environmental conditions of the tunnel.

The opening of the Gulf Tunnel not only solves the problem of cross -sea traffic in Shantou citizens in severe weather, but also greatly shortens the passage of the north and south sides of Shantou Bay from 40 minutes to 10 minutes.

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