The Shantou Bay Tunnel project is progressing smoothly. As of 18:00 on May 12, the shield machine on the east line has drilled 1,374 meters and completed 45% of the tunnel design. It has also drilled 330 meters on the west line and completed 7.6% of the tunnel design.
  
The Shantou Bay Tunnel has a total length of 6.68 kilometers and among which 3,047.5 meters of tunnel pass through Su'ai Bay section. It is divided into two lines for east and west and two tunnels, and the shield method is adopted for its construction. The east line of the tunnel adopts the German Herrick 15.01-meter large-diameter shield for driving, while the west line adopts the 15.03-meter large diameter shield independently manufactured by our country for driving in the same direction as the east line. Such a large diameter and long distance practice of passing through the bay is the first of its kind in the country. After the tunnel is completed, it is a two-way six-lane way, and the driving speed of the main line is designed to be 60 km/h. The interior space will be divided into three layers, among which, the top is the smoke discharge passage, the middle is the three-lane traffic layer, and the bottom is the rescue passage and pipe gallery.

Source:Shantou Daily, May 14, 2019

汕头海湾隧道东线完成近半

汕头海湾隧道项目进展顺利，截至5月12日18点，东线盾构机已掘进1374米，完成隧道设计的45%；西线掘进330米，完成隧道设计的7.6%。

汕头海湾隧道全长6.68公里，其中穿越苏埃海湾段3047.5米，分为东西两条线路、两座隧道，采用盾构法施工。东线采用德国海瑞克15.01米大直径盾构掘进，西线采用我国自主生产的15.03米大直径盾构同向掘进，如此大直径、长距离穿越海湾在国内还属首次。隧道建成后为双向六车道，主线设计行车速度60千米/时，内部空间分为三层，顶部为排烟通道，中部为三车道行车层，底部为救援通道及管廊。

来源：汕头日报2019-5-14