Reporters are the first to experience the convenient traffic of Shantou Bay Tunnel

Entrance of the south bank of the Gulf Tunnel.

Editor's previous language: Shantou Bay Tunnel is the first large diameter shield tunnel in the 8 -degree earthquake intensity zone in China. It is also the first domestic in China to use a large diameter shield to cross complex strata and the largest large diameter shield method to the bottom of the sea floor. One of the tunnels is known as the "world -class super engineering". As the first cross -sea tunnel in Shantou, it not only skewed the centennial dreams of north and south sides of the north and south sides of the north and south sides of the north and south sides of the tide at home and abroad, but also carried the effort and expectations of countless experts and participants. New chapter of construction.

After more than seven years of construction, yesterday, the good news of heavy news from the Shantou Bay Tunnel Project -the on -site inspection and acceptance of the main line of Shantou Bay Tunnel has been completed, which also means The tunnel enters the countdown countdown. From today on today, this newspaper has launched a series of reports of "Exploring" Tunnel together "to take you to feel the convenience and fastness of traveling north and south sides. Looking back at this unprecedented "hard core crossing".

The reporter learned yesterday from Shantou's Suier Channel Construction Investment Development Co., Ltd. that on September 23, the on -site inspection and acceptance work of the main line of Shantou Bay Tunnel's main line had been completed, and the opening was as soon as possible! Today, this submarine dragon on the Bay of Susia has been fully presented in front of the citizens, and the north and south sides of the Taiwan Straits are completely connected! At the time of opening the countdown, the reporter "explored the camp" in advance under the leadership of the engineering staff and drove through, like driving the "Time Tunnel", and arrived at the north bank from the south bank in 5 minutes!

Two -way six -lane, creating marine characteristics

The Shantou Bay Tunnel with a total length of 6.66 kilometers is located in the inner bay between the Bay Bridge and the Shishi Bridge. It is composed of crossing the Susia Gulf Tunnel, the South Bank Road Connection, the Interchange of the Nanbin South Road, and the North Bank Road Foundation. The project starts at the intersection of Tianshan South Road and Jinsha East Road in Longhu District of the North Bank. Follow Tianshan South Road to the south. 200 meters on the west side of the diving hall went ashore, and finally the Hutou Mountain Tunnel Exit. Among them, the on -board section of the south and north bank is constructed. The section of the submarine tunnel is 3047 meters long, and two large diameter shield machines with a diameter of 15.01 meters and 15.03 meters are used.

The south bank of the Shantou Bay Tunnel passed the Nanbin South Road Interchange with Nanbin South Road Unicom, and connected with the Huntou Mountain Tunnel to directly connect with the main urban area of ​​the Qijiang. Yesterday, the reporter and his party passed the DRAT of the South Binnan Road, and soon came to the south bank of the tunnel to import. Looking up, the four red characters of the "Bay Tunnel" above the blue shading shed in the cave door were seen. Next to the entrance and exit of the south bank, a silver -gray building is the Shantou Bay Tunnel Management Center. In this building, you can grasp the traffic, fire, and ventilation in the tunnel in real time to escort the safe operations after the tunnel.

When you enter the tunnel, you can see the silver -gray decorative board installed on the side walls of the sides. The blue color belt is dotted in the middle, and the blue and white are used to create the characteristics of the ocean. Shi Weilong, chief engineer of the Shantou Bay Tunnel Engineering Project Department of the China Railway Tunnel Bureau Group Co., Ltd. The line is a blue decoration style, so that the tunnel forms a smooth and simple visual effect in terms of color and lines. The decorative board runs through the entire tunnel, and the color of the side wall decorative board is parallel along the road to the direction of the road to play a guiding role of the road, enhance the guidance and comfort of the tunnel, and ensure the safety of driving.

"The speed limit of the tunnel is 60 kilometers, and it is designed as a separate two -way six -lane, and three lanes of the east and west lines." Shiqu, the manager of the engineering management department of Shantou Susou Channel Construction Investment Development Co., Ltd. told reporters that the internal structure of the tunnel is divided into three floors, upper levels, and the upper levels It is a tobacco passage. The middle layer is a driving lane with a width of 10.5 meters.

Driving and walking, the reporter felt that there was sufficient driving space and a wide range of vision. The lighting on both sides of the cave is neatly arranged, and the entire tunnel is shining, and the smooth cave wall of the tunnel extends a beautiful light band to the bottom of the sea. It is understood that only the main tunnel driving lane layer, the lamps reached 3092 sets, and there was a set of 7 meters. At the same time, the main tunnel lighting distribution box was set up every 400 meters to power the lamps of the driving layer.

Driving is smooth and comfortable, as if walking through the "Time Tunnel"

As an underwater tunnel, the entire tunnel is arc. Although in the sea level below 10 to 16 meters, the reporter did not clearly feel downhill and uphill during driving experience. "The slope of the tunnel is 3%, and a small arc will be presented in the field of vision." Shi Qu introduced. Coupled with a unique air supply system, the air circulation is very good throughout the process, and it is cool and ventilated. It is understood that the key to the six groups of air circulation of the tunnel of the tunnel in each tunnel of the tunnel is called the "respiratory system" of the tunnel, which sends fresh air from the entrance of the tunnel to the tunnel, and the automotive exhaust gas in the tunnel is used Dowry the tunnel from the exit. Two wind towers on both sides of the north and north are important guarantee measures for the safety operation of the tunnel. When fire occurs, the tunnel needs to be used for emergency smoke.

Soon, the reporter and his party arrived at the open section of the North Bank exit. At first glance, the trip from the entrance of the south coast tunnel to the north bank was about 5 kilometers. It only took 5 minutes, as if walking through the "Time Tunnel". arrive. When I came to the open section of the North Bank Tunnel, my sight was suddenly open. The reporter noticed that there was a beam with a spacing of about 3 meters above the open section, and there was a column in the middle of the east -west line of the tunnel. According to Shi Qu, the open section of the North Shore is about 670 meters, and two sections of light and dark transition sections are set up and back to avoid poor inside and outer light and ensure driving safety. Then passed through Changping Road, and came to the main line of the main line of Tianshan South Road. Here, the vehicle out of the tunnel can quickly enter Tianshan South Road and Jinsha East Road.

The preliminary design budget of the Shantou Bay Tunnel is about 5.7 billion yuan. It is a major traffic infrastructure in our city. It has opened up a new passage across the sea from the north and south sides of Shantou. It will be opened for the citizens for free after opening. , Accelerate the formation of smooth, fast and efficient city skeleton network in the central urban area.

Xiao Guanping, the general manager of CITIC Shantou Binhai New City Investment Development Co., Ltd. and chairman of Shantou Susou Channel Construction Investment Development Co., Ltd., said that at present, Shantou has accelerated the construction of the city's urban development pattern. After the Shantou Bay Tunnel was opened to traffic, the inside coasts north -south and the north and south coasts achieved all -weather traffic. The time was shortened from the current 40 minutes to less than 10 minutes. By the wings, it has promoted the high -quality development of Shantou's economy and the development of the coastal economic belt.

(Source Shantou Daily)

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