Transportation on Nan'ao Island

One bridge connects the east and west, and the chasm becomes a thoroughfare! Nan'ao County's transportation infrastructure has added a new name in 2015 - Nan'ao Bridge. This is a bridge that carries the dream of Shantou people for generations. It is also the first real cross-sea bridge in Guangdong Province.

The Nan'ao Bridge has a total length of 11.08 kilometers and has been under construction since 2009. As the bridge is located at the bell mouth of Houjiangwan Strait, the hydrological, geological and meteorological environment are complex and changeable, and the construction progress of the bridge has been continuously extended. After 68 months of overcoming difficulties, this bridge that "connects Laiwu to Shanwei" will soon become the most convenient transportation method for citizens to enter and exit Nan'ao Island.

In the 68 months of overcoming difficulties, the most difficult and critical link of the Nan'ao Bridge was the underwater construction. With the successful completion of this link, the Nan'ao Bridge also set a new record for bridge construction in Guangdong Province - becoming the first bridge in the province to successfully use steel pipe piles as pile foundations.

It is understood that steel pipe piles are used as pile foundations in the 5.3-kilometer deep water area of ??the Nan'ao Bridge, and 593 steel pipe piles were laid across the entire line to form 120 offshore bridge pier caps. Due to the complex construction environment, strict technical requirements, and tight construction schedule, especially in the waters of South Australia with strong surges, frequent wind gusts, and heavy fog, pile sinking construction is often hindered. In the first eight months, the construction party only completed 56 steel pipe piles, and the progress of pile sinking was seriously affected. In addition, when steel pipe piles are driven into the same pier position, individual piles often fail to reach the design elevation, exceeding more than 20 meters at most. To this end, the construction unit carried out geological supplementary surveys and static and dynamic load tests in a timely manner, and comprehensively revised the pile length based on the relevant results, and implemented it after expert review and approval. After the correction, it only took 3 months to successfully complete all 537 piles, creating a miracle of sinking steel pipe piles for the bridge.

At that time, in order to successfully complete the piling, the construction team also mobilized the world's most advanced piling ship "Haili 801". This piling ship has a lifting capacity of 600 tons, and the piling length is 80 meters plus the water depth. The steel pipe pile can be completed from horizontal lifting to final vertical positioning at one time. It has assisted in the construction projects of Hangzhou Bay Bridge and Jingtang Bridge.

The "Celestial Eye" satellite positioning system closely measures and controls the error within 2 centimeters

The Nan'ao Bridge is 11.08 kilometers long. How to achieve accurate positioning on the vast sea is a big problem . During this process, the construction unit relied on advanced satellite positioning technology and strict measurement and monitoring to strictly control the bridge construction error within the standard range of 2 centimeters.

It is understood that most of the Nan'ao Bridge is on the sea. There are no controllable base points on the sea. The construction unit uses the GPS satellite positioning system to measure and control the entire bridge, and then lays 10 on the land on both sides. GPS control points serve as the reference for full-bridge measurement and control. In order to facilitate offshore construction, the construction unit also laid 7 GPS encryption control points on the offshore platform pier on this basis. Using these satellite positioning base points, the construction unit regularly uses measuring instruments to conduct tracking measurements. When errors are found, they are promptly adjusted and corrected. Each error must be strictly controlled within the standard range of 2 centimeters.

Considering the actual traffic volume, the two-way two-lane design

The Nan'ao Bridge is designed as a two-way two-lane. Many citizens have questions: Since it is such an important cross-sea bridge, why is it built like this? thin"? The reporter learned that this design was not only limited by cost, but also based on the actual traffic volume of Nan'ao Island.

The ring road in Nan'ao is the only access to and from the island. This road is designed with two lanes in both directions. If the corresponding Nan'ao Bridge has too much traffic and the road suddenly "shrinks" after entering the island, problems may occur. Big traffic hazard. In fact, if the traffic volume on the island increases in the future and the existing bridge cannot meet the demand for vehicles entering and leaving the island, then it is entirely possible to build an additional bridge. This is also something we can learn from in the history of domestic bridge construction. It is understood that the current initial maximum speed of the Nan'ao Bridge shall not exceed 60 kilometers per hour, and the load limit is 55 tons. Monitoring equipment will be installed every 500 meters on the bridge to monitor traffic conditions and vehicle driving behavior on the bridge in real time without blind spots.

Affected by factors such as weather and sea conditions, the construction cost of the extended project increased by nearly 500 million yuan

Affected by objective factors such as weather and sea conditions, the actual closing time of the bridge was shorter than originally designed The construction period was extended by more than 2 years and the cost increased by nearly 500 million yuan.

The original contract period of the Nan'ao Bridge project was three years, but after the start of construction, it was often affected by various objective factors. Taking the weather as an example, there are very few effective operating days in the bridge construction sea area with winds below level 7. The actual number of operating days per year is about 150, which is far lower than the 270 days in the bidding document. This also increases the cost of the project. For example, there is a mixing ship that supplies concrete. The monthly rent is as high as 700,000 yuan. Due to the problem of isolated rocks on the seabed, the construction period was delayed for a year and the ship was idle for a year. Similar cost increases are frustrating and distressing. “But in order to complete the project with high quality, these costs have to be borne.” A leader of China Communications Construction Company First Harbor Engineering Co., Ltd. told reporters.

It is understood that the total cost of the bridge has been adjusted from the original 1.101 billion yuan to 1.582 billion yuan. Despite this, CCCC First Harbor Engineering Co., Ltd. has ensured the progress of the project through various efforts such as bank factoring and corporate loans. .

, Nan'ao Bridge is the first real cross-sea bridge in Guangdong Province. It starts from Laiwuwei, Chenghai, our city, connects with Laimei Road of Provincial Highway S336, and ends at Kuluping, Changshanwei, Nan'ao, where it connects to the Ring Island Highway. The total length of the route is 11.08 kilometers, of which the total length of the bridge is about 9.3 kilometers

161 bus route

With the completion and opening of the Nan'ao Bridge to traffic, the history of Nan'ao citizens' transition to and from the island has ended. The reporter learned from the Shantou Municipal Transportation Bureau that Shantou City is about to open the No. 161 bus line (Qishan Passenger Station to Nan'ao County), and it will be put into trial operation simultaneously with the completion and opening of the Nan'ao Bridge, making Nan'ao citizens' travel more convenient and economical, and solving the problem of late night Problems such as being unable to travel to and from the city or Nan'ao after 6 o'clock will further promote the equalization of public transportation services in Shantou City.

It is understood that the No. 161 bus line is a bus express line, connecting Qishan Passenger Transport Station, Bus Terminal, Passenger Transport Central Station, Railway Station, Civil Aviation Terminal and other passenger transport hubs, covering the entire northern area of ??the central city , and also undertakes transfers on short- and medium-distance buses in the city and in Shantou-Chaojie; this line only stops at 11 stations in the urban area. During the trial operation, 12 Xiamen Jinlong LNG large buses were put into operation, and the vehicle capacity will be gradually increased according to the situation; The operation adopts a split mode, with the first flight from Shantou to Nan'ao at 6:30 and the last flight at 20:30, and the first flight from Nan'ao to Shantou at 7:00 and the last flight at 21:00.

In addition, during the trial operation, a temporary bus transfer station will be set up at the T-shaped intersection of Laimei Road of Nan'ao Bridge, which is the entrance to the west approach of Nan'ao Bridge, towards Laiwu, and will provide capacity to connect with buses No. 105 and 203. Transfer to Nan'ao County and provide more options for citizens to travel to Nan'ao. Among them, bus No. 105 starts from People’s Square, passes through Haibin Road, Zhongshan East Road (Times Square South Station), and Jinhong Highway, and ends at Laiwu Ferry. Citizens in the southern part of the central city can take this line, Chaoyang, Chaonan, Citizens in Haojiang District can also transfer to this line at People's Square; bus No. 203 departs from Chenghai Bus Terminal, passes through Guangyi Road and Laimei Road, and ends at Laiwu Bathing Beach. Citizens in Chenghai District can take this line.

Bus route No. 161, from Qishan Passenger Terminal to Nan'ao County, passes through Qishan Passenger Terminal - Chaoshan Road - Xinghua Road - Jinsha Road - Shanzhang Road - Jinhu Road - Changjiang Road - Songshan Road - Zhujiang Road - Taishan Road (Passenger Transport Center Station) - National Highway 324 - Laiwu Road - Nan'ao Bridge - Nan'ao County. Stops: Qishan Passenger Terminal, TV Tower, Bus Terminal, Jinsha Township West, Dongxia Middle School North Campus, Longhu Village North, Huaxin Garden, Zhujiang Road Middle, Passenger Transport Center Station, Shanfenfen Taishan Intersection, Waisha Town Government, Nan'ao Bridge West, Changshanwei, Dachuan'ao, Qian'ao Resort, Xiangyun Plaza, Visitor Center, Dayuan on the top of the mountain (county terminus).

With the approval of Shantou Municipal Price Bureau, the full fare of bus No. 161 from Qishan Passenger Terminal to Nan'ao County is 14 yuan/person. Shantou Shenzhen Exhibition Bus is initially scheduled to start on May 1 Implement new fares. At the same time, segmented fares will be implemented, with each section to the west of Nan'ao Bridge priced at 7 yuan.

According to reports, since the opening of the No. 161 bus line, which was put into trial operation simultaneously with the Nan'ao Bridge, it has become the most convenient, economical and environmentally friendly means of transportation for citizens to travel to Nan'ao Island and for Nan'ao citizens to travel. At present, bus No. 161 is divided into Line A and Line B. Line A takes Jinhong Highway and Line B takes National Highway 324. The original fare was 12 yuan/person and the adjusted fare is 14 yuan/person. At the same time, segmented tolls have been implemented. Currently, from Qishan Passenger Terminal to the west of Nan'ao Bridge and from the west of Nan'ao Bridge to Nan'ao County, the original 6 yuan/person is adjusted to 7 yuan/person.

According to Hu Peng, deputy general manager of Shantou Shenzhen Bus, the number of buses on Route 161 has increased from 12 in the initial stage to 20, and to 25 on holidays, further making it easier for citizens and tourists to take the bus* **Transportation to travel to the island. Laichang Ferry

The reporter learned from Laichang Ferry that due to passenger flow, season and other reasons, Laichang Ferry currently operates 4 flights a day, and the flights are not divided.

According to reports, since the Nan'ao Bridge was put into trial operation, except for large vehicles, almost all vehicles entering and leaving the island pass through the bridge. Most of the people who take the ferry are citizens driving motorcycles and bicycles, and these passengers Sources are extremely limited. Therefore, after the Spring Festival, there are only 4 sailings at Laichang Ferry every day, namely: a boat entering the island at 9 am and 3 pm, and a boat leaving the island at 10 am and 4 pm. The frequency will be adjusted appropriately during holidays. and departure times.

According to the person in charge of Laichang Ferry, the Nan'ao Bridge is still in the trial operation stage and vehicle tolls are exempted. After the bridge officially charges, the ferry will adjust the shipping frequency according to the passenger flow situation. Nan'ao Bridge Operation and Management Notice

According to the "Guangdong Provincial People's Government's Reply on Issues Related to Vehicle Tolls on Shantou Nan'ao Bridge" (Guangdong Government Letter [2015] No. 44), the Nan'ao Bridge is scheduled to open in April 2015 It will be officially operational from 0:00 a.m. on the 1st, and the relevant issues regarding operation and management are hereby announced as follows:

1. Vehicle access time: 24-hour access (except for special weather or traffic control).

2. The toll station is set up at the land connection point on the Nan'ao side, and a physical gate is set up at the bridge management office on the Laiwu side. Vehicles entering the island pay tolls and are released, vehicles on the bridge take cards and pass, and vehicles leaving the island are released with cards.

3. The vehicle toll charges are 48 yuan/trip for Class I vehicles, 72 Yuan/trip for Class II vehicles, 96 Yuan/trip for Class III vehicles, 144 Yuan/trip for Class IV vehicles, and 144 Yuan/trip for Category V vehicles. 168 yuan/train. Trucks are also charged based on weight. The charging model adopts a one-way two-way toll for vehicles entering the island.

4. Interval speed measurement and security checkpoints are set up on the bridge. Vehicles on the bridge must drive safely according to signs, markings and relevant warning information. The speed limit for vehicles on the bridge is 60 km/h.

5. The Nan'ao Bridge has a load limit of Grade I on the highway, and overloaded vehicles are strictly prohibited from entering the bridge. Overloaded vehicles that break into the bridge area should be evacuated from the bridge area in an orderly manner under the command and guidance of traffic and traffic police law enforcement personnel and Nan'ao Bridge management personnel and be punished in accordance with regulations.

6. In the event of special weather (such as typhoons, tropical storms, heavy fog, etc.), the bridge will implement traffic control or close the bridge according to the situation; buses (or vehicles of the same level) are prohibited from entering the bridge in level 9 windy weather; The bridge will be closed in windy weather with level 10 or above (including level 10).

7. Pedestrians and the following vehicles are prohibited from going on the bridge: non-motor vehicles, motorcycles, tractors, special vehicles for disabled people, crawler vehicles, wheeled special mechanical vehicles, articulated passenger cars, and full-trailer trailers.

8. When vehicles pass through the Nan'ao Bridge, the following behaviors are prohibited:

(1) Overtaking, reversing, going in the opposite direction, and making a U-turn;

(2) On the bridge deck Pick up and park passengers, get on and off passengers;

(3) Ride and drive along lane boundaries

(4) Use high beam lights at night.

(5) It is prohibited to stay, take photos or litter.

9. When a vehicle is difficult to move on the bridge due to an accident or malfunction, the hazard warning flasher should be turned on immediately and a warning sign should be set up behind the driving direction in accordance with regulations. Drivers and passengers should quickly move to the right emergency lane, call the police for help immediately, and turn on the profile lights and rear position lights.

10. Since the Nan'ao Bridge is a connecting line between the mainland and the island, it is a terminal traffic. Currently, the traffic volume that can be accommodated on the island is limited. Nan'ao County, Chenghai District Traffic Police Department and Nan'ao Bridge Management Unit will implement the traffic flow according to the traffic situation. Timely traffic control.

Notice hereby.

Shantou Municipal People's Government

March 27, 2015