Jingzhou Yangtze River Bridge

Jingzhou Yangtze River Bridge

Jingzhou Yangtse River Bridge is a river crossing channel connecting Shashi District and Gongan County in Jingzhou City, Hubei Province, China. It is located on the Yangtze River waterway. It is a key traffic construction project in Hubei Province during the Ninth Five Year Plan period, and also a throat project connecting 207 National Highway to cross the Yangtze river.

The construction of Jingzhou Yangtze River Bridge started on March 28, 1998;

The main girder closure project was completed on November 26, 2001, and the whole bridge was connected;

It was opened to traffic on October 1, 2002, and the opening ceremony was held.

Jingzhou Yangtze River Bridge starts from Jingzhou interchange in the north, crosses the Yangtze River waterway and ends at Jingzhou North interchange in the South; the total length of the line is 8.860 km, and the total length of the main bridge is 4.178 km; the bridge deck is a two-way four lane first-class highway with a design speed of 100 km / h; the total project cost is 1.373 billion yuan.

Construction process

On March 28, 1998, the construction of Jingzhou Yangtze River Bridge was started and the commencement ceremony was held.

On November 26, 2001, the main girder closure project of Jingzhou Yangtze River Bridge was completed.

On October 1, 2002, the Jingzhou Yangtze River Bridge was opened to traffic, and the opening ceremony was held.

On December 28, 2007, Jingzhou Yangtze River Bridge completed the installation of bridge and culvert signs, bridge column lights and other safety protection facilities.

On February 2, 2009, Jingzhou Yangtze River Bridge passed the completion acceptance of anti-collision facilities (Civil Engineering).

On May 15, 2016, Jingzhou Yangtze River Bridge completed the project of "rear type" to "front type" of etc Lane in Qiaobei toll station.

On December 7, 2019, Jingzhou Yangtze River Bridge passed the completion acceptance of stay cable maintenance project.

Bridge location

Jingzhou Yangtze River Bridge is located in the south of Jingzhou City, Hubei Province, China, connecting Shashi District and Gongan County. It is about 92KM away from the upstream Zhicheng Yangtze River Bridge in the West and 472km away from the downstream Wuhan Yangtze River Bridge in the East. The line of the bridge starts from Jingzhou interchange in the north, crosses the Yangtze River Waterway in the north and connects Jingzhou North in the south. The line passes through the Qiaonan service area, and is Erlianhot Guangzhou Expressway (National Expressway G55) < / I component.

Architectural design

building structure

Overall layout

Jingzhou Yangtze River Bridge is composed of north bank approach bridge, Jingzhou Dadi bridge, north bank beach bridge, North Branch navigable hole bridge, sanbazhou bridge, South Branch navigable hole bridge, south bank beach bridge, Jingnan main dike bridge and south bank approach bridge; the river crossing bridge is composed of northeast to southwest.

 

Design features

Design parameters

Jingzhou Yangtze River Bridge has a total length of 8.860 km, a main bridge length of 4.178 km, and a straight-line section of 3794.537 M. among them, the North Branch Navigable Bridge is 900 m long, the South Branch Navigable Bridge is 557 m long, the north bank beach bridge is 150 m long, the south bank Beach bridge is 240 m long, the Jingjiang dike bridge is 236 m long, the Jingnan main dike is 180 m long, the north bank approach bridge is 440 m long, the south bank approach bridge is 270 m long, and the total width of the bridge deck is 24.5 M The clear width of the road is 21.5m, and the width of the cable-stayed bridge section is 27.0m. No. 31 tower is 139.15 meters high, with a base of 6 meters high, with a spacing of 29.30 meters between upper and middle towers of 35.80 meters; No. 32 tower is 150.25 meters high, with a spacing of 29.30 meters between upper and middle towers of 35.80 meters; No. 42 tower is 119.90 meters high, with a base of 6 meters high, with a spacing of 29.30 meters between upper and middle towers of 35.60 meters; No. 43 tower is 89.20 meters high, with a base of 6 meters high, with a spacing of 29.30 meters wide between upper and middle towers of 35.60 meters The maximum distance between tower columns is 35.60m.

 

Operation

Fare system

As of February 2020, the charging standards of Jingzhou Yangtze River Bridge are as follows:

Vehicle specifications

Weight of cargo

Traffic matters

From January 1, 2013, motorcycles (including three wheeled motorcycles) are prohibited to pass Jingzhou Yangtze River Bridge.

 

Construction achievements

Technical problems

Construction problems

The main problems encountered in the construction of Jingzhou Yangtze River Bridge are as follows:

1. Pile foundation construction——

① The engineering geological conditions are poor. The sandy soil layer of 20 to 30 meters on the surface has great scour depth and great liquefaction risk. In the middle, there are nearly 100 meters of gravel, cobble and breccia soil layers, so it is very difficult to drill.

2. Pile cap construction——

① The construction scheme of double wall steel cofferdam is adopted in the construction of bearing platform, and the bottom sealing of 33m large diameter double wall steel cofferdam is one of the difficulties in the construction of bearing platform.

② The temperature stress control of mass bearing platform concrete construction is the second difficulty.

3. Cable tower construction——

① The main difficulties of high tower construction are the construction of upper and lower beams and the construction of high tower columns

4. Construction of main girder and stay cable——

① It mainly focuses on hanging basket casting, system transformation, side and mid span interference, cable installation and adjustment.

5. Bridge deck construction——

① CF40 steel fiber reinforced concrete is used in bridge deck construction. Mixing and vibrating technology is the main difficulty.

 

construction technique

The main construction technologies of Jingzhou Yangtze River Bridge are as follows:

1. Construction technology of long span PC cable stayed bridge;

2. Design, manufacture and installation technology of large tonnage long stay cable, vibration reduction technology of stay cable;

3. Grey prediction control system theory, construction process control technology of long span cable-stayed bridge;

4. Design and construction control technology of long span PC cable stayed bridge with high and low (sister) towers;

5. Using the front fulcrum of stay cable construction, large tonnage construction hanging basket and construction technology;

6. The main girder of plate section cable-stayed bridge is convenient for construction;

7. Deep water foundation of large diameter and super long bored pile under complex geological conditions;

8. Large span continuous beam bridge with continuous length up to 1100m;

9. Computer simulation technology of bridge structure;

10. The application of CPS satellite positioning technology in engineering survey and control of Yangtze River Super Large Bridge.

 

Scientific research achievements

Honorary recognition

Cultural characteristics

Bridge name

On October 1, 2002, Jingzhou Yangtze River Bridge was opened to traffic. Six characters of "Jingzhou Yangtze River Bridge" inscribed by Jiang Zemin were set on the beam of the bridge tower.

 

Folders

In order to commemorate the opening of the Jingzhou Yangtze River Bridge, the bridge issued the "Jingzhou Yangtze River bridge opening commemorative postmark".

Value significance

The completion of Jingzhou Yangtze River Bridge will link up national highway 207 and improve the main skeleton network of trunk highways in China. It will play a positive role in promoting the development of Yangtze River economic belt, Jianghan Plain and Dongting Lake Plain, and providing safe passage for people in Jingjiang Flood Diversion Area. < I (highway review) < / I

 

Address: Jingjiang section of the middle reaches of the Yangtze River in Hubei Province

Longitude: 112.222977

Latitude: 30.315171