Brief introduction of bridge
Construction background, site selection, investment and benefit of Xiangshan Port Bridge in Ningbo, Zhejiang Province. Xiangshan Port Highway Bridge and Wiring Project, this project starts from Yunlong Town, Yinzhou, where Ningbo Ring Expressway is located, crosses Xiangshan Port in the south and ends in Dai Gang. It is temporarily connected with Provincial Highway 38, and is connected with the planned coastal expressway Xiangshan-Taizhou section in the long term.
The total length of the project is about 47 kilometers, and the planned construction period is four years (2008+02.30 ~ 205438+02.5438+02.30). Among them, Xiangshan Port Bridge is about 6.7 kilometers long and 25.5 meters wide. It is a cable-stayed bridge with twin towers and double cable planes, with a main span of 688 meters, the highest in the province, and the designed basic wind speed of 46.5 meters per second, the highest in the country. The project is a two-way four-lane expressway with a subgrade width of 26 meters and a carriageway width of 15 meters. The design speed is100km, and the investment is estimated to be about 6.5 billion yuan.
geographical position
Xiangshan Port is located in the southeast of Ningbo, between Chuanshan Peninsula and Xiangshan Peninsula, with Damuyang in the east. It is a long and narrow semi-closed bay from northeast to southwest, and it is an ideal deep-water haven. The water depth of the whole territory is more than 60 kilometers, and the harbor is deep and clear, with a general water depth of 10 ~ 15 meters.
The coastline is tortuous, and there is a harbor in the harbor. The coastline of Xiangshan Port is 406 kilometers long, including 297 kilometers on the mainland. There are three sub-ports in the port, namely West Lake Port, Huangdun Port and Tiegang Port.
Xiangshan Port has a wide water area, with a total area of 563,3 square kilometers. The port area spans five counties, cities and districts of Xiangshan, Ninghai, Fenghua, Yinzhou and Beilun.
Xiangshan Port, which is well sheltered from the wind, is surrounded by mountains in the west, south and north, sheltered by Liu Heng and other islands, and the harbor is calm. The sea area is rich in aquatic resources. There are more than 320 kinds of domestic products in Xiangshan Port, which is the main aquaculture base in Zhejiang Province.
The port transportation industry has made new progress: there is a car ferry in Hengshan, Yinzhou, a Zhejiang shipyard in Hutoudu, Fenghua, and a 2.4 million kilowatt thermal power plant in Haiqiang Ningjiao.
The significance of bridge construction
After the completion of Xiangshan Port Bridge, together with Sanmenwan Bridge, Zhoushan Port, Ningbo Port, Beilun Port, Xiangshan Port, Shipu Port and Jiaojiang Port to be built in central Zhejiang, Damaiyu Port and even Wenzhou will be "connected into a line", laying the foundation for building a coastal corridor parallel to the third line, starting from Zhoushan in the north and reaching Wenzhou in the south, integrating sightseeing and transportation, thus greatly improving the traffic environment of central and southern Zhejiang entering the Yangtze River Delta.
After the completion of Xiangshan Port Bridge, it will also be of great benefit to Xiangshan Port itself. The 12th National People's Congress of Ningbo has decided to start the Xiangshan Port Bridge project as soon as possible. By then, a bridge will fly north and south, and the seaport will become a thoroughfare. The future of Xiangshan Port will be even better.
In September 2009, 1, the first pier of the main bridge was successfully poured.
The first pier of the main bridge is now poured with concrete. The first pier is located on the north bank of Xiangshan Port Bridge, with a height of 9.77 meters. It is a transition pier, which is similar to a vase. According to the construction progress, the second pier will also complete the secondary formwork support and concrete pouring in the near future. Since the offshore project of Xiangshan Port Bridge started in June this year, the safety and quality have been well controlled, and the qualified rate of sub-projects has reached 100%. In the first seven months of this year, the investment was 973 million yuan, accounting for 74.8% of the annual investment plan.
On June 8, 2009, the steel pipe pile project of the main bridge was successful.
On February 8th, the last steel pipe pile of pier No.75 of 65438+ Xiangshan Port Bridge was successfully inserted into the elevation, which indicated that the insertion process of steel liners and steel pipe piles of piers 7 1, 72, 75 and 76# was safe, high-quality and efficient, and the phased objectives and tasks assigned by the municipal headquarters were completed ahead of schedule. This laid a solid foundation for the overall construction of the four pier drilling platforms of the bridge. At present, the construction of the main bridge is in full swing and progressing in an orderly manner. By February 8th, 65438, 32 cast-in-place piles had been completed in the North-South Main Tower, and the construction of the drilling platform for Pier No.75 was in full swing. The processing of reinforcing cages and the storage of materials were carried out smoothly according to the established objectives.
March construction progress 20 10
Bored pile on land (m/root): 1409/72
Offshore bored pile (m/ root): 15 139/23
The main bridge of Xiangshan Port Bridge is designed as a steel box girder cable-stayed bridge with twin towers and double cable planes. The south and north main towers are rhombic towers with a height of 225.5 meters and a main span of 688 meters. The total pouring height of the north and south main towers of the bridge reaches 193.5 meters, and the tower height and span are the first in our province. At present, more than 100 construction workers are working in shifts at the high tower in the sea, and strive to achieve the capping of the main tower before the end of this year.
Memorabilia of Xiangshan Port Bridge
1994 12 16, the county government according to the overall planning of Ningbo highway network and Xiangshan port
Group and Shoreline Layout Planning ",put forward and entrusted the Highway Planning and Design Institute of the Ministry of Communications to undertake the preparation of the pre-feasibility study report of Xiangshan Dancheng-Ningbo Highway and Xiangshan Bay Bridge. 1995 10, the institute submitted the pre-feasibility study report on the design of Xiangshan dancheng-Ningbo highway and Xiangshan bay bridge. The total length of the bridge and its wiring is 58.8 kilometers, and the total investment is estimated to be about 4.66 billion.
At the beginning of 2003, the county party committee and government proposed to build Xiangshan Port Bridge and its wiring project. On June 16 of the same year, the office meeting of the secretary of the county party committee studied the "Highway Alignment Plan of Yongtai-Wenzhou Double Track Section of Tongsanguo Road Main Line".
On July 8, 2003, China Communications Highway Planning and Design Institute was entrusted to compile the pre-feasibility study report of Xiangshan Port Bridge in Ningbo. From the first ten days of July to 1 1, the site selection, engineering geology, engineering physics, engineering design scheme, investment estimation, traffic economy, traffic volume forecast and economic evaluation of the bridge were studied in detail, and a number of intermediate achievements were completed.
In June 2003 +2003 10, a leading group for the preparation of Xiangshan Port Bridge headed by the main leaders of the county party committee was established, and specialized personnel were deployed to form the headquarters for the preparation of Xiangshan Port Bridge. 165438+1From October 25th to 26th, a report meeting on intermediate results of pre-feasibility study report of bridge engineering was held.
In April 2004, Ningbo set up a leading group for the construction of Xiangshan Port Bridge and its wiring project led by the municipal government, and dispatched specialized personnel to form an office to co-locate with the preparatory headquarters of Xiangshan Port Bridge to carry out the preliminary work of the project.
From May 27th to 28th, 2004, the expert consultation and evaluation meeting on the pre-feasibility report of the bridge project was held in Ningbo.
On July 4th, 2004, the leading group for the construction of Xiangshan Port Bridge and its wiring project held its first meeting, and studied and determined the project scheme, the overall work of the project, the implementation of the project owner and funds, and the examination and approval of the project construction document.
In August, 2004, Xiangshan Port Bridge and Connection Project Leading Group Office entrusted China Communications Highway Planning and Design Institute to compile the feasibility study report of the bridge project, and implemented special research units such as underwater topographic survey, hydrological analysis and calculation, and industrial layout research along the line.
At the end of September 2004, the project proposal was submitted to the National Development and Reform Commission by Ningbo Development Planning Commission.
In June, 2004, 10, the project investor was established, and the investor was composed of Ningbo Communications Investment and Development Company and Xiangshan Oriental Investment Co., Ltd. in a ratio of 9: 1.
At the end of 2004, the field investigation, investigation and drilling of engineering feasibility study and related special research were completed.
From February 28th to March 3rd, 2005, entrusted by the National Development and Reform Commission, China International Engineering Consulting Co., Ltd. hosted the on-site consultation and evaluation meeting of bridge project proposal in Ningbo.
From June 8 to June 1 1, 2005, the Ministry of Communications hosted an industry review meeting on the pre-feasibility study report of the bridge project in Ningbo.
On June 24, 2005, the county people's government and Ningbo Communications Investment and Development Company held an investment signing ceremony for Xiangshan Port Bridge and wiring project at Xiangshan International Hotel.
On June 25th, 2005, 165438+ the municipal government held the second meeting of the leading group for the construction of Xiangshan Port Bridge and its connecting lines, and put forward principled opinions on the project progress, management system, project construction objectives, policy treatment and fund balance.
On February 20, 2006, the National Development and Reform Commission issued a document (Development and Reform Price [2006] No.292), agreeing to build Ningbo Xiangshan Port Bridge and its wiring project.
On June 8, 2009, the first steel pipe pile was laid on Xiangshan Port Bridge.
On March 20th, 20 10, the first pier of the first contract section of Xiangshan Port Bridge and its wiring project was successfully poured. This pier is 2 1# pier of G ramp of Yunlong Interchange, and it is also the first pier of Xiangshan Port Bridge wiring project. This service marks the official start of the implementation stage of the land structure of the first contract and the overall wiring project of Xiangshan Port Bridge.
July 12, 20 1 1 day, after more than 1000 days and nights of fighting, Xiangshan Port Bridge will fill the last gap tonight and achieve closure.
201212 In the early morning of February 29th, Xiangshan Port Bridge was opened to traffic.
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