Yueqing Bay Bridge and its connection project are an important part of the main skeleton of the "two vertical, two horizontal, eighteen links, three windings and three channels" expressway in Zhejiang Province, and are also the auxiliary lines of the Zhejiang section of Shenhai National Expressway (Yongtaiwen Expressway).
After the completion of the project, it will form a new coastal expressway in Zhejiang Province with the proposed Sanmenwan Bridge, Taizhou Bay Bridge and wiring project, which will play an important role in improving the regional expressway network, improving the port's collection and distribution capacity, strengthening the traffic links between the Yangtze River Delta, Zhejiang coastal and Fujian Strait West Economic Zone, and promoting economic and social development along the route.
Start construction
201112 Yinggong Island, the dam of Xuanmen Phase II in Yuhuan Economic Development Zone, was jubilant, and the construction of Yueqing Bay Bridge on the double track of Yongtaiwen Expressway officially started, which marked the start of the construction of Taizhou section of the double track project of Yongtaiwen Expressway with the longest construction mileage and the largest investment in Taizhou during the Twelfth Five-Year Plan period.
The double-track construction of Ningbo-Taizhou-Wenzhou Expressway is not only beneficial to relieve the traffic pressure of Ningbo-Taizhou-Wenzhou Expressway, but also to realize the seamless connection between Ningbo-Zhoushan Port, Taizhou Port and Wenzhou Port and the national expressway network, and further build China's coastal expressway. The construction of Yueqing Bay Cross-sea Bridge will also make Yuhuan bid farewell to the history of impassable roads, fundamentally solve the traffic bottleneck constraints of Yuhuan, and realize the dream of Yuhuan people for a cross-sea bridge.
On September 26th, 20 14, the first pile of the main bridge of Yueqing Bay Bridge was laid.
The deep and wide Yueqing Bay is welcoming the most important activity of mankind for thousands of years. In its deep sea and deep soil, 538 offshore cement piles will support the 1 bridge, which is named as Yueqing Bay and takes a century-long plan as its mission. As a result, the eastern coastal corridor, which several generations have dreamed of, has opened up the second vein of Ren Du and entered the fast lane of galloping north and south and connecting horizontal lines.
Yesterday, the first main bridge of Yueqing Bay Cross-sea Bridge 1 Bridge trestle in Fenshui Village, Yuhuan County was started with the order of the construction unit China Communications Construction Group First Highway Engineering Bureau Co., Ltd. (hereinafter referred to as "China Communications First Public Bureau"). The drill bit fell into the sea water at a depth of 17 meters, kissed the ensuing sea mud, and spun smoothly into the deep sea with the splashed mud. Soon, the head pile of a main pier with a length of112m will stand in the sea water, which means that this sea-crossing bridge has entered the substantive construction stage of the main project.
As an important part of the Yueqing Bay Bridge and its wiring project, the Yueqing Bay 1 bridge project is a pioneering work of the Yueqing Bay cross-sea bridge, starting from Fenshuishan Wharf in Lupu Town and ending at Mao Yan Island in Haishan Township. It is 4.3 kilometers long and 33 meters wide. According to the standard of two-way six-lane expressway, the design speed is 100 km, with a total investment of 65438 km.
The future of the bridge: "traffic flow, economic flow and thought flow" are smooth.
Since the reform and opening up, Yuhuan's economy and society have developed rapidly, and its comprehensive strength ranks among the top 100 small and medium-sized cities in China. But in sharp contrast, Yuhuan, as an island county, still belongs to the end of land transportation. Up to now, there are no national highways, high-speed highways and railways, and access is maintained only by the 76 provincial highway and its double-track and the Yueqing Bay Ro-Ro Ferry.
"Yuhuan's external traffic is seriously lagging behind economic and social development, and the double-track project of Yongtaiwen Expressway is a breakthrough to fundamentally solve the traffic bottleneck in Yuhuan." Zhang Jiabo, secretary of Yuhuan County Party Committee, talked about the key significance of Yueqing Bay Bridge and Expressway to Yuhuan.
Dong Guibo, vice mayor of Taizhou, has a deeper understanding, evaluation and expectation of the construction of Yueqing Bay cross-sea bridge: "The whole Taizhou coastal expressway was planned 10, and it has been in operation for 8 years. Now 65,438+00 years of hard work has turned into excitement and happiness. Yueqing Bay Bridge is the No.1 project in Taizhou and a masterpiece in Taizhou's traffic history. I hope to build a star bridge, a first-class project, a strong soldier and a model, and take this project as an opportunity to drive and lead the development of other transportation projects in Taizhou. "
Behind the eager eyes of Taizhou people is a compilation of various special reports accumulated by Yuhuan County Coastal Expressway Construction Command. "Hard work in the early days. In order to build this cross-sea bridge, the engineering feasibility study reports of 27 topics from geology, hydrology, climate, maritime affairs to water conservancy and flood control were piled up by several people. "
In fact, the rapid development and change of society is far faster than the prediction result of applying a formula. Ruan Yong gave the reporter an example: "1998, Ro-Ro Ferry Co., Ltd. invested in two ships, carrying more than 400 vehicles every day. However, with the increasing traffic volume, as of August this year, the number of ferries has increased to five, carrying more than 2,000 vehicles every day, and congestion and queuing often occur. "
Economic development, especially the development of e-commerce in recent years, has driven logistics to become increasingly active, and the increase in vehicle ownership and the sharp increase in traffic volume are unprecedented.
On June 20 1 1, as a provincial key project, Yuhuan Chenyu Tunnel and its wiring project were officially completed and opened to traffic. The completion and opening of the tunnel aims at alleviating the bottleneck problem of increasing local vehicles in Yuhuan, and plays a key role in the development of Damaiyu Port, a national first-class port, and direct flights to Taiwan. "At first, according to the on-site statistics and formulas of technicians, only a few hundred cars came and went a day, but at present, the actual traffic flow of Chenyu Tunnel has reached 50,000 vehicles a day."
"If you want to be rich, build roads first. This old saying is still an irrefutable and tried-and-true truth in the economic development of Yuhuan. " Ruan Yong said that if the Yueqing Bay Bridge can be completed as soon as possible, Yuhuan will be more deeply integrated into the Yangtze River Delta economic circle and will also benefit from the economic integration and common development of Wenzhou and Taiwan. It also urges Damaiyu Port to expand its business scope, expand its economic hinterland and bring objective port economic benefits.
The builder's promise: to build a specimen-style modern bridge that stands for a hundred years.
Xiang Li is the deputy chief engineer of Yueqing Bay 1 Bridge of CCCC No.1 Public Bureau. "Two years ago, the construction of the trestle of the 1 bridge offshore construction platform began, and now it has all been completed. The main bridge project officially started today. "
Ye Nan, commander-in-chief of the construction headquarters of Yueqing Bay Bridge and Wiring Project, member of the Standing Committee of Yuhuan County Committee and deputy head of the county, said that the construction team of No.1 Public Security Bureau 1 Bridge is a first-class team in China, and the continuous rigid frame and segmental prefabrication technology adopted is also the most advanced technology in China. The goal of this project is to create "excellent departments"
The symphony of the bridge, which belongs to Li Xiang and his colleagues in the next three years, began with the loud noise when the first pile hit the rock.
"Because of the different positions of the approach bridge and the main bridge pile foundation, the pile foundation is divided into onshore piles and underwater piles. The 1 bridge has 64 piers, and each pier is supported by at least 8 piles and at most 18 piles. " Li wants to say.
The sea water on both sides of the main channel is the deepest and the pile foundation is the longest, reaching 106 meters, which is equivalent to the height of 35 floors. "The process of driving the pile foundation into the deep sea is the most worrying. In addition to on-site workers, all managers and engineering commanders must be on duty 24 hours. Once the working efficiency of the drill bit is abnormal, it means that the operation in the sea encounters obstacles and must be vigilant and handled at any time. "
Yueqing Bay 1 Bridge is a super-long project, with large quantities and high engineering difficulty. Especially after the "segmental prefabrication" technology is adopted, the engineering difficulty increases. But the advantages of this technology are also very obvious, which is different from the traditional "cast-in-place bridge" technology. Prefabrication of segmental beam is to divide the whole beam into different segments, prefabricate them in the beam factory, and then hang them on the bridge for splicing. This not only reduces environmental pollution, but also ensures that the impact of the construction process on navigation is minimized.
"But this is also the difficulty of construction. In field splicing, light, temperature and wind are all factors that affect the splicing accuracy. In order to ensure the accuracy of on-site construction, we specially cooperated with universities and conducted a simulation experiment of 1 to 10 in the laboratory. " Li wants to tell reporters.
"All the technical and management requirements of the cross-sea bridge are directed at the standards of the century-old project. It will record the century-long development and personnel changes of the coastal economy, and it will also record the tenacity and pursuit of our builders. " Yueqing Bay 1 Bridge Project Manager Department of China Communications No.1 Public Bureau nonsense.
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