The world's longest high -speed rail crossing the sea, will it appear here?

Zhejiang News Client reporter Huang Hong

The longest high -speed railway cross -sea bridge in the world is coming?

According to news from CCTV, the feasibility study report from Nantong to Ningbo High -speed Railway has been approved by the National Development and Reform Commission. Prior to this, the official release platforms to be passed by the railway along the railway along the "Nantong Release", "Suzhou Release", and "Ningbo Release" have also released the same news.

During the release of various places, this railway is called "Tongsujiayan Railway". After being informed of the relevant news, the "Ningbo Publishing" said that the approval of the Tongsujiayan Railway means that the Tongsujiayi Railway has started one step closer to the entire line.

This railway is very important.

According to the relevant news currently announced: Nantong to Ningbo high -speed railway line, located in Jiangsu and Zhejiang Province, is a north -south railway, Nantong West Station in Nantong City in the north, after passing Suzhou and Jiaxing City, crossing Hangzhou Bay into Ningbo City Essence

This high -speed railway is about 310 kilometers in length, including 300 kilometers of new lines, 350 kilometers per hour for design speed, and an estimated investment of 108.09 billion yuan on the entire line.

There are 10 stations including Nantong West, Zhangjiagang, Changshu West, Suzhou North, Suzhou South, Jiashan North, Jiaxing South, Haiyan, Cixi, and Zhuangqiao, and 5 in Zhejiang and Jiangsu. Among them, Nantong West, Zhangjiagang, Suzhou North, Jiaxing South, and Zhuangqiao are existing stations.

Tongsujiayan Railway (Source: WeChat public account "China Railway")

If you look at the map carefully, you will find that this high -speed rail has a characteristic: because it is north -south, it will cross the Yangtze River and Hangzhou Bay.

So how will it cross?

According to "Suzhou Release", this high -speed rail will use the four -line bridge of the Shanghai -Soviet Tong Yangtze River Public Railway during the Yangtze River.

But when crossing Hangzhou Bay, the situation is different.

We know that the Hangzhou Bay cross -sea bridge is a two -way six -lane highway with a design speed of 100 km/h. This is a highway bridge, which cannot pass the railway.

For this high -speed rail crossing Hangzhou Bay, a double -line railway bridge will be built. According to relevant information, the bridge is designed with a length of 29.2 kilometers and a design speed of 350 kilometers per hour. After completion, it will become the world's longest high -speed railway cross -sea bridge.

How to build this bridge has made detailed disclosure before Ningbo.

In March last year, "Ningbo Release" said that the newly -built Tongsu -Kajia Railway Hangzhou Bay Bridge (cross -sea part) engineering geological survey officially entered the beach coating area construction. The initial design and construction have laid a solid foundation. "

The same article also introduces some details of the new Hangzhou Bay Cross -sea Railway Bridge: Located on the upper reaches of the Hangzhou Bay Highway Bridge, the total length of the sea section is about 29.2 kilometers. After the completion of the bridge, it is not only the longest in the world, but also the highest -crossing high -speed railway bridge in the world.

This article also mentioned that the natural environment of the bridge is harsh, the wind speed can reach 39 meters/s, the wave height can reach 6.87 meters, the maximum tide is nearly 9 meters, the maximum flow rate is 4.72 meters/s, and the sea bed is muddy in the sea bed. The thickness of the layer is 20 meters to 40 meters, and there is still shallow gas effects, and it is difficult to build a bridge.

Building this "difficulty" cross -sea bridge, naturally "conspirators".

It is one of the most developed regions in China, and three of the 4 cities pass. In 2021, GDP was more than trillion yuan: Suzhou last year's GDP was 2.27 trillion yuan, ranking 6th in cities in the country; 1.1 trillion yuan, ranked 22nd in the country; Ningbo last year's GDP was 1.46 trillion yuan, ranking 12th in the country.

Although it is still struggling to climb to the "trillions of cities", Jiaxing City also performed well: GDP in 2021 was 635.5 billion yuan, ranking 41st in the country.

The sum of the GDP of these four cities accounts for nearly one -fifth of the total number of three provinces and one city in the three triangles.

According to relevant reports: After the opening of this railway, there will be a direct high -speed rail between Suzhou and Nantong; because there is no need to bypass Hangzhou and Shanghai, the road to Jiaxing to Suzhou will be shortened to half an hour. ; 4 cities will form a "1 hour traffic circle".

Related news states that after the completion of the railway, it will fill the shortcomings of the regional road network, accelerate the formation of the national coastal railway passenger channel, and optimize the layout of the high -speed railway network area in the Yangtze River Delta region. Promote the development of high -quality integration in the Yangtze River Delta region, enhance the innovation and competitiveness of the Yangtze River Delta region, and improve economic agglomeration and regional connection.

Because of this, people attach great importance to this railway: In this year's Zhejiang Provincial Government's work report, the railway was mentioned in the project to promote construction.

In the work report of the Ningbo Municipal Government this year, it is said that "the construction of Ningbo West Hub, Tongsujiayi Railway, and Yongzhou Railway Construction" should be said.

Let us look forward to another "the world's most" and land in Zhejiang!

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