The super project of embroidering the needle in the wind has sparked heated discussions, what is the

It is known as the "super project of threading needles in the wind and embroidering on the seabed", which refers to the immersed tunnel of the Shenzhong Channel.

The deep-medium trough immersed tunnel is about 5 kilometers long, and consists of 32 immersed pipes buried in a foundation groove more than 40 meters deep on the seabed of Lingdingyang. The foundation groove of the E1 immersed tunnel is nearly 124 meters long. As the foundation groove of the first immersed tunnel of the key line on the water, its excavation progress and quality will directly affect the subsequent processes of foundation tank rock filling, gravel leveling and immersed tube floating installation.

So, what's the point of the project?

One: It shows China's high-precision construction technologyAs we all know, the foundation groove of the E1 immersed tunnel is close to the west artificial island, the construction surface is narrow, the cross construction is frequent, and the construction interference is large. Moreover, the foundation groove of the E1 immersed tunnel is basically perpendicular to the water flow, and the water flow is turbulent, which is easy to cause inaccurate positioning and depth deviation due to the anchor of the ocean current.

In addition, the precision excavation height error of the foundation groove of the E1 immersed tunnel should be strictly controlled, which has far exceeded the current norms and standards in the field of dredging engineering technology.

Second: the side reflects China's "craftsman spirit".The word "fine" is the key to this structure. In the vast Lingding Ocean, to control the height error within meters, to dig out the pile head of the deep concrete mixing pile (referred to as DCM) and mix it with the rock layer at the bottom of the trough, it is tantamount to threading a needle in the wind and embroidering on the seabed.

According to the requirements of foundation trench excavation accuracy, the project invested in the first self-developed grab dredger "Jinxiong", which is responsible for the fine excavation of the island tunnel project of the Hong Kong-Zhuhai-Macao Bridge, and is responsible for the fine excavation operation. In the excavation process, the project technicians and the backbone personnel of the "Jinxiong" wheel adopt the "segmented, layered, strip" excavation technology, and the dredger directly controls the fine excavation control system of the "Jinxiong" wheel, and inputs the excavation depth data into the operation panel, accurately grasps the excavation process, detects the real-time data of the grab, and effectively avoids over-excavation and missing excavation.

This project is currently the country's focus on the construction of the Shenzhong Passage project, which is also the world's largest cross-border intrasea suspension bridge, and it has the world's highest in-sea bridge. And for such a world-class project, it is also very important for the improvement of the entire transportation system and the corresponding maritime linkage, and more importantly, it can greatly shorten the passage time after the completion of Zhongshan and Shenzhen, from the previous need to take a few hours to now only need 20 minutes to complete.

On the one hand, this project is to show the level of construction of our country, and on the other hand, it is convenient for residents to use, and secondly, it reflects the development of our country, and I think this project is still very meaningful.

I don't think this project makes any sense, it's a boring practice for our lives, and it doesn't prove that this project is advanced.

With the progress of science and technology and the development of society, the people's demand for satisfying modern life is constantly increasing, which also urges scientific and technological workers to constantly break through technology, create one great and majestic project after another, and improve the country's status in the world. For example, China's subway facilitates people's daily life; For example, China's high-speed rail has reduced the time for people to travel long distances; For example, China's sea-crossing bridge not only looks majestic, but also more convenient and fast. At present, China is building a deep-middle project called threading needles in the style and embroidering on the seabed, which shortens the driving time from Shenzhen to Zhongshan to 20 minutes, which can be called a great feat.

First, magnificent growth

The Shenzhong project is a project under construction in China, from Shenzhen to Zhongshan, from the previous few hours to the overdue 20 minutes, it is a lot more convenient to think about it. This submarine project has been relatively mature, much more advanced than other countries, the technology is precise, and the requirements are high, so it is a very grand project, and a lot of manpower and material resources have been invested, just to facilitate the people's travel. Because people's happiness is the driving force for the country's continuous growth, China come on.

Second, the technology is relatively mature

At present, China has completed a lot of similar engineering projects, such as cross-sea bridges, which are very mature in terms of technical experience, and can perfectly solve various incurable diseases according to different regional forms. <>

3. Accumulate rich experience

The society is progressing, and our country is constantly making progress in all aspects, constantly creating miracles in technology, and accumulating experience, drawing inferences from one another, and applying technology to other engineering projects. During the construction of the Shenzhen-Zhongshan project, China already has experience in the construction of cross-sea bridges and undersea tunnels, so in this project, China's technical experts are imperative. Despite this, the scale of the project is very large, and the technicians do not slack off and risk 100% of their energy to work.

The Shenzhong project, the deep-sea embroidery project, shortens the driving time from Shenzhen to Zhongshan to 20 minutes.

This mega-project is what our country is building right now. Shenzhong Corridor Project. It is the largest suspension bridge in the world across the sea. It is also the highest bridge in the sea. This project is carried out in the sea, so it is called submarine embroidery by netizens.

After the completion of the Shenzhen-Zhongshan Corridor project, the drive from Shenzhen to Zhongshan will be shortened to 20 minutes. The project is vividly called "threading needles in the wind, embroidering on the seabed", and has the world's largest span underwater suspension bridge, the world's highest underwater bridge, and the world's first highway underwater interchange.

The Shenzhen-Zhongshan Passage has the world's largest span mid-sea suspension bridge, the world's tallest mid-sea bridge, and the world's first super project of highway underwater interchange, which only takes 20 minutes from Shenzhen to Zhongshan after completion.

It is the Hong Kong-Zhuhai-Macao Bridge, you must know that this bridge is erected on the sea, and for our country this is the world's first independent bridge, new materials, different buildings.

Because they had a lot of work to do, and they had to design something unexpected in a particularly difficult environment.

Because these super projects have very high technical requirements, which is not a level that ordinary people can achieve, he needs to have exquisite technology, patience and perseverance.

Known as the "super project of threading needles in the wind and embroidering on the seabed", it refers to the deep and medium channel immersed tunnel The deep and medium groove immersed tunnel is about a kilometer long, of which the immersed section.

Because this project seems to require very meticulous skills to be able to do, it requires great care and patience. It is not something that ordinary people can complete, so this project is called threading needles in the wind and embroidering on the bottom of the sea.

After the completion of the Shenzhen-Zhongshan Corridor project, the drive from Shenzhen to Zhongshan will be shortened to 20 minutes. The project is vividly called "threading needles in the wind, embroidering on the seabed", and has the world's largest span underwater suspension bridge, the world's highest underwater bridge, and the world's first highway underwater interchange. for "super engineering".

That is the Hong Kong-Zhuhai-Macao Bridge that shocked both home and abroad, the bridge was built for 8 years, and finally succeeded, and has now been officially opened and delivered.

It is a deep channel, which can be seen to be very culturally valuable, and it takes a long time to build, which is the crystallization of our human wisdom.

Known as the "super project", the core control project of the Zhuhai connection line of the Hong Kong-Zhuhai-Macao Bridge was completed on the last layer of the Gongbei Tunnel, marking the sprint stage of the Zhuhai connection line of the Hong Kong-Zhuhai-Macao Bridge.

This project is the Shenzhong Passage, and this project is so great that it cannot do without the hard work and unparalleled wisdom of our country's construction workers.