[State-owned enterprises on the new journey] Within 3mm of error, the construction of the main stadium of the World Cup demonstrates China's precision

　　Chinanews.com, November 29th,

　　China New Finance and Economics Song Yusheng Wu Jiaju Cheng Chunyu

　　At 6:00 pm on November 22, Beijing time, the Lusail Stadium, the main venue of the World Cup in Qatar, ushered in its World Cup debut.

　　This bowl-shaped building rising from the desert has now become a new landmark beside the Persian Gulf, and it has also driven the rise of Lusail New Town.

At the same time, this is also the first time that a Chinese company has undertaken the construction of the main World Cup stadium as the main contractor.

　　How was this top professional football stadium built?

Which "black technology" is applied?

from a desert

　　"I watched this magnificent 'Golden Bowl' built from a desert and two blueprints. Many points in the middle were made by my own hard work. It feels like raising a girl. Then the World Cup was held and I married her off. There was both a sense of accomplishment and an old father’s reluctance.”

　　Six years later, in the face of reporters' inquiries, Huang Taorui, the deputy manager of China Railway Construction's Lusail Stadium project, can always recall the scene when the Lusail Stadium was just started in 2016.

"A desert, two blueprints" is a true portrayal of the place at that time.

　　In fact, more than one builder involved in the venue described similar scenarios.

Someone recalled that Lussel "didn't even have a decent road" at that time, driving from the camp to the site, he would get lost in the desert if he didn't pay attention.

　　As the deputy manager of China Railway Construction's Lusail Stadium project, Huang Taorui's deepest impression on Qatar is "hot".

This has also become one of the many difficulties in the construction since then.

　　Qatar is located on the Qatar Peninsula on the southwest coast of the Persian Gulf, with a tropical desert climate.

But at the same time, the geographical location surrounded by the sea on three sides has created a hot and humid climate here.

　　A construction worker said frankly, "Standing on the floor, you can't feel a breath of wind. The air is filled with the salty smell of sea water. The whole person is like swimming in the air. Even if you stand still, your clothes will wear off within 5 minutes. Drenched in sweat."

The construction site of the concrete structure of the Lusail Stadium.

Photo provided by the interviewee

How to "Complete the Path"

　　It was in such an environment that at the end of 2016, the on-site construction of the Lusail Stadium officially started.

　　In Huang Taorui's view, the entire construction process is like "completing the learning path".

The first step on this road is to deal with Qatar's hot and humid climate.

　　Considering the health of construction workers, the project party strictly controlled the open-air working environment.

Li Chongyang, general manager of China Railway Construction International Group, said, "In the hottest summer, workers have to take shifts to rest when they work for 2 hours at a time."

　　Huang Torui told reporters that in addition to adjusting working hours, the construction site also provides workers with ice water and glucose water; each room where workers live is also equipped with air conditioners and shower rooms.

　　The Lussel Stadium project built by the workers has reached the highest level of similar projects at home and abroad in terms of project scale, total investment, implementation difficulty, professional complexity, technological advancement, and construction precision control requirements.

　　The amount of steel used for the main steel structure of the venue alone is

, and its 274-meter-span fish-belly cable net is the world's largest-span roof cable net structure.

In addition, the transportation and hoisting of a single 450-ton super-large steel structure is extremely difficult, and it is necessary to strictly follow the world's highest level of construction precision control standards, and

.

　　According to Li Wende, engineer of the Lusail project, for this reason, during the construction process, the construction party carried out a number of innovative applications of high-precision 3D laser scanning technology, and achieved a series of scientific research and innovation achievements.

　　In addition, Ma Gaofeng, the construction manager of the Lusail Stadium project in Qatar, said that the project has also established the world's most complex super-large stadium project coordinate system for measurement and control, which has realized the precise positioning of the super-large-span cable net structure. , invented the

.

Lusail Stadium under construction.

Photo provided by the interviewee

"Global Synergy"

　　It is worth mentioning that the Lusail Stadium was not independently completed by a certain company or a certain country.

Its construction process brought together the joint efforts of many parties, and it is also the result of the collaboration of the global industrial chain and supply chain.

　　Wang Wenzhong, member of the Standing Committee of the Party Committee and Vice President of China Railway Construction, said, "We have gathered high-quality resources at home and abroad,

, and more than 7,000 builders in such a World Cup in the construction industry. accomplished such a feat together.”

　　In order to meet the requirements of multiple parties, the Lussel Stadium

, and realized multi-disciplinary simulation analysis and collision inspection through a variety of software platforms, maximizing the

.

Video: [Qatar World Cup] World Cup main stadium construction time-lapse full record

　　During the peak period of the Lusail Stadium project, the number of workers was close to 5,000. The workers came from 18 countries around the world, and most of them were foreign employees from India, Pakistan, Bangladesh, the Philippines, Nigeria, Sri Lanka and other countries.

　　In April 2020, when the new crown epidemic began to hit Qatar, which has a permanent population of less than 3 million, the project construction also encountered new challenges.

For this reason, when Qatar's epidemic prevention materials were in short supply, CRCC urgently airlifted 400,000 disposable masks, 10,000 KN95 masks, and 2,000 protective suits from the country, and they arrived at the site in five batches, ensuring effective on-site work. sequence advances.

Inside the Lusail Stadium.

Image source: Visual China

　　Today, this stadium with a total construction area of ​​190,000 square meters is currently the professional football stadium that can accommodate the second largest number of spectators in the world, and it is also the largest and most complex cable-membrane structure system building of its kind in the world.

　　In December 2020, the National Central Bank of Qatar issued the fifth edition of banknotes, and the 10-riyal denomination banknote was placed on the Lusail Stadium, becoming the first overseas project undertaken by a Chinese company to be listed on the national currency.

(Finish)

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