Ice and Snow Covenant丨 Ice and Snow Witness

The opening of the Beijing 2022 Winter Olympics is imminent. This is a major landmark event held by China at the historical intersection of the "two hundred years" goal. Reflecting the leapfrog development of ice and snow sports in the new era, the three-episode political feature film "The Covenant of Ice and Snow" was broadcast on the news channel at 8 p.m. from February 1. The program shows the great importance attached by the Party Central Committee with Comrade Xi Jinping as the core to the preparation for the Winter Olympic Games, the keen attention to promoting more than 300 million people to participate in ice and snow sports, the touching story of generations of ice and snow people fighting hard for the glory of the country, and the efforts of the Chinese people to dedicate a wonderful, extraordinary and outstanding Winter Olympic Games.

On New Year's Eve, Chinese President Xi Jinping's New Year message is a New Year's greeting sent by China's supreme leader to the people of the whole country and a window for the world to observe China.

This year's New Year's message, because of the arrival of the Winter Olympics, added a different meaning.

Running well the Beijing Winter Olympic and Paralympic Winter Games is China's solemn commitment to the Olympic Movement. In 5 years, nearly 2,000 days and nights, in Beijing, in Zhangjiakou, on the map of China, this promise is loud and clear.

Against the backdrop of global sporting events being hit hard by the pandemic, China's commitment to commitment has brought a strong and stable impetus to the Olympic Movement, which is in the midst of uncertainty.

14 years after the Beijing Olympics, when China and the Olympics meet again, Chinese will present a unique, wonderful and unique ice and snow event for the world!

Green, low carbon, science and technology

After 5 years of preparation, the prelude to the 2022 Beijing Winter Olympics is about to begin.

From bidding to preparation, looking back at every step taken by the Beijing Winter Olympics, the concept of green, shared, open and clean Olympic Games runs through. From the construction and upgrading of venues to the improvement of supporting facilities, we have always adhered to the principles of green, low-carbon and sustainable.

China announced that the Beijing Winter Olympics and Paralympic Winter Games will neutralize all carbon emissions. This demonstrates China's confidence and determination to achieve carbon peaking by 2030 and carbon neutrality by 2060.

As the event approaches, this "green, low-carbon" Winter Olympic picture is also slowly unfolding.

The National Speed Skating Hall, a landmark building in the main beijing area of the 2022 Winter Olympics, is also the only newly built ice competition venue.

It can be said to be one of the most "green" buildings of this Winter Olympic Games.

The cable mesh steel structure of the roof alone is already a fairly environmentally friendly and economical technical choice.

Li Jiulin, deputy general manager and chief engineer of the National Speed Skating Hall Company: By stretching this rope, just like making a tennis racket, only a few hundred tons of steel wire can be used to achieve the roof of a large stadium, which is a quarter of the steel used in traditional building structures.

Bigger highlights are inside. During the Winter Olympics, the speed skating competition will be held here and will produce 14 gold medals.

Speed skating, also known as "avenue speed skating". The top speed of athletes in the race can exceed 60 kilometers per hour. During the race, this piece of ice in the speed skating hall will perfectly present the fastest speed that humans can achieve on the plane without the help of external forces.

From the beginning of construction to the official competition, this large ice surface of nearly 12,000 square meters has always been the focus of attention from the outside world.

Because in the history of the centennial Winter Olympics, it has for the first time realized the use of carbon dioxide instead of the traditional Freon as a refrigerant.

This choice makes the largest artificial ice surface in Asia almost zero carbon emissions during the production process.

The technology to use carbon dioxide as a refrigerant originated in Northern Europe, but was also limited to making a standard ice surface of no more than 1800 square meters locally.

Applying it to such a large area of ice surface making and bringing it to the Winter Olympics is a first in China.

Beneath this layer of ice, less than 3 centimeters, is the base concrete floor, and further down, is a densely coiled metal hollow ice tube. Carbon dioxide refrigerant flows through the ice tube, carrying away the surface temperature and achieving rapid and stable cooling.

Here, engineers also rely on technical means to successfully recycle the heat taken away by the rapid cooling of the ground, and the problems of heating and hot water use outside the competition area by athletes are perfectly solved.

Ma Jin, head of the ice making system of the National Speed Skating Hall: In the case of this 12,000 square meters (ice surface) fully open, the annual electricity saving is 2 million degrees.

This low-carbon, energy-saving ice-making technology has also been applied in other venues of the Beijing Winter Olympics. Wukesong Sports Center and Capital Gymnasium will all present the same green and energy-saving ice surface.

Ma Jin, head of the ice system of the National Speed Skating Hall: The Winter Olympics is not just a sports event, it is a landmark event of green, efficient and sustainable development.

Before the opening of the Winter Olympics, in the most recent inspection of General Secretary Xi Jinping, the "Ice Ribbon" of the National Speed Skating Hall was the first stop. Here, the general secretary has a real impression of the "green Olympic Games" and looks forward to the smooth operation of the venues during the competition.

"Green" comes from technology. In 2019, when the general secretary inspected the preparations for the Beijing Winter Olympics for the third time, he particularly emphasized that the construction of venues should highlight the four characteristics of "science and technology, wisdom, green and thrift". In the first place, it is technology.

In the national curling hall "Ice Cube", the detachable steel frame and concrete prefabricated panels form a support system, and the flatness and installation accuracy are scanned and tracked by scientific and technological means, and then the ice-making work is completed.

The transformation from "Water Cube" to "Ice Cube" can be completed in 10 days.

In the Wukesong Sports Center, various links such as epidemic prevention and control and sports display also reflect the charm of science and technology everywhere.

In the athletes' preparation training, AI non-interference three-dimensional motion capture, ultra-broadband precision positioning speed measurement, high-speed motion automatic follow-up robot, as well as wind tunnel laboratory, six degrees of freedom laboratory, etc., all represent the cutting-edge scientific and technological forces that help the development of Ice and Snow Sports in China.

The holding of the Beijing Winter Olympics is a stage for the display of scientific and technological progress achievements, and the construction of venues, the preparation of events, and the preparation and training of athletes have the strong support of scientific and technological forces.

The preparations for the Winter Olympics involve more than 200 new technologies, as many as 70 applications, covering 5G and new energy, information engineering and software engineering, high-definition video, public safety and other aspects, with as many as 60 application scenarios.

With the help of science and technology, the Beijing Winter Olympics, the avenue is simple, simple but not simple.

The National Bobsleigh Center is like a dragon hovering on the small Haituo Mountain in Yanqing, and the track design is unique in the world.

President of the International Bobsleigh Federation: I think this venue is the best gift for this Winter Olympics.

This is the first ski jumping venue in mainland China to meet international standards, and its design is inspired by the traditional Chinese Ruyi shape.

Zhang Li, chief planner of zhangjiakou competition area of beijing winter olympics and chief designer of Xue ruyi of the National Ski Jumping Center: We have a lot of Chinese elements in this venue, and there is cultural self-confidence in it.

Shougang Ski Jump, designed inspired by the flying shape in the Dunhuang murals. It is also the first competition venue in the history of the Winter Olympics to be combined with industrial heritage.

IOC President Bach: This is a particularly great idea, old factories and old industrial parks, which can also be preserved as museums. At the same time, it can also make people recall the history of the past.

Like the Shougang Big Jump, the Winter Olympic venues that perfectly integrate the new and the old also include the Capital Gymnasium.

At the 2008 Beijing Olympic Games, it was the first stadium of volleyball stadiums, and today, it is the venue for figure skating and short track speed skating at the Winter Olympics.

Born in 1968, the first indoor ice rink in China, the first indoor ice rink has witnessed the development of new Chinese sports and the collective memory of Chinese era.

It is the ice skating holy land in people's hearts, and it is quietly waiting for the arrival of the Winter Olympics.

From February 4 to February 20, the Capital Stadium figure skating and short track speed skating competitions will produce 14 gold medals, and gold medals are born almost every day.

In the Winter Olympic Games, figure skating and short track speed skating are played on the same area of ice, and the two competitions are arranged in the same venue, which is the practice of the Winter Olympics.

Difficulty, the transformation on the ice surface.

Figure skating, such a take-off and landing, to be stable, the ice surface hardness requirements are slightly softer, and the temperature is controlled at minus 3 to minus 5 degrees Celsius.

Short-track speed skating, high-speed starting, high-speed sliding, the ice surface requirements are slightly harder, the temperature is controlled at minus 7 to minus 9 degrees Celsius.

This requires the venue operation team and the ice team to quickly and accurately adjust the ice status and temperature in the middle of the two competitions.

In the past Winter Olympics, this has been no small challenge. But in the transformed Capital Gymnasium, this piece of ice is not only energy-saving and environmentally friendly, but also achieves intelligent temperature control. Adjusting the ice temperature can be done on a mobile phone, and the conversion process takes no more than two hours.

In a series of test activities of "Meet in Beijing", it has already been tested many times.

Today's head doesn't look much different from 54 years ago. But inadvertently, it has quietly completed a gorgeous turnaround, upgraded to a "double Olympic venue", ready to meet the glory of the sports dream in the new era.

This is an answer sheet for the "simple Olympic Games", and it also reflects the great wisdom in the new development pattern.

In the five years since the Winter Olympics were prepared, General Secretary Xi Jinping has visited the Genting Ski Resort, Wukesong Sports Center, Capital Gymnasium, National Alpine SkiIng Center and other competition venues. He stressed on many occasions that it is necessary to pay attention to the use of advanced scientific and technological means, pay attention to practicality, protect the ecology, adhere to the principle of economy, and refrain from extravagance and extravagance and duplication of construction.

At the beginning of 2021, when General Secretary Xi Jinping came to the Capital Gymnasium to inspect, the upgrading and transformation had been completed here. New professional lighting system; green, advanced, environmentally friendly technical support; the new debut of the Capital Stadium, simple but absolutely wonderful.

Fourteen years ago, at the Beijing Olympic Games, the names "Bird's Nest", "Water Cube", "Shou body", Wukesong, and National Gymnasium wrote a unique memory. Today, the four competition venues have been perfectly upgraded to "double Olympic venues", and the "Bird's Nest" of the National Stadium will once again present the opening and closing ceremonies of the Beijing Winter Olympic Games.

Cross-country ski team

At the National Snow Sports Training Base on Chengde Dam, a fierce battle of the International Snow Federation cross-country skiing points race is in full swing. Competing with 48 members of the national team, there are also 8 outstanding athletes from Russia's top ten in the world ranking. This is the first time in the nearly two years since the epidemic spread that the team members have the opportunity to compete with outstanding foreign players. In the upcoming Beijing Winter Olympics, cross-country skiing will determine 12 gold medals.

Zhang Bei, leader of the national cross-country skiing team: Our team is a group of warriors, a group of warriors. We have to do what others don't want to do that we can't do. Participating in the Olympic Games and standing on the podium has been our only goal in recent years.

At the moment of successful Olympic bid, China's ice and snow ushered in a new development opportunity.

In the field of the 2022 Beijing Winter Olympics, China will achieve all 7 major events, 15 sub-events and 109 minor events. This has never been achieved since 1980 at the 11th Winter Olympics in China. As the host, this full-event participation is a breakthrough in the history of China's Winter Olympics.

The national cross-country ski team also has its own goals, they have to qualify for the full event, achieve a leap in performance, and even stand on the podium.

Li Yongming, scientific research director of the national cross-country skiing team: What has happened in recent years has actually broken our existing preparation methods, our support strength, and the degree of our scientific and technological assistance should be something that has never been done in previous Olympic Games.

Jiang Shiping, team manager of the cross-country skiing team: With the motherland as our strong backing, I don't think there is anything to be afraid of, and it is the end of the fight.

Chi Chunxue, a member of the cross-country skiing national team: I am really tired, of course, I want to not only stand on this stage, of course, to shine, the most dazzling light, to become the one that everyone is watching.

Cross-country skiing team team manager Shayla: They are warriors, we often say, suppose we send these children to the battlefield, we want them to come back alive, then what do we do, then make them infinitely powerful.

In 2019, the third year of preparation for the Beijing Winter Olympics. On the eve of the Spring Festival, General Secretary Xi Jinping cordially visited the athletes preparing for the Winter Olympics at the National Winter Sports Training Center.

As snow sports athletes try to prepare for the Winter Olympics, ice athletes are also doing their best.

The figure skating national team confirmed that the champion groups Sui Wenjing and Han Cong, Peng Cheng, Jin Yang and ice dance duo Wang Shiyue and Liu Xinyu will stand on the field of the Beijing Winter Olympics.

The ace team of Chinese short track speed skating won a full quota of 5 men and 5 women, and Wu Dajing and Ren Ziwei will shine at the Beijing Winter Olympics.

"Run a winter Olympic event well, run a special, wonderful, unique", for such a promise, not only the athletes on the field, outside the arena, responsible for the event protection and safety care, they are also making the final sprint for this Winter Olympic event.

Weather + Rescue

On November 7, 2021, In the winter of Li, Beijing and Zhangjiakou successively ushered in the first snowfall in the winter of 2021. At the weather station next to the cross-country skiing track in Zhangjiakou, there was a problem with the data receiving module, and the signal reception was intermittent. The meteorological service team of the division rushed to repair it.

Most of the snow sports at the Winter Olympics are held in mountainous areas with complex terrain. The snow sports are thrilling, and these brave races require a high degree of accuracy in weather forecasts for the region and the venue.

For ski jumping, the wind speed should not be greater than 4 m/s; for alpine skiing, the wind speed must be stable and maintained below 18 m/s. Once exceeded, there will be a danger to life.

During the Winter Olympics in Pyeongchang, South Korea, 17 events were adjusted due to weather reasons and 1 event was cancelled.

Dong Quan, chief forecaster of the meteorological service team in Zhangjiakou Division: Meteorology is particularly important for the Winter Olympics, compared with the Summer Olympics, it is too important, like aerial skills, jumping up and taking off several meters and falling, if the wind blows, people's lives are at stake, it is so important.

The Beijing Winter Olympics is the first time that the Winter Olympics will be held in a continental monsoon climate zone, which means that the technical experience and program of meteorological support for previous Winter Olympic Games cannot be copied at all. This group of weathermen in this arena needs to start from scratch completely.

In five years, Zhangjiakou Has built a comprehensive observation network for snow projects with the largest site density and the highest observation accuracy in the history of the Winter Olympic Games. The fineness of the forecast reaches the top "100 meters" and "minute level".

This 36-person team of meteorological forecasters from all over the country became the first professional meteorological service team in China with experience in local microclimate forecasting.

At the Winter Olympics, they will work with the Meteorological Service Team of Yanqing To escort the snow sports athletes in the competition.

Taking advantage of the snowfall, the helicopter and ambulance rescue team of yanqing alpine ski center also conducted a real combat training.

On November 7, 2021, He Jia, chief physician of the Department of Thoracic Surgery of Union Hospital, was on a visit.

Just a few days before the snowfall, he was trained in rope rescue at the Yanqing Alpine Ski Center.

He Jia, chief physician of the Department of Thoracic Surgery at Peking Union Medical College Hospital and track rescue doctor at the National Alpine Ski Center: Perhaps for an injured person, 10 seconds means the relationship between life and death.

He Jia was trained by more than 30 chief physicians from beijing's top three hospitals. In the past few years of preparing for the Winter Olympics, they have one more identity, the National Alpine Ski Center Track Rescue Doctor.

In the past five years, China's ice and snow have witnessed many firsts in the field of rescue. Alpine rescue, ropeway rescue, ski doctor, the alpine ski rescue system formed in Yanqing Is also the first time in China.

Simple, safe and wonderful, this is the requirement of the Beijing Winter Olympic Games.

In the past five years since the preparations, "safety" has been a concern repeatedly mentioned by General Secretary Xi Jinping in many field visits, which is the bottom line that must be adhered to in major sports events.

After the 2008 Beijing Olympics, this is the second time that China has hosted the Olympic Games.

In accordance with the internationally accepted rules of competition, competition and guarantee, the preparation and operation of the Winter Olympic Games need to build a professional event support team.

Snowmaking

On November 15, 2021, more than 150 snow machines at the Yanqing Alpine Ski Center were launched at the same time, and the snowmaking work officially began.

National Alpine Ski Center, Xiaohaituo Mountain in Yanqing, Beijing. The track that stretches along the ridge resembles the wings of a swallow, and the alpine ski center is named "Snow Flying Swallow".

The total length of the 7 tracks here is more than 9 kilometers, and the maximum vertical drop is close to 900 meters.

High drops, long slopes and a variety of curves formed by natural terrain make this one of the most difficult alpine skiing tracks in the world.

Lv Hongyou, head of the operation team of the National Alpine Ski Center: Why is this project not a world record in the world, because every mountain is different, every track is different, so it only has the best results of a certain track.

At the Beijing Winter Olympics, 11 gold medals will be produced here, including ski downhill, super big slalom, big slalom, slalom and other 11 small events.

Alpine skiers from all over the world will experience the speed and excitement unique to Little Haituo Mountain.

The 16 square kilometers of the venue area, the snowmaking area is about 800,000 square meters, equivalent to the area of 10 water cubes. With such a large amount of snowmaking, the snowmaking team at the Alpine Ski Center needed to complete it all within two months.

The snow from the snow machine hit the team members and quickly froze, and the whole person seemed to be covered under a shell of ice.

They are China's first alpine skiing support team, and this is the first time they have built an alpine skiing track for the Winter Olympics.

Whether it is snow or ice making, China's local professional talent team is also growing, including Liu Boqiang, who has grown from a rolling steel worker to an ice maker on a curling track.

Liu Boqiang + curling

At 7 a.m., ice work began at the Curling Hall of the National Winter Sports Training Center. These days, the national curling training team is holding Olympic trials here.

Liu Boqiang: The curling track requires the thickness of the ice surface to be about 3 centimeters, and its requirements for the flatness of the ice rink are not the highest, only higher.

Ice making on the curling field requires the creation of ice points. This tiny layer of ice particles allows athletes to change the friction of the track by brushing the ice.

A standard curling track, 45.72 meters long and 4.72 meters wide, takes 45 seconds to play through the point from start to finish.

The size, thickness, density, and temperature of the points all have an impact on the game.

Liu Boqiang: At present, there are no more than 20 top ice makers in the world (curling track), there is no Chinese here, my dream is to show the style of Chinese craftsmen in the Beijing Winter Olympic Games through my own efforts.

Although still waiting for the opportunity to secure the Winter Olympic Field, Liu Boqiang is already a professional ice maker in the curling hall of the National Winter Sports Training Center. On the ice he made, a fierce curling competition was underway, and the 60-game match between the Black Jersey National Curling Challenge team and the national curling training team entered the final sprint stage.

Liu Sijia, coach of the National Curling Challenge Team, led 11 outstanding curling players selected from the country against the National Curling Training Team.

National Curling Challenge Coach Liu Sijia: If we can seize this opportunity, we have a chance to complete our Olympic dream.

Han Yu, captain of the women's team of the national curling training team: Everyone is working hard to play upwards, take out their best state, and compete for the opportunity to participate in the Winter Olympics.

Curling is one of the seven major events of the Winter Olympics. Chinese curlers had highlights in the history of the Winter Olympics, in Vancouver in 2010 and in Sochi in 2014, and their performances are memorable.

As the previous generation of curlers left the field, the sport briefly hit a low ebb in China. After the successful Olympic bid, the curling talent reserve gradually increased. Chinese curling awaits a moment of bottoming out.

Starting in November 2021, a six-week nearly 100-week confrontation between the curling national training team and the challenge team will finally select 12 players representing China's strongest curling lineup for the Beijing Winter Olympics.

Snow pressure

At the end of November 2021, the maximum outdoor temperature in Yanqing has dropped to minus zero. Snow press work began on the National Alpine Ski Center circuit.

Snowmobile driver Wang Zhixin is in his third snow season at the National Alpine Ski Center. On the alpine skiing track of the Winter Olympics, even a veteran driver like him who has worked in civilian ski resorts for 20 years has no experience to talk about, and everything needs to start from scratch.

Hans is Wang Zhixin's teacher, who is from Sweden. He has served three Winter Olympic Games in Vancouver, Sochi and Pyeongchang, and has rich experience in the World Cup and World Championships. He is a technical expert recommended by the International Snow Federation.

Snow grooming vehicles, weighing more than a dozen tons, huge winchs and cables are pulling, completing snow press work on slopes with an incline of nearly 30 degrees. There are also frequent sharp turns at a nearly 45-degree angle on the track.

The slope is too large, and the human body will tilt downward uncontrollably, but the hands and feet cannot be loosened, because the cliff is next to it.

Hans: Don't try to fight the gravity of nature, don't try to fight the natural environment.

After three years with Hans, Wang Zhixin is already a snow groomer on China's first alpine ski track

For the "open" Beijing Winter Olympics, China has invited ice and snow sports technology experts from 18 countries around the world. The design of venues and tracks, the organization and planning of competitions, and the cultivation of talents all have their joint help.

Nikola Barack Lincoln, Distinguished Expert of Alpine Skiing, Sports Department of the Beijing Winter Olympics Organizing Committee: The Olympics, this is a sports event in the world, our team comes from 16 countries, including China, Russia, Sweden, the United States, New Zealand and so on. The Olympics are like that, we're like building a Babylonian Tower together.

China welcomes its friends from all over the world with open arms. This openness and enthusiasm is a joyful event for the Olympics, but also for the passion of burning ice and snow sports.

From the full completion of the competition venue to the launch of the torch "Flying"; from the release of the medal "One Heart" to the successful holding of the "Meet in Beijing" series of test activities, the notebook of the 2022 Winter Olympics has witnessed the outstanding results of the preparations for the Beijing Winter Olympics.

The curtain is about to be lifted, and the preparation and support of events in some special fields have also completed the final finishing work in accordance with the highest international standards.

Full of the belief of "mission on the shoulders, struggle with me", Chinese ice and snow athletes are racing against the clock, tenacious struggle, and sprinting for dreams and honors!

Paralympic national alpine skiing team

Paralympic National Alpine Ski Team Standing Group. As the race time approaches, the details of the starting point are crucial. The moment the arena starts, it is often the moment that determines the outcome of the game.

Sun Hongsheng, a skier without arms. Seeded player in the Beijing Winter Paralympic Alpine Skiing Super Giant Slalom event.

After six years of skiing, he and his teammates are looking forward to the upcoming Winter Olympics in Beijing.

In the 26-man team, Liu Sitong, Zhang Wenjing, Zhang Mengqiu, Sun Hongsheng and Chen Liang are all Chinese names who have appeared on the medal table of the Paralympic European Championships, World Cups, World Championships and Winter Paralympic Games.

At the 2022 Beijing Winter Paralympic Games, they will be strong contenders for medals.

Chen Liang, a member of the Paralympic Alpine Skiing National Team: Approaching the Olympic Games, I have stricter requirements for myself, and I hope that I can come up with good results.

Paralympic Alpine Skiing National Team Member Sun Hongsheng: Once the competition was super large (slalom), there was only one last door left, more than 300 meters away from that door, and I was thinking, I am flying or not flying, flying or not flying. Finally, for those few seconds, no, fly.

Paralympic Alpine Skiing National Team Member Zhang Wenjing: My dream, I want to go to the Olympic Games, I want to go to the Olympic Games to see, I see what my strength is.

Awards Plaza

Last day of 2021. After more than 40 days of preparation, the winter Olympic Games Beijing Awards Square stage was completed. During the Winter Olympics, the award squares of Beijing, Yanqing and Zhangjiakou will hold a total of more than 100 award ceremonies.

At the Summer Olympics, there is an award ceremony after each final. However, unlike the Winter Olympics, medals are awarded in the awards plaza of the competition area, which is a tradition that continues to this day in the Winter Olympic Games.

No matter where the athletes come from, the moment they take the stage will be the pinnacle of their shared glory and joy. Here, the Winter Olympics is a joyful event brought by passionate ice and snow.

The first expedition of the New Year

January 4, 2022, the first visit of the New Year.

General Secretary Xi Jinping is still most concerned about the upcoming 2022 Beijing Winter Olympics and Paralympic Winter Games.

He was concerned about the venue's operational planning and event service guarantee during the competition; he also carefully inquired about the coordination and scheduling of the three divisions and the various departments related to the competition.

He paid attention to the safety of athletes and whether the measures for epidemic prevention and control during the competition were complete, and also carefully understood the preparation of athletes in the Winter Olympic Village and the Winter Paralympic Village, which was meticulous.

In 5 years, the general secretary made 5 field visits. Every time, I will cheer for China's ice and snow athletes. This time, he came to the Erqi Factory Ice and Snow Project Training Base, which represents the cutting-edge scientific and technological force that helps the development of Ice and Snow Sports in China.

At the training base, the general secretary encouraged everyone to prepare scientifically, work hard, and strive for good results.