February 13,
Scheduled for 10 a.m
Genting Ski Park in Zhangjiakou Area of the Beijing Winter Olympics
Freestyle ski slope obstacle course competition,
Cancellations due to weather conditions are carried out today.
The new match time will be announced as soon as possible.
Why are ski races afraid of snow?
First of all, snow will have an impact on the track. First, the accompanying heating when it snows will affect the snow temperature and snow quality of the track, so the type and amount of waxing of the athlete's snowboard needs to be adjusted accordingly. Second, the new snow brought about by snowfall will make the surface of the track soft and the friction increase, which is not conducive to the players. And the low visibility in snowy weather will affect the vision of athletes and referees. Especially for athletes who are sliding at high speeds, it is very dangerous.
So, to what extent does the snowfall stop the game? The reporter learned from the track management that this has nothing to do with the amount of snow, but the viscosity of the snow surface of the track needs to reach a certain standard before the race is suspended. There will be professionals who will be responsible for checking and judging.
Genting Ski Park: Ski doctors are fully staffed and can be transported in the first time
On the 12th, Genting Ski Park welcomed the snowboard obstacle course chase mixed team final in the snow and wind. The Genting venue complex also conducted official training. All 138 medical staff were on duty, and on the slope obstacle course of more than 400 meters, the medical team of 4 points and 2 spare teams were waiting.
The National Cross-Country Skiing Center wind-blown snow clears the snow trough
On the 12th, the National Cross-Country Skiing Center also held a women's 4X5 km relay competition, athletes used the open snow trough in the competition, if there is snow in the snow trough, it will greatly affect the speed and performance of athletes.
The mountain operation team of the venue activated the emergency mechanism in advance, arranged a snow clearing team of 20 people, and carried out snow blowing operations on the 5-kilometer track to fully ensure the operation of the event.
Heaven is not beautiful,
How to "Snow Ruyi"?
In the snowy weather, what is the most important challenge for "Snow Ruyi" to maintain the normal progress of the competition? Wang Jingxian, deputy director of the second division of venue construction of the Planning and Construction Department of the Beijing Winter Olympics And the facility manager of the ancient poplar stadium group, said: "For the facilities of the venue, the main impact is the underground rail cable car, we have a means of transporting athletes from the bottom of the mountain to the top of the vertical mountain, the underground rail cable car has a lot of tracks are laid obliquely on the mountain, once the snow is frozen, there will be great hidden dangers for the safe operation of the cable car." ”
The "Xue Ruyi" underground rail cable car is independently developed and manufactured by the mainland, which can help athletes quickly go to the top cloister athletes' comprehensive area after the end of one round of competition to prepare for the next round of competition.
"We have also done a lot of emergency plans for this aspect, and we have done many emergency drills before. We have arranged many shifts, and the staff has taken turns to blow snow and de-icing the tracks to ensure that the track lifts can ensure that the athletes can smoothly climb the mountain during the race. ”
If the snow is accompanied by strong winds, how can the "snow be as expected"? In terms of windproof, "Xue Ruyi" has the double "blessing" of "geographical advantage" and "people", when the museum was first built, the natural drop of this valley of Chongli ancient poplar trees was more than 130 meters, and there were mountains on both sides that could shield or weaken the wind, and the later construction of the windproof net ensured that the wind speed in the starting area of the site was reduced to less than 4 meters per second.
"We did a lot of wind measurements at key points on the site a few years ago, collected a lot of meteorological data, and then the FIA recommended a company from Austria that specializes in wind protection, and they have a lot of experience in building a ski jump windproof net. They analyzed and modeled this data to come up with an optimal location to build a windbreak net on the site, the most effective position is in the southwest corner of the jumping platform, a total of 5 pillars pulled up 4 pieces of wind net, for the previous few games, this method also played a big role. Wang Jingxian said.