How to prevent athletes from falling off the cliff by mistake?The Great Red Wall is installed at the National Alpine Ski Center
Alpine skiing is called the crown jewel of the Winter Olympics.Downhill athletes are expected to reach a top speed of around 140 kilometers per hour, and in the event of a mistake, protective nets installed on both sides of the course like the “Red Great Wall” will prevent them from falling off the cliff.Four types of protective nets have been installed at the National Alpine Skiing Center in Yanqing area of Beijing Winter Olympic Games according to different uses, with a total length of about 20,000 meters. The net surface is made of high-density polyethylene material with strong rigidity, which can escort athletes.The National Alpine Skiing Center has 7 courses, which respectively undertake 11 events such as downhill, Super G, giant slalom and slalom, and have won 11 gold MEDALS in total.The seven tracks are 9.2km long with a maximum vertical drop of 900m.It is the first Olympic standard alpine skiing course in China and one of the most difficult venues in the world.”It is very easy for downhill athletes to make mistakes when they turn and fly at speeds of more than 100 kilometers per hour, so protective nets are essential.”Lu Hongyou, head of Beijing Olympic Mountain operation of National Alpine Skiing Center, introduced.Viewers watching the downhill events in alpine skiing will notice the red protective nets on both sides of the course.In the protection net, net A is the hard isolation net, which is the first one installed on the track, and its function is to firmly restrict the athlete who has made A mistake within the track area.The A-net is the strongest and highest of all, with double-layer A-nets up to 5 meters high used on most of the sides of the track.A careful observation will find that there is also an anti-cutting skirt installed on the lower side of the A net. The metal wire is inserted into the tight mesh, which can prevent the skis of athletes from being inserted into the net or cut off the net.B network is a buffer network, the height is generally about 2 meters, its erection depends on the difficulty of the track, such as in the faster corner outside, need to erect 3 layers or more layers;In some dangerous areas flanked by cliffs, six layers of protective netting will be installed.When the errant athlete runs off the track, the multi-layer B-net can be used to stop the athlete relatively gently.In some very dangerous corners and cliffs, air cushion walls need to be installed on the outside of B net to prevent athletes from falling off the cliff.In addition to the A net and B net installed on the track, there is A BC net, which is slightly shorter than THE B net, installed in the end area of the race to protect the view of the spectators and broadcasters.In the National Alpine Ski center, there are also a lot of C-nets, which have no protective function and serve as a partition and warning.In addition to the “Great Red Wall” on both sides of the course, there are also two blue lines on the ski course. The blue line is called the guide line, which is also specially set up for safety, to provide relatively accurate and reasonable skiing route for the athletes.”The guide line is painted from the top of the mountain with a spray can and skis on. The paint is made of non-toxic and tasteless food coloring, which is very environmentally friendly.”Lu hongyou said with a smile.(source: Beijing Daily) For more exciting content, please download the “Big Wuhan” client in each major application market.