Among the three divisions of the Beijing Winter Olympics, Yanqing and Zhangjiakou mainly hosted snow competitions. Because Yanqing and Zhangjiakou are located in mountainous areas, the snow competition venues built in these two competition areas are particularly vulnerable to the various impacts of climate change in the mountainous areas, so the two competition areas have made careful arrangements in terms of windproof, lightproof and sunscreen.
A "Terrain Climate Protection System" has been installed at the National Bobsleigh Center in Yanqing, which reduces the impact of solar radiation on the track and avoids direct sunlight from affecting the quality of the ice surface.
To use a popular analogy, this system is like a large umbrella that can block the sun from the whole track, and there are two barriers to reduce solar radiation. The first is the awning located above the track, which is made of steel and wood and has good thermal insulation, waterproof and anti-corrosion functions. Compared with the other 16 bobsleigh international circuits in the world, the awning of the Yanqing Bobsleigh Center is larger, so that the shading work of the track can be better and more accurately completed.
During the design and construction process, the design team monitored the time and angle information of the solar incidence venue and track, and then accurately calculated the coverage area and angle of the awning through the protection analysis of the digital system. In this way, whether the sun rises in the morning or the sun sets at night, it can ensure that the track is not exposed to direct sunlight, ensuring that athletes' competition and training are not affected.
The second barrier is the sun blinds hanging on both sides of the track, don't look at it to look ordinary, in fact, it has a lot to offer. First of all, compared to other similar sun blinds, it is specially formulated to lengthen the sun blinds, so it has better sun protection. Secondly, its surface is coated with a special reflective material, which can effectively reduce the impact of solar radiation, and third, there are some tiny holes in its surface, which can improve its light transmittance and permeability, ensure that the sunlight will not be too strong, avoid interference with the race, and ensure the light of the track.
At The Zhangjiakou Genting Ski Park, a windproof system has been installed to keep athletes as little as possible from wind interference when competing. From the outside, this set of windproof devices seems to be no different from the general windproof net, but in fact, the material contains a lot of scientific and technological components. It is made of high-density polyethylene material, the interior has a complex three-dimensional space structure, so it has good light transmission performance, but also has a strong tensile performance, 1 meter width of the windproof cloth can withstand 1.2 tons of pressure, which makes its wind speed reduction performance is particularly good, 10 meters per second of high wind, after its blocking, the wind speed is reduced to 3.5 meters per second.
Secondly, it also has an anti-ultraviolet function, long-term exposure to the sun will not easily change color, and the surface decoration is also very beautiful, to ensure the visual effect of live TV during the game.
The last point is that its installation is very simple. For ease of operation, it is also equipped with a tower with an electrical control system installed inside. Usually the windproof curtain is received within the tower pole, when it needs to be installed, as long as the motor is turned on, the windproof curtain can be fully unfolded in a few minutes, fast and convenient.
With the guarantee of these black technologies, whether it is Yanqing Or Zhangjiakou, they can provide a suitable sports level for athletes in various sports of snowmobiling, sledding and skiing.
The image is a video screenshot