三级aa视频在线观看-三级国产-三级国产精品一区二区-三级国产三级在线-三级国产在线

Global EditionASIA 中文雙語Fran?ais
Sports
Home / Sports / 2022 Winter Olympics

Sustainable Games commitment crystallizes with ice installation

By SUN XIAOCHEN | China Daily | Updated: 2021-05-14 07:19
Share
Share - WeChat
The National Speed Skating Oval in downtown Beijing will operate as a multifunctional venue after the 2022 Winter Olympics. [Photo/Xinhua]

Beijing's vision of hosting sustainable Winter Olympics is materializing in a big way with the completion of Asia's largest ice surface.

As the only purpose-built venue for Beijing 2022 in the capital's downtown area, the National Speed Skating Oval is already gearing up for post-Games operations after the success of a test to make a full-scale ice surface that covers its entire ground area, including the 400-meter track and the inner space reserved for registration and warm-up activities during competitions.

The 12,000-square-meter ice sheet, the largest single-piece formation of its kind in Asia, will help diversify the venue's functionality beyond 2022 thanks to in-built control units capable of maintaining different ice temperatures in different parts of the layer. This flexibility will, therefore, make the oval compatible with all ice-sports disciplines.

The ice coverage extending to the inner ground, a design rarely seen at similar venues elsewhere, is considered a game-changer.

"The full ice design will help facilitate our operation after the Olympics by making it possible for the venue to stage more kinds of ice-sports competitions and recreational activities," said Feng Gang, a deputy director of planning and development at the venue.

The venue operations team has also devised plans to host future programs of ice hockey, short-track speed skating and figure skating on the 6,000-sqm central area.

The full-cover ice sheet was produced by an all-Chinese team over seven days with guidance from Canadian ice technician Mark Messer, who visited Beijing earlier this year to oversee the ice-making process for an April test event.

"By making a larger area of ice all by themselves, our local ice makers have gained huge experience and tested their craft to near the Olympic standard," said Geng Baonan, a manager of the venue's ice-making project.

Built on the former site of the 2008 Summer Olympics' archery range, the National Speed Skating Oval will stage 14 long-track speed skating medal events at next year's Games, which will run from Feb 4-20 in downtown Beijing, its northwest Yanqing district and co-host Zhangjiakou, Hebei province.

The venue, also known as the "Ice Ribbon" due to its slick exterior lighting beams, is expected to play host to mass sports promotional activities and commercial ice-sports shows in the future.

Another technical highlight of the oval is the use of an eco-friendly cooling system that adopts carbon dioxide as a refrigerant, instead of the harmful substance Freon, for the first time in Olympic history.

The new system, which freezes quicker and is more stable than the old technique, helps maintain consistent temperature, density and firmness of ice across the track, allowing skaters to push to their limits.

Its low-energy operation is estimated to save 2 million kilowatt-hours of electricity annually compared to the old system.

Chinese snow-how

Meanwhile, Chinese researchers have developed two new instruments to evaluate conditions for alpine skiing.

The instruments, which evaluate the hardness of snow by measuring the size of particles, will be used at Beijing 2022 as well as polar expeditions. Skiers currently mostly rely on personal experience to evaluate slope conditions.

The new instruments provide more accurate and clear indexes to gather data on the quality of ice and snow, according to researchers from the Chinese Academy of Meteorological Sciences (CAMS) and the Nanjing Institute of Astronomical Optics and Technology of the National Astronomical Observatories under the Chinese Academy of Sciences.

sunxiaochen@chinadaily.com.cn

Most Popular

Highlights

What's Hot
Top
BACK TO THE TOP
English
Copyright 1995 - . All rights reserved. The content (including but not limited to text, photo, multimedia information, etc) published in this site belongs to China Daily Information Co (CDIC). Without written authorization from CDIC, such content shall not be republished or used in any form. Note: Browsers with 1024*768 or higher resolution are suggested for this site.
License for publishing multimedia online 0108263

Registration Number: 130349
FOLLOW US
主站蜘蛛池模板: 亚洲成在人线久久综合 | 欧美毛片视频 | 久久成人激情视频 | 欧美专区一区二区三区 | 亚洲黄网址 | 一级做a爱片久久毛片 | 国产欧美精品一区二区色综合 | 亚洲欧美综合日韩字幕v在线 | 欧美黄色一级视频 | 亚洲爱色 | 久久青草免费97线频观 | 真人女人一级毛片免费视频观看 | 中文日产国产精品久久 | 国产高清在线视频 | 亚洲精品无线乱码一区 | 搜索毛片 | 一区二区三区免费视频播放器 | 亚洲精品片 | 自拍视频第一页 | 伊人影院在线观看视频 | 成人久久久久久 | 成人免费网站视频 | 日本三级a做爰视频东爱 | 老年人一级毛片 | 6080午夜一级毛片免费看 | 亚洲 欧美 国产 日韩 制服 bt | 色久综合在线 | 亚洲三级黄色片 | 亚洲国产日韩在线成人蜜芽 | 黄色小视频在线看 | 日韩在线视频免费播放 | 亚洲欧美自拍视频 | 成年男女的免费视频网站 | 97影院午夜午夜伦不卡 | 国产女人精品性视频 | 91视频免费观看高清观看完整 | 久久99精品久久只有精品 | 免费播放欧美毛片 | 色国产在线视频一区 | 欧美18性欧美丶黑吊 | 久久综合精品国产一区二区三区无 |