It is set to be located at Badaling, the site of the most visited section of the Great Wall of China, one of the world’s most iconic landmarks.

The station will be situated around 80 kilometres from Yanqing, which is due to play host to Alpine skiing, luge, bobsleigh and skeleton during the Games.

The station, which will run through mountains under the Great Wall, is part of the key high-speed network due to link Beijing and Zhangjiakou, which is located around three hours by road from the Chinese capital and will be another major Games hub.

It is hoped it will help passengers travel between the Games hubs which form part of Beijing 2022’s venue plan, with the aim being to cut the journey time from Beijing to Zhangjiakou to around 50 minutes.

Questions have been raised, however, as to whether this would actually be possible, with the railway set to be discussed at the first International Olympic Committee (IOC) Coordination Commission for Beijing 2022, which begins here tomorrow.

"The Badaling station will be located 102 metres below the surface, with an underground construction area of 36,000 square metres, equal to five standard soccer fields, making it the deepest and largest high-speed railway station in the world," Chen Bin, director in charge of construction for the China Railway No 5 Engineering Group, told the People's Daily newspaper.

The ¥58.41 billion (£7 billion/$8.7 billion/€7.8 billion) railway was approved last November, with the  line to the northern city in Hebei province set to be 174 kilometres long.

A ¥6.5 billion (£783 million/$974 million/€869 million) extension to the line was granted in June, from Zhangjiakou city to the Chongli resort, the planned home for freestyle skiing, snowboarding, cross-country, Nordic combined, ski jumping and biathlon events.

Members of the Coordination Commission are continuing to arrive here but it is not yet known whether the full number will be present for the visit.

It is chaired by Russian Olympic Committee President Alexander Zhukov, with IOC members Ivo Ferriani, Gian-Franco Kasper and CK Wu among the members.

A tour of the venues closest to the city centre - the Beijing Olympic Tower, the National Indoor Stadium, which will host ice hockey, and the National Aquatics Centre, the home of curling - is the first item on the agenda.

Beijing won the right to host the Games at the 128th IOC Session in Kuala Lumpur last year, narrowly defeating only rival Almaty by 44 votes to 40.