As we know, the Qinghai-Tibet Railway
traverses many mountains. The most famous three ranges, Kunlun, Tanggula and
Nyainqentanglha mountains. No doubt, these mountains are beautiful landscape on
Tibet Plateau, but do not ignore the tunnels on the Qinghai-Tibet Railway. They
can also become good memory of your Tibet train journey. The
following are the most famed tunnels on the track.
Fenghuoshan
Tunnel - the world's highest tunnel
Fenghuoshan Tunnel of Qinghai-Tibet Railway built at 4,905 meters above sea level is
known as the most elevated one on frozen earth in the world. With 1,338 metres
(4,390 feet) long, it is located at the eastern edge of the Hoh Xil mountainous
region between the Kunlun and Tanggula mountain ranges.
This area is known as “unmanned area” due
to the harsh environment and lack of oxygen. The annual average temperature
here is minus 7 degrees Celsius. In winter, the temperature drops to as low as minus
41 degrees Celsius. The oxygen content is only 50% of that at sea level. Therefore,
it is hard to imagine how those workers constructed this tunnel.
Kunlun
Mountain Tunnel – the world's longest plateau
tunnel
The Kunlun Mountain Tunnel with a total
length of 1,686 meters is the world's longest plateau tunnel built on frozen
earth. Kunlun Mountains are one of the longest mountain chains in Asia,
extending more than 3,000 km. In the broadest sense, it forms the northern edge
of the Tibetan Plateau south of the Tarim Basin and the Gansu Corridor and
continues east south of the Wei River to end at the North China Plain.
Liuwu
Tunnel – the last tunnel of the Qinghai-Tibet
Railway
Liuwu Tunnel known as “the Lhasa Gate of
Qinghai-Tibet Railway” is the last tunnel before arriving at Lhasa station. The
tunnel is built in the Tibetan architecture style. Liuwu, a samll town in the
suburbs of Lhasa, is selected as the site for the Lhasa Railway Station which
brings new life for every household in this town. Liuwu was once a poor,
out-of-the-way village. In the past, people here had to take a boat to cross Lhasa
River to downtown Lhasa, but now it takes only 10 minutes to drive from Liuwu
Village to downtown Lhasa.
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