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New Guanjiao Tunnel : ウィキペディア英語版 | New Guanjiao Tunnel
New Guanjiao Tunnel 〔http://baike.baidu.com/view/259189.htm〕〔http://www.hudong.com/wiki/%E6%96%B0%E5%85%B3%E8%A7%92%E9%9A%A7%E9%81%93〕() is located on the 2nd line of Qinghai–Tibet Railway in Guanjiao Mountain, Qinghai province. It is dual bores, double track rail tunnel. The total length of the tunnel is 32.645 km, which makes it the longest railway tunnel in China. China Railway First Survey and Design Institute is responsible for the design. The New Guanjiao Tunnel was designed for two parallel single-track tunnel with speed of up to 160 kilometers per hour. The total construction duration was projected to be 5 years. The tunnel was bored in difficult geological conditions and high altitude exceeding above sea level. The construction started in 2007 and was completed in April 2014.〔(世界最长高原铁路隧道——新关角隧道贯通 )〕 The tunnel was opened on 28 December 2014.〔(新华网: 世界最长高原铁路隧道——逾32公里长的新关角隧道通车 )〕 == References == 〔
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「New Guanjiao Tunnel」の詳細全文を読む
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