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China opens world’s highest road tunnel
所爱隔山山可平：中国15年努力实现穿越川藏第一险
导读:世界海拔最高的超特长公路隧道正式通车。
The world’s highest road tunnel opened to traffic in southwest China’s Sichuan Province on Tuesday, 15 years after the project was started.
历经15年的准备之后，世界上最高的公路隧道于周二在中国西南部四川省通车。
The project, which cuts through Chola Mountain on the Qinghai-Tibet Plateau, consists of a 7-km tunnel and more than 5 km of auxiliary roads.
该项目由一条7公里长的隧道和超过5公里长的辅路组成，穿越青藏高原的雀儿山。
In Tibetan, the name Chola means mountains so high that eagles cannot fly over them. The peak stands at 6,168 meters above sea level and is covered with snow eight months of the year.
在藏语中，雀儿山意为“山鹰飞不过的山峰”。主峰海拔6168米，每年有八个月的时间被积雪覆盖。
The tunnel is located above 4,000 meters. Its length, the thin air and low temperatures at that altitude all contributed to the complexity of the construction, said Wei Yanqing, chief designer of the tunnel.
雀儿山隧道设计负责人蔚艳庆称，这条隧道位于海拔4000米以上，特长隧道、低含氧量、高海拔区低气温的叠加效应，导致工程勘察与施工“难上加难”
A feasibility study started in 2002 and it took eight years for experts to finalize a plan before construction began in 2012.
雀儿山隧道可行性研究始于2002年，专家们花了8年时间反复敲定了这项计划，在2012年开始建设。
The project cost about 1.28 billion yuan (196,900 U.S. dollars), according to Wang Qiang, head of the transport bureau in the Tibetan Autonomous Prefecture of Garze, which administrates the project area.
据西藏自治区甘孜州交通运输局局长王强表示，该项目耗资约12.8亿元人民币(196,900美元)。
He said the two-way tunnel has a speed limit of 40 kph and takes around 10 minutes to pass through.
王强表示，双向隧道的限速为40公里，大约需要10分钟才能通过。
Previously vehicles spent more than two hours driving around the mountain on a road threatened by landslides, blizzards and slippery ice, he said.
王强说，开通隧道前，车辆需要在山路上花两个多小时，遭受山体滑坡、暴风雪和滑冰的威胁。
来源:中新网