世界海拔最高的公路隧道雀儿山隧道正式通车
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World's highest highway tunnel opens in SW China
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| 2017年9月26日，世界上海拔最高的公路特长隧道——317国道雀儿山隧道正式建成通车。海拔6168米的雀儿山位于四川省甘孜藏族自治州德格县境内。因为地势陡峭、道路狭窄、缺氧、极寒，川藏公路的雀儿山段常被称为“川藏第一险”。早在2002年，雀儿山隧道方案论证和可行性研究工作启动。2012年6月，雀儿山隧道作为国家重点工程建设项目开工建设。雀儿山隧道项目路线全长12.997公里，其中隧道长7079米，双向两车道，隧道进口洞口海拔4378米，出口洞口海拔4232米。隧道建成通车后，过往车辆只需10多分钟就可以穿过雀儿山，不必再绕行长达两个多小时的危险山路。雀儿山隧道的建成通车，将进一步打通川藏交通大动脉，促进和带动藏区经济社会快速发展。[视觉中国] The Que'ershan Tunnel, stretching 12.997 kilometers on National Highway No 317, in Ganzi, Sichuan province, opens to traffic on Sept 26, 2017. It is said to be the world's highest tunnel on a highway. The tunnel, whose highest point is 4,378 meters above sea level, was completed 15 years after the launch of the project. With the opening of the tunnel, it takes only 10 minutes to pass through the perilous and steep Que'ershan Mountain that stands 6,168 meters above the sea level. The project is projected to become a new impetus to help drive the economic and social development of the remote Tibetan region. [Photo/VCG] |
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