解决高原铁路重大工程技术难题青藏铁路成功运行成关注热点——高原高寒铁路技术研讨会在京召开

曾经有国外专家认为，青藏铁路的修筑是一项“不可能完成的任务”。这主要是因为青藏铁路的修筑面临着三大难题：高寒缺氧、多年冻土、生态脆弱，其中，冻土路基的稳定性是青藏铁路工程建设面临的最大难题之一。今天，这条成功运营一年多的世界上海拔最高、线路最长的高原“天路”，已经无数次穿越了青藏高原的生命禁区、

Major Techniques in Plateau and High-cold of Qinghai-Tibet Railway become the Focus --Techniques Seminar in Plateau and High-cold of Railway in Beijing

Foreign experts had ever believed that the construction of the Qinghai-Tibet Railway was a mission impossible to accomplish. This is mainly because the construction of the Qinghai-Tibet Railway faced with three major problems： alpine hypoxia, permafrost, ecological vulnerability, in which the stability of permafrost roadbed is one of the biggest problems in the construction of Qinghai-Tibet Railway. Today, the successful operation of Qinghai-Tibet Railway with more than one year, the worldi-s highest and longest plateau line, has passed through the plateau area, as well as the permafrost region with countless times. Today, the Qinghai-Tibet railway is known as the Miracle built in the Frozen World. Because of this, at the Techniques Seminar in Plateau and High-cold of Railway held in Beijing in September 2007, the successful application of innovative technologies of Qinghai-Tibet Railway became the focus of participants and experts.