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据铁道部门消息,内昆铁路复建工程创造了我国铁路建设史上的多项记录,它的修建标志我国铁路建设水平再上新高。 内昆铁路复建工程全线新建地段盘旋在湍急的江河上,匍匐于崇山峻岭间,隧道和桥梁的总长189 909延长米,占线路总长的53.1％,其中隧道140座,桥梁247座,桥梁和隧道的密集程度,为全国铁路建设史之最。特别是大关至昭通越岭地段,桥梁和隧道总长占线路总长度的80.7％,更为世界铁路建设史罕见。 全线新建地段跨越四川盆地和云贵高原两个地形区,限制坡度达23.5‰,创造了我国铁路建设又一新
According to the news from the railway authorities, the reconstruction project of Neijiang Railway has created a number of records in the history of railway construction in our country. The construction of the railway marked the new high of railway construction in our country. The new section of Neijiang Railway Reconstruction Project circled over the swirling rivers and crawling on the mountains. The total length of the tunnels and bridges was 189 909 meters long, accounting for 53.1% of the total length of the line, including 140 tunnels, 247 bridges, bridges and tunnels The intensity of the national railway construction history. In particular, from the mark to the Zhaotong cross-section, the total length of bridges and tunnels accounts for 80.7% of the total length of the line, making it even rarer for the world’s railway construction history. All the new sections across the two terrain areas of Sichuan Basin and Yunnan-Guizhou Plateau, limiting the slope of 23.5 ‰, creating a new railway construction in our country