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黔桂线由柳州至贵阳,全长607km,是云贵高原连接湛江、防城两港的重要通道,在路网中起着区域性的骨干作用,对发展广西、贵州、云南和四川等省的经济至关重要。该线虽几经技术改造,但因地质复杂、工程艰巨,现仍为等外级线路。限坡27.6‰,最大坡度29.2‰,半径为300m 以下曲线354处(其中金城江—麻尾间紧迫导线地段,有半径174～200m 曲线71处),外轨超高为80mm,顺坡率仍高达2.5～2.66‰,到发线有效长450m。当前金城江至都匀仍采用东风型内燃机车双机牵引1050 t,几经挖潜扩能,1986年运
The Guizhou-Guangxi line, from Liuzhou to Guiyang, has a total length of 607km. It is an important thoroughfare linking the Yunnan-Guizhou Plateau to Zhanjiang and Fangcheng and Hong Kong. It plays a regional backbone in the development of roads in Guangxi, Guizhou, Yunnan and Sichuan provinces Economics is crucial. Although the line after several technical transformation, but because of complex geological, engineering arduous, is still waiting for the outer line. The limit slope is 27.6 ‰, the maximum slope is 29.2 ‰, and the radius is 300m below the curve 354 (Jincheng River - Mawei between the urgent wire section, with a radius of 174 ~ 200m curve 71), outer rail ultra-high 80mm, 2.5 ~ 2.66 ‰, to the hairline effective length 450m. At present, the Jincheng River to Duyun still uses double-engine traction of Dongfeng diesel locomotive for 1050 tons,