我们广州铁路局怀化分局管辖湖南省境内湘黔线418.6公里(娄底至大龙),枝柳线571.6公里,共长990.2公里。湘黔线自1973年7月1日交付运营,枝柳线自1983年元月1日交付临管运营以来,在路基病害方面暴露了一些问题。湘黔线我分局管内线路通过湘西山区,地质条件复杂,加之当时的历史条件,设计标准 Huaihua Branch of Guangzhou Railway Bureau under the jurisdiction of Hunan Province, Hunan Province, 418.6 kilometers (Loudi to Dalong) Hunan Province, 571.6 km, a total length of 990.2 km. The Xiang-Guizhou line was delivered to operation on July 1, 1973. Since the delivery of the Zhiliu line to temporary operation on January 1, 1983, some problems have been exposed in the subgrade disease. Xiangqian line I branch pipe line through the mountains in western Hunan, complex geological conditions, combined with the historical conditions, design standards