武昌—九江铁路扩能提速工程二标段既有线路路基在长期使用过程中出现了路基翻浆冒泥和基床下沉等病害.以该工程为背景,阐述了武昌—九江铁路路基基床病害的类型,分析了形成基床病害的原因以及病害产生的机理,在借鉴国内外常用的基床病害整治措施基础上,提出了行之有效的整治措施. Wuchang - Jiujiang Railway expansion subgrade speed up the second stage of the existing subgrade in the long-term use of the process of subgrade mud and bed subsidence and other subsidence diseases.This project as a background, described Wuchang - Jiujiang railway subgrade bed disease Type, the cause of formation of bed disease and the mechanism of disease generation were analyzed. Based on the common bedrock disease treatment measures at home and abroad, the effective measures were proposed.