铁道线路的路基病害中,翻浆冒泥所占比重较大,造成翻浆冒泥的原因可分为两大类:一是路基填料用粘性土,这种土壤可塑性大,加之施工时含水量过高,密实度达不到最佳密度的90％以上。线路开通后路基面承载力小于1.6公斤/厘米~2,造成路基陷槽,有的形成水囊。在机车车辆反覆冲击捣压作用下泥浆污染道床致使道床板结,失去弹性,严重影响行 Among the roadbed diseases of railway lines, the proportion of the sludges and sludges is relatively large, and the causes of the sludges and sludges can be divided into two categories: one is the cohesive soil for roadbed packing, which has great plasticity and the excessive water content during construction , The density of less than 90% of the optimal density. After the opening of the line, the bearing capacity of the roadbed surface is less than 1.6 kg / cm ~ 2, resulting in subsidence of the subgrade and the formation of water sacs. Under the impact of repeated impact of rolling and tamping of locomotives and muds, the muddy bed of the roadbed caused by mud pollution will lose its elasticity and seriously affect the line