Abstract
On railway embankments, slope coverage are usually constructed to protect rain-induced slope failures. Concrete block plate work which is one of the slope coverage has been used to take place of planting treatment, and the main object is considered to protect an erosion of slope. But except the object, the work posses an effect of restraint on rise of ground water level in the embankment during heavy rainfall. This paper deals with an influence of the slope coverage on the restraint of ground water in the railway embankments. First, we discuss results of rainfall seepage simulations on several model embankments tests and rainfall seepage/slope stability simulations on actual railway embankments. Second, we propose necessary length of slope coverage during rainfall.
