Abstract
When railway embankments are affected by rainfall, emergency restoration using large sandbags is often adopted,
but the removal of large sandbags and the reconstruction of embankments when train service resumes are factors that prolong the construction period and increase construction costs. Therefore, in this study, we conducted a watering and loading experiment using a scaled-down model for the purpose of evaluating the subsidence and deformation characteristics of a structure covered with soil on the front without removing large sandbags. From the results, it was found that the proposed structure is sufficiently stable against rainfall, and that the amount of horizontal displacement and subsidence at the top of the embankment that occurs in the sandbags during the loading of the train load is reduced by the soil covering. Furthermore, by osmotic flow analysis that can reproduce the experimental results, it was confirmed that the crushed stone layer in the embankment model has the effect of reducing the water level and saturation in the soil cover and improving the stability of the restoration embankment.
https://ror.org/036vt3264 
