When constructing embankment on soft soil foundation, due to the large density of ordinary fillers, the additional stress of the foundation caused by their own weight is large, which often causes excessive uneven settlement and settlement of the subgrade. Due to the low density and super lightweight characteristics of EPS, after a certain depth of replacement, it can effectively reduce the dead weight of the embankment, reduce the additional stress of the foundation, reduce the settlement of the embankment on the soft soil foundation, and improve the stability of the foundation.

During the filling process of EPS embankment, attention must be paid to the connection between EPS and general filling sections. A transition section shall be set at the longitudinal connection section of EPS and soil embankment, that is, the EPS block shall be connected with the soil embankment in the form of steps, and the same is true in the transverse direction. At the same time, the EPS block shall be paved in a crisscross manner in the longitudinal and transverse directions, so as to facilitate the continuous stress and deformation of the EPS block.