The application belongs to the technical field of
road engineering, and discloses a high-fill roadbed structure which comprises a
pile foundation, a bearing part and an inner filling material. The
pile foundation is embedded in a foundation, the bearing part comprises a bottom plate, a first side wall and a
buttress, the bottom plate is fixedly connected to the top end of the
pile foundation, the first side wall is connected to the opposite ends of the bottom plate and surrounds the bottom plate to form a containing groove, a plurality of spaces are arranged on the bottom plate, the
buttress is arranged on the inner side of the first side wall and is connected to the bottom plate and the first side wall, and the inner filling material is filled in the containing groove, wherein the inner filling material comprises lightweight soil, a
transition layer and a pavement structure layer, and the lightweight soil, the
transition layer and the pavement structure layer are sequentially arranged from bottom to top in the vertical direction. Through the above arrangement, the high-fill roadbed structure can improve the stability of the road, has high
bearing capacity, significantly reduces the risk of settlement,
instability and damage, does not need to occupy a
large range of
land resources, and is beneficial to
environmental protection.