Motorway Rockfill Embankments

The construction of Rockfill Embankments, although considered as a process of low difficulty, it presupposes the compliance of the design study with rigorous specifications. In this regard, a meticulous and systematic method of construction is required to ensure the optimum performance of this type of geostructure. In this paper, some basic requirements concerning the design and construction of rockfill embankments, as well as some engineering recommendations for a successful construction, are presented and commented. Advantages and weaknesses of rockfill embankment, in comparison to the traditional earthfill structures are also illustrated and the relevant fields of application are defined. Finally, a case study, dealing with the construction of a high motorway geostructure, consisting of crushed rock material at its lowest part and of reinforced earthfill at the top, is briefly presented.