ABSTRACT
The paper refers to one of the largest reinforced soil walls project in Europe, the Bar-Boljari Highway construction project in Montenegro. The highway runs on hilly terrain with high slopes, hence for a large part the soil has to be excavated upslope, while for the valley side high embankments have to be built to support the road. In order to minimize the height of the embankments, to minimize land occupancy, and to minimize the quantity of excavation at the toe and the quantity of required fill, the valley side was supported by reinforced soil walls, with height up to over 30 m. Segmental wall with uniaxial extruded geogrids connected by special connectors to small size precast concrete blocks for facing has been selected as the technology for this impressive project. The paper presents the overall reinforced soil walls project, the design of the walls in static and seismic conditions, the horizontal displacement analysis, and the construction method, with details of the most challenging situations.
