Application of geosynthetic materials is widely spread on the Balkans in the last decade. Applications of these materials are usually related to slope stabilizations, landslides rehabilitation, embankments, improvement of foundation soil etc. Most of the experience for designing and application of geosynthetic materials in Macedonia was gained also in last decade. The ‘Geing Krebs und Kiefer International’ company has contributed significantly in the designing of many structures which involve geosynthetics. This paper presents the most significant structures designed by Geing Krebs und Kiefer which are considered in top projects on such structures in Macedonia. The structures presented in this paper mostly involve geogrids, reinforced soil systems (wire meshes and gabions) and gabions. Special attention is paid to the reinforced soil systems which are commonly used for construction of embankments and rehabilitation of landslides in the projects prepared by Geing Krebs und Kiefer. Design and construction aspects for each structure are presented in this paper.

Probably one of the most challenging geotechnical tasks in urban areas is supporting of deep foundation pits. In some regions this task is pretty hard to accomplish due to the limited experience of the contractors in the field of geotechnical structures, the lack of proper construction equipment, specific urban planning etc. Providing sufficient number of parking lots is the most common reason for the construction of underground levels in new buildings. On the other hand, such approach demands capable, experienced contractors and proper geotechnical design. This paper deals with several case studies of structures for retaining of foundation pits. The referred structures are constructed on different sites in the Republic of Macedonia. The depth of the excavation pits varies between 6 m and 10 m, but from design point of view more important is the complexity of the geotechnical conditions. The excavation pits are retained by diaphragm walls, steel struts, anchors and reinforced concrete pile walls.