The Importance of the Existing Engineering Geological Conditions During the Building Construction on the Terrain Affected by Sliding

Abstract

Performing of the deep excavations leads to an imbalance in the terrain and consequences are frequent occurrences of local sliding, collapse, settlement and even destruction of the adjacent facilities. Therefore, knowledge of the existing engineering geological data is very important, because in urban areas problems of interaction of the new facility and geological environment are not the only ones that need to be solved, but also the influences of the other structures located in vicinity. Aggravating circumstances are terrains with complex engineering geological conditions affected by active, dormant but also stabilized landslides. In this paper the importance of knowing engineering geological conditions and history of landslide processes is highlighted with the example of the construction of a shopping mall in a densely populated area of the Serbian capital-Belgrade. The results of engineering geological and geotechnical researches are chronologically presented starting from the first landslide activation in 1970 and its reactivations in 1981 and 1992. By the latest research results, the existence of “fossil” landslide is registered for the first time in this part of the terrain. Based on that, the project for the protection of surrounding terrain was done due to the deep foundation pit excavation.