ABSTRACT
While greenfield sites at highly urbanized areas are often not available anymore, the continuous development of existing grey field sites is the only meaningful option. Every year, the underground space is being developed to a larger extent. An underground part of a structure can often stretch across the entire available land with excavation protected by retaining walls constructed directly next to existing buildings and infrastructures. One of the main challenges associated with underground constructions is their impact on existing buildings and other structures adjacent to the developed site. As these structures are often highly susceptible to excavation-induced ground movements, their behavior have to be considered in a design as one of the geotechnical-related limit states. The paper presents the analysis of the impact of new investments on existing structures as a way of assessing geotechnical risk inherent in the use of underground space, in limit state design framework of Eurocode 7.
