An expert assessment of the construction conditions during the excavation of královopolský tunnel

摘要

As a result of the excavation of Královopolský tunnel, situated under Dobrovského and Veleslavínova streets in Brno, some depressions and inclinations of existing buildings have happened. In the article we are dealing with the time flow of deformations on representative buildings and the process of long-term registering of cracks in the time-dependency. The malfunctions were monitored after the excavation of check tunnels in the 2001 – 2006 period and again during the excavation in 2006 – 2007; they are monitored till nowadays. The monitoring records have been entered into the tables in the time-dependency and these dependencies were graphically presented. On the basis of 'Static ensuring of the existing surface building' project documentation the static ensuring was projected and lastly implemented in most of the objects.