Reconstruction of the Building of the Monument of Architecture and History - The Building of the Shamovskiy Hospital in the City of Kazan

The article highlights the measures and technical solutions used in the design of the enclosing structure of the pit for the newly erected underground extension to the Shamovskaya hospital in Kazan, in a pit about 20 m deep. A design feature is that the extension is being built in close proximity to the existing building of the former Shamovskaya hospital. When designing enclosing structures in such conditions, the main task is to solve problems related to ensuring their stability during soil development, as well as working together with the load-bearing structures of the underground structure. The results of the monitoring of the building's building structures during the reconstruction process are also presented. Based on construction monitoring data, the authors analyzed the development of horizontal and vertical deformations of the building foundation in connection with the construction of a deep pit in the immediate vicinity of the load-bearing walls of the building. General settlement deformations of a building are considered as the sum of individual components resulting from the influence of individual technological stages during the construction of an underground extension to the building. As the monitoring results showed, at the time of the study, the values of the maximum settlements (the absolute difference in settlements) of individual sections of the existing building, the horizontal movements of the enclosing structures of the pit did not exceed the limit values established by regulatory documents.