Methodology and technology of underground floor construction underneath an historic building (Kamennoostrovsky Theatre in St. Petersburg)

摘要

The paper presents a case-history of full-scale underground development underneath a listed historic building in St. Petersburg where the construction method known as 'top-down' was used in the area for the first time in its unique restoration-oriented modification. The chosen method of analyzing underground structures and existing buildings based on two limit states using a visco-elasto-plastic soil model proved quite effective, of which the described case history is an apt illustration.