This article discusses the problem of determining the parameters of the underground structure during large-block construction. The construction of buildings from large modules is a method of building construction, which is based on the use of ready-to-assemble modules of large sizes. This construction method allows you to significantly speed up the process of building construction, reduce construction costs, and ensure a high level of quality and functionality of structures, primarily due to the fact that these structural blocks are built in factory conditions. They can be made of various materials such as concrete, steel or composite materials. These modules can include not only walls and partitions, but also floors, ceilings, electrical wiring, plumbing and other elements, which reduces the assembly time on site.

Keywords: large-block construction, construction of the underground part of a large-block structure, building structures, technologies and organization of construction production.