Large and complex object. The OSNOVA construction company carries out a set of works on the construction of a multi-level underground structure. The excavation of the pit is carried out under the protection of the earlier created, the so-called "wall in the ground". During excavation, the reinforced concrete wall is secured with temporary steel struts. Considering that the construction site is located in the floodplain of the Lybid River, all engineering measures have been taken to ensure reliable waterproofing. The dimensions of the pit are impressive: namely, it is 73 meters long, 53 meters wide and 13 meters deep. In terms of area, it is almost a football field, and the depth is a four-story building. On one half, soil is being removed, and on the other, the foundation is being poured.