As a result of the analysis of normative documentation and soil fixing works, a brief historical review of the physicochemical methods of soil fixing was presented. Examples of the application of these methods in Russia and the world are considered.

Keywords: subsidence soils, cementation, soaking, heaps, mudding, subsidence, deformation, pit, soil consolidation

Restoration and strengthening of building structures damaged during operation in conditions of constant soaking and aggressive influence of liquids. On the example of the overhaul of the floor structures of the premises and tunnels of the champagne factory "Abrau-Durso" were shown the most effective and technological ways to strengthen the load-bearing structures.

Keywords: shotcrete, concrete, reinforcement, bearing structures, reinforcement, bearing capacity, shotcrete, reinforcement, corrosion, repair, finishing

The use of benign technologies in the reconstruction of a building that is an object of cultural heritage is analyzed on a concrete example. Conclusions on the use of selected technology

Keywords: cultural heritage, cultural heritage object, preservation of cultural heritage objects, monument, sparing technologies, restoration, soil, consolidation, foundation, foundation, deformation, inspection

In this review article high-rise construction is considered, factors affecting the choice of a constructive system of a building are given. The shell (box-shaped) structural system is described in detail. The advantages and disadvantages of this structural system are listed.

Keywords: high-rise building, structural system (CS), shell (box-shaped) system, horizontal load, stiffness, stability, bezreskosnaya grille, diagonal grille, column, strapping beam, diagonal connection

The methods of injection fixing the soils of the base under the foundations of cultural heritage are considered. The specific examples show the features of soil consolidation by cementation and silicatization methods. The technological features of soil consolidation, taking into account the material of the foundations and the technical condition of cultural heritage sites are given

Keywords: cementation, silicatization, injector, soil, consolidation, foundation, object of cultural heritage, sediment, subsidence, deformation

The analysis of the projects for securing the soil foundations, which are part of the new construction projects of educational institutions in the Rostov region in 2016-18, is carried out. On the example of the construction of schools in the cities of Rostov-on-Don, Taganrog, Shakhty, Novocherkassk, Aksai and the village of Chaltyr, the main technical and technological solutions for soil consolidation are considered, depending on the engineering and geological conditions of the construction sites

Keywords: cementation, injector, soil, consolidation, foundation, soil piles, retaining walls, sediment, subsidence, deformation