Abstract
Object. Improve the geotechnical monitoring of the system “deformed building – driven prismatic piles in the composition of the strip grille – soil base with a weak underlying layer” before, during and after the supply of the existing grilles of the monolithic reinforced concrete slab. Method. Standard field and laboratory methods for determining the physical and mechanical properties of soils; normative methods of inspection of a technical condition of bearing building designs, their bases and the bases; methods of mathematical statistics for processing the results of experiments; long-term geodetic observations of deformations of a brick building on a pile foundation before and after its strengthening. Results.A system of geotechnical monitoring and scientific and technical support of the system "deformed building – driven prismatic piles as part of a belt grid – soil base with a weak underlying layer" was developed and tested on a typical natural object before and after supplying monolithic reinforced concrete slabs, in particular: the actual parameters of its foundations and foundations and their changes over time are determined; conducted geodetic observations of the deformations of the object before, during and after its strengthening to establish patterns of development and stabilization of these deformations over time, etc. Scientific novelty. The structural and technological solution of strengthening the foundations of driven prismatic piles in the belt grid by bringing under the existing grilles monolithic reinforced concrete slab and obtained new research data on the change of stress-strain state of the system “deformed building – driving prismatic piles in the belt grid – soil weak underlying layer” due to the supply under the existing grilles of the plate. The practical significance. Developed and implemented in geotechnical practice constructive-technological solution of reinforcement of foundations from driven prismatic piles as a part of a tape grid by bringing under existing grilles of a monolithic reinforced concrete plate and the corresponding technique of geomonitoring.
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