Soil Creep in Building Foundation Strengthening on Experimental Site in Tomsk

The relevance of the study is due to the necessity of the foundation reinforcement and removal of the emergency status from a building located in Tomsk. Engineering-geological conditions, including the presence of a layered section, two aquifers, quarries and ravines, as well as the landslide slope of the right bank of the Tom River, require the implementation of comprehensive works for the ground survey and reinforcement.

Purpose: The aim of the work is to develop and implement design solutions for eliminating voids and cavities in the ground, and improve the load-bearing capacity of the building foundation. Engineering-geological surveys include borehole drilling and geophysical studies such as seismic and electrical exploration.

Research findings: As a result of the conducted work, design solutions are developed, including filling voids with injection solutions, installation of an external clip, and compaction of the ground foundation. These measures allow stabilizing the soil condition and prevent further development of deformations.

Methodology: Special attention is paid to the analysis of graphs, including the design scheme for compaction during hydraulic fracturing and the creep graph under constant stress state according to the rheological model by A.M. Samedov and D.V. Tkach for compacted soils. These graphs are compared and demonstrate a change in pressure during the compaction. Based on the experimental site, an actual compaction scheme during hydraulic fracturing is obtained, allowing to assess the effectiveness of the conducted activities and confirm the compliance of design solutions with real conditions.

Value: Research results confirm that engineering-geological surveys are essential stages of foundation reinforcement and removal of the emergency status of the building. They provide a reliable basis for making decisions and developing effective measures for reinforcement, which ultimately contributes to enhancing the safety and durability of structures. Soil creep is one of the key factors affecting the soil stress-strain state, and requires special attention in building design and operation.

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