AUTO CENTER IN KYIV

Object:Auto center building (frame type).

Location:Kyiv, Obolonsky district.

Design features:Strip foundations for frame columns.

Scope of work:36.5 m.p. of foundation.

The operation of large commercial properties often places increased stress on the underlying soil. In this project, specialists encountered the classic problem of man-made soils in dense urban areas.

Reason for contacting: visible deformations

The owner of the auto center contacted engineers after discovering alarming signs indicating a violation of the building’s geometry:

• Obvious subsidence of individual frame columns;
• Development of vertical and diagonal cracks in walls and partitions;
• Malfunction of facade systems and internal structures.

Engineering diagnostics: what is the root of the problem?

Technical survey and analysis of archival data on the geology of the site showed that the foundations are based onheterogeneous bulk soil.

Filled soils are characterized by low density and high compressibility. The weight of the building and vibration loads from the auto center’s operation led to compaction of the weak soil layers. This led to uneven settlement of the strip foundations that support the main load-bearing columns of the structure.

Why is this critical for a frame building?

In frame structures, each column distributes a point load onto the foundation. When one of the supports “sinks” below the design elevation:

1. Efforts are redistributed:Excess stresses arise in the beams and frame ties for which the structure was not designed.
2. Rigidity is violated:The building loses its geometric stability.
3. Risk of accidents:Long-term ignoring of subsidence can lead to deformation of the fastening units and loss of the load-bearing capacity of the entire frame.

Technical solution: GeoResin Deep Lifting Technology

To solve the problem, a design solution based on the method was chosenDeep LiftingThis technology is ideal for commercial properties, as it allows work to be carried out without interrupting business processes.

Project objective:

• Soil stabilization and strengtheningdirectly under the base of the strip foundation;
• Increasing the bearing capacity of the foundation;
• Stopping the process of further subsidence of columns.

The principle of operation and advantages of the method

Deep Lifting Methodconsists of injecting a two-component geopolymer composition to a significant depth (into the active zone of the compressible soil layer).

CONTROL:The whole process is accompanied bymonitoring, which allows you to stop the material feed exactly at the moment the required compaction coefficient is reached.

Features of implementation at this facility

• Local impact:The work was carried out in targeted areas of subsidence of 36.5 m.p. of the foundation, which minimized interference with the overall structure of the building.
• Cleanliness and mobility:The absence of heavy equipment and excavation work made it possible to maintain order in the auto center’s repair area.
• Speed:Taking into account the customer’s business objectives, the work was completed in the shortest possible time without dismantling floor coverings or stopping work.

The result of the work performed

During the project implementation the following indicators were achieved:

• Foundation stabilization:The soil under the strip foundations has been strengthened, and the bearing capacity has been brought up to the design values.
• Stopping deformations:The dynamics of crack opening has stopped.
• Preservation of structures:The frame columns are stabilized in their current position, preventing further distortion of the building.

The customer received a long-term warranty on the work performed, confirming the reliability of the geopolymer solution compared to traditional methods.

If your commercial building shows signs of subsidence (cracks, warped openings, floor deformation), don’t delay diagnosis. Technologies GeoResinallow you to quickly and effectively restore the stability of any industrial or commercial facility without major reconstruction.