Strengthening the foundation and raising the slab of the house using GeoResin Deep Lifting & Floor Lifting methods

A detached house with a complex configuration:

• Dimensions: 17.7 x 16.3 m;
• Number of floors: 1 floor;
• Year built: 2022;
• Foundation: strip;
• First floor: concrete slab on ground.

The house is only three years old. Externally, there are no cracks in the façade and no obvious signs of disrepair. However, inside, the owner began to notice changes in floor level, localized deformations in the flooring, and problems with the door frames.

This is a classic case where the problem lies not in the foundation structure, but in the functioning of the soil beneath the slab.

Engineering diagnostics: what was the basis?

During visual inspection, specialists recorded local sagging of the slabs in the surrounding area.

Further technical closure established:

• The soil under the slab of the axles under the operating conditions;
• Empties under the slab up to 85 mm have been removed;
• The “slab-ground” contact is broken.

Following the results of the geodetic survey, the mental marks of 0.000 were added from –1 mm to –11 mm.

Why is this critical?

The base slab on the ground is insured for smooth transfer of pressure to the reinforced base.

When a part of the slab appears empty:

• The work of the stove is “on the fly”;
• Permanent tension increases;
• It is possible to repair cracks;
• Deformed completely;
• There are secondary problems with partitions and engineering.

This project’s video was posted by:

• Budinok is new;
• There is no full access to the base;
• Dismantling the substructure would mean actual reconstruction of the first one on top;
• It was necessary to work without any delay in exploitation.

Technical solutions: stabilization and flow control

Design and technical solutions were divided based on stagnant technology

GeoResin Deep Lifting & Floor Lifting, which conveys:

• Strengthening the soil base to depths of up to –4 m;
• Filling voids under the slab;
• Updating the “slab-ground” contact;
• Partial control of the rise and leveling of the slab.

Principle

Through technological openings of small diameter, injections of special geopolymer material are exposed.

Material:

• rapidly expanding;
• removes water from pores;
• strengthens weak balls;
• fill up the voids;
• forms a rigid composite mass near the ground.

As the expansion progresses, controls on the rise of the slab are created.

The process is accompanied by laser leveling in real time with an accuracy of up to a millimeter.

In this way, two tasks are carried out simultaneously:

• Stabilization of the base;
• Geometrically updated position of the slab.

How is this project different from the standard one?

• Complex configuration of the building in plan – uneven distribution of loads;
• New building – the need for the most delicate intervention;
• Local nature of the problem – the requirement of point impact without excessive lifting;
• Cavities up to 85 mm – risk of sudden redistribution of stresses.

The engineering task was not simply to “raise the floor”, but to:

• Restore the bearing capacity of the foundation;
• Exclude repeated settlement;
• Ensure the predicted long-term operation of the structure.

Progress and deadlines

The new complex works in 10 calendar days.

Without:

• dismantling the falsehoods;
• large-scale earthen works;
• tidying up the soil;
• Stopping the operation of the booth.

Result

• The empty bins under the stove are liquidated;
• Contact “slab-ground” updates;
• The base is reinforced to a depth of up to 4 m;
• The geometry of the substructure is stabilized;
• A further development of deformation is added.

The deputy rejected the 10-year guarantee on the work.

Once you recognize your situation, you are ready to seek technical diagnostics, such as:

• The excuse in the new booth “went sick”;
• Local information appears;
• The tiles crack for no apparent reason;
• The doors began to warp;
• After this, the situation deteriorates;
• At the hour of waking hours, the reinforced gate was broken.

Subsidence of a slab is not a cosmetic defect. This indicator has no significant health implications.

The earlier the engineering renovation is carried out, the less intervention is required for stabilization.

GeoResin technologies work precisely, quickly, and predictably—without the need for building reconstruction or structural specifications.

Every project begins with diagnostics and repairs, and certification is monitored by results and guarantees.