The building’s engineering systems are like a planet’s gravitational field: if density is lost at one point, the entire structure begins to shift. This exact scenario unfolded in a private house in Moscow. Four years after an extension was built, the owners noticed that the space had stopped being stable: ceilings began to “separate,” walls developed diagonal cracks, and the floor seemed to slowly sink into another geological reality.
The house was built in 2010 using traditional methods: brick walls, strip foundation, two floors. However, the later-built extension was located in an area of geological instability.
The building came into conflict with the soil, and this conflict began to manifest architecturally. When the structure loses its support, it no longer rests on the ground—it starts to fall into it.

Engineering diagnostics: uncovering hidden geology
URETEK engineers visited the site to conduct a structural and geotechnical audit. Analysis of project documentation, visual inspections, and monitoring of structural geometry immediately indicated the systemic nature of the deformations.

A key discovery was the site’s history:
there had previously been a pond here—meaning the building’s foundation contained moisture-saturated, loose soils prone to long-term secondary settlement.
To turn these assumptions into engineering facts, dynamic soil probing was carried out.

This method allows measuring soil resistance at different depths and identifying exactly where the bearing capacity is lost.

Results showed:
in the load transfer zone of the extension’s strip foundation, a layer of low-density, loose soils had formed, unable to support the building’s weight.
The foundation was no longer resting on the ground—it was “suspended” over voids.

Engineering design of stabilization
Based on the probing data, URETEK’s engineering department developed a customized foundation stabilization project. Its goal was not merely to stop settlement, but to recreate a dense geomechanical matrix beneath the foundation, capable of once again supporting and evenly distributing loads.
The main technology selected was the URETEK deep injection system—a highly reactive geopolymer compound that:

• penetrates microvoids in the soil
• expands under engineer supervision
• displaces water
• and forms a strong, incompressible body in the foundation zone

This is not filling — it is reprogramming the soil structure.

Engineering implementation
The work was carried out through small technological openings, without opening floors or damaging the interior finishes.

The URETEK polymer compound was injected to precisely calculated depths beneath the strip foundation of the extension.
Each injection was monitored in real time:

• structural movements were measured
• pressure was monitored
• soil response was tracked

Over two working shifts within a single day, the following was achieved:

• the soil under the extension transformed from loose material into an engineering-stable mass
• the foundation regained full contact with its supporting medium
• settlement was halted

At the same time:

• the house remained occupied
• furniture was not removed
• heavy machinery was not used
• the work proceeded almost silently
• the building was restored without interfering with the owners’ daily life.