Gas Filling Station, Krasnoyarsk, Russia
OBJECTIVE
Strengthening of weak subsoil beneath a building constructed on a raft foundation at a fuel station.
Restoration of horizontal alignment of the structure following differential settlement, with one side subsiding by more than 35 cm (severe tilt).
TECHNOLOGY
Soil improvement using controlled hydrofracturing combined with high-precision foundation lifting (slab lifting) by means of the PolyJET® injection method.
MATERIAL
PolyJet FT structural expanding polyurethane resin for soil injection, with a reaction time of less than 30 seconds.
DESCRIPTION
Geodetic leveling revealed significant differential deformation of the raft foundation slab, with settlement exceeding 35 cm along one axis of the building.
Site investigations determined that the progressive deformation was associated with groundwater influence and the presence of weak man-made (technogenic) soils.
The resulting structural distortion led to substantial operational restrictions.
RESULTS
Ground improvement was performed beneath the entire slab area and along the perimeter to create a stable load-bearing base prior to structural lifting operations.
Subsequently, controlled high-precision slab lifting was executed to restore the foundation to the design elevation.
As a result:
Strengthening of weak subsoil beneath a building constructed on a raft foundation at a fuel station.
Restoration of horizontal alignment of the structure following differential settlement, with one side subsiding by more than 35 cm (severe tilt).
TECHNOLOGY
Soil improvement using controlled hydrofracturing combined with high-precision foundation lifting (slab lifting) by means of the PolyJET® injection method.
MATERIAL
PolyJet FT structural expanding polyurethane resin for soil injection, with a reaction time of less than 30 seconds.
DESCRIPTION
Geodetic leveling revealed significant differential deformation of the raft foundation slab, with settlement exceeding 35 cm along one axis of the building.
Site investigations determined that the progressive deformation was associated with groundwater influence and the presence of weak man-made (technogenic) soils.
The resulting structural distortion led to substantial operational restrictions.
RESULTS
Ground improvement was performed beneath the entire slab area and along the perimeter to create a stable load-bearing base prior to structural lifting operations.
Subsequently, controlled high-precision slab lifting was executed to restore the foundation to the design elevation.
As a result:
- The foundation slab was realigned within allowable horizontal tolerances;
- Further development of differential settlement was eliminated;
- Full structural serviceability was restored.
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Case studies
GeotechSintez — the manufacturer of materials and developer of technologies for soil stabilization and geotechnical solutions.
We create geotechnical solutions where traditional methods are ineffective or uneconomical by combining a scientific and technical approach with practical experience. Thanks to our unique expertise, comprehensive range of modern technologies, and dedicated service, our experts have successfully solved over 100 geotechnical tasks, including highly critical projects and those in harsh climatic conditions.
We create geotechnical solutions where traditional methods are ineffective or uneconomical by combining a scientific and technical approach with practical experience. Thanks to our unique expertise, comprehensive range of modern technologies, and dedicated service, our experts have successfully solved over 100 geotechnical tasks, including highly critical projects and those in harsh climatic conditions.
More than 100 projects completed by company experts
100+
Over 200 satisfied clients
200+
Over 40 years of combined expertise
40+