GeoStabilization International delivers advanced ground improvement solutions for rail infrastructure across Canada. RailJET® is GSI’s patent-pending jet-grouting–based technology engineered specifically for railway environments where access constraints, limited track windows, and long-term performance are critical.
Designed for freight, passenger, and industrial rail systems, RailJET® strengthens soft or underperforming subgrades with minimal surface disruption. The system is particularly effective in corridors affected by glaciated soils, saturated deposits, seasonal freeze–thaw cycles, and remote access limitations.
RailJET® is a modified jet-grouting process that stabilizes railroad subgrades by mixing in-situ soil with a cementitious slurry. Using high-pressure horizontal fluid jets, the system forms soil-cement columns beneath the track structure.
Mounted on a Hi-Rail platform, RailJET® can be deployed directly from the track without supplemental rail equipment. This allows crews to operate efficiently within restricted work windows and in locations where traditional excavation would be disruptive or impractical.
The resulting soil-cement columns, typically 8 to 16 inches in diameter depending on subsurface conditions, reinforce the subgrade in both bearing and shear. The process also fills ballast pockets, improving load distribution and track uniformity.
RailJET® improves subgrade performance from within the existing track structure by creating engineered soil-cement reinforcement zones beneath active rail lines.
Because the system strengthens the subgrade in place, excavation and full track removal are avoided, allowing stabilization to be completed efficiently while minimizing operational disruption.
RailJET® is suitable for both planned improvement programs and emergency stabilization efforts. It is used to address:
RailJET® provides measurable performance improvements, including:
By reinforcing the subgrade in place, RailJET® helps extend infrastructure service life and reduce long-term maintenance demands.
RailJET® is delivered through GSI’s integrated design-build approach, combining geotechnical engineering expertise with specialized Hi-Rail-mounted equipment.
If your corridor is experiencing subgrade settlement or recurring geometry maintenance, GSI can evaluate site conditions and determine whether RailJET® is an appropriate stabilization strategy.
Submit a request through our contact form to schedule a site assessment.
