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Embankment strengthening

Challenge

Embankment instability and loss of ground strength threatened infrastructure performance, requiring reinforcement without large‑scale excavation, environmental disruption or extended operational downtime.

Solution

Geobear delivered targeted geopolymer injection to strengthen soils in situ, improving load capacity and slope stability with minimal excavation and rapid return to service.

In situ ground strengthening

No bulk excavation required

Rapid curing solution

Fast return to operational use

Reduced carbon alternative

Lower environmental impact than reconstruction

Background

Ground investigations identified weakened embankment materials and localised voiding, reducing the structural reliability of the slope.

Left untreated, progressive movement could have compromised supported infrastructure and increased long‑term maintenance risk.

Challenge

Traditional stabilisation methods would have required significant earthworks, heavy plant access and prolonged disruption.

The client required a more efficient solution that would increase shear strength and stiffness within the embankment while maintaining site operations and minimising environmental impact.

Solutions

Geobear implemented a carefully designed geopolymer injection programme to improve the mechanical properties of the embankment soils.

Small‑diameter injection tubes were installed at defined depths to introduce a two‑component geopolymer beneath the surface. The material expanded on mixing, filling voids, densifying loose soils and increasing bearing capacity.

Real‑time monitoring ensured controlled improvement and uniform ground strengthening across the treated zone.

Results

The embankment achieved improved stability and long‑term resilience without invasive reconstruction.

The works were completed efficiently, reducing disruption, plant requirements and carbon impact compared with traditional earthworks solutions.

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