Wing wall stabilisation in softened clay soil

Challenge

Softened clay soils beneath a wing wall caused movement and loss of support, threatening structural stability and long‑term performance.

Solution

Geobear used precision geopolymer injection to strengthen weakened clay and restore bearing capacity, stabilising the wing wall without excavation.

Wing wall stabilised

Movement successfully arrested

Soft clay strengthened

Improved soil stiffness achieved

Non‑intrusive method

No excavation required

Background

Wing walls play a critical role in retaining soil and supporting adjacent infrastructure, particularly at bridges and culverts.

Softened clay soils can lose strength due to moisture variation or long‑term ground movement, increasing the risk of settlement and structural distress.

Traditional repair methods often involve excavation and structural rebuilding.

Challenge

Ground softening beneath the wing wall had reduced bearing capacity, resulting in movement and instability.

A solution was required that could strengthen the clay subsoil and restore structural support without disruptive excavation or prolonged site closures.

Solutions

Geobear implemented a targeted geopolymer injection programme beneath the affected foundation area.

The expanding resin permeated the softened clay, increasing stiffness and improving load distribution.

Injection was carefully monitored to ensure controlled stabilisation without over‑lifting.

Results

The wing wall was successfully stabilised and further movement prevented.

The non‑intrusive solution improved long‑term ground performance while avoiding costly excavation and reconstruction.

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