Challenge
Void formation and ground instability beneath a water barrier structure required stabilisation to maintain asset performance and prevent further deterioration, without intrusive excavation or service disruption.
Solution
Geobear delivered targeted geopolymer injection to fill voids, improve ground strength and stabilise the structure with minimal surface disruption and rapid return to operational use.
Localised sub‑surface stabilisation
No excavation required
Operational continuity maintained
The Abbeydale water barrier forms part of a critical water management asset. Ground instability and void development beneath the structure had reduced support, creating a risk of further settlement and potential service impact.
Water‑related assets are particularly sensitive to ground movement due to fluctuating moisture conditions and the potential for washout of fines. Early intervention was required to maintain structural integrity and avoid more extensive remedial works.
Excavation around a live water asset would have introduced operational, environmental and safety risks. Traditional reconstruction methods would have required greater plant access, extended programme duration and disruption to service.
A solution was needed that could address voiding and improve ground bearing capacity while protecting the integrity of the structure and maintaining operational continuity.
Geobear implemented a precision geopolymer injection programme designed to stabilise the ground beneath the affected area. Small‑diameter injection points were installed through the surface at predetermined locations based on site investigation data.
The two‑component geopolymer was injected at depth where it expanded to fill voids, bind loose material and increase bearing capacity. Controlled expansion enabled stabilisation without inducing detrimental movement in the structure.
Works were delivered with minimal plant and surface disruption. The rapid curing characteristics of the geopolymer allowed the asset to remain operational throughout the intervention.
The voiding mechanism was addressed and ground support reinstated without excavation. The water barrier structure was stabilised, reducing the risk of further settlement and extending service life.
Delivery was completed within the agreed programme, maintaining operational continuity and avoiding the disruption associated with conventional ground replacement techniques.
Don't let unstable ground put your business at risk. Our commercial team can provide a clear assessment and a fast, effective solution tailored to your operational needs.
