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Void filling – Bermondsey Dive

Challenge

Significant voiding developed beneath a dive site in Bermondsey, threatening ground stability and structural safety in a constrained urban environment.

Solution

Geobear delivered targeted geopolymer injection to fill voids and stabilise the ground, restoring support quickly without excavation or disruption to surrounding infrastructure.

Urban location

Works completed in restricted space

Targeted void filling

Cavities stabilised with precision

Minimal disruption

No excavation required

Background

Voids can form due to ground washout, historic structures or changes in subsurface conditions.

In dense urban areas, instability poses risks not only to the immediate site but also to adjacent infrastructure.

A fast, low‑impact solution was required to secure the ground.

Challenge

At a dive site in Bermondsey, voids beneath the surface were identified, creating concerns over settlement and potential structural movement.

Traditional excavation was impractical due to site constraints and the need to limit disturbance.

A solution was needed that could stabilise the ground efficiently and safely.

Solutions

Following site assessment, Geobear implemented controlled geopolymer injections through small access points.

The expanding resin filled the voids and improved surrounding soil strength, restoring ground stability without heavy plant or invasive works.

The process was carefully monitored to ensure precise delivery and performance.

Results

The voids were successfully filled and the ground stabilised, mitigating settlement risk.

Works were completed rapidly and with minimal disruption, ensuring the site remained safe and operational.

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