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Port of Hernesaari – internal erosion control

Challenge

Internal erosion within port structures threatened long‑term stability and durability, requiring ground improvement and seepage control without disrupting marine operations.

Solution

Geobear delivered targeted geopolymer injection to control internal erosion, strengthen soils and seal seepage pathways, restoring stability with minimal operational impact.

Marine infrastructure protected

Internal erosion mitigated

Seepage pathways reduced

Targeted ground sealing

Minimal disruption

Works completed within live port environment

Background

At the Port of Hernesaari, signs of internal erosion were identified within ground structures supporting marine infrastructure. Continued material migration and seepage posed risks to stability and long‑term performance.

A rapid and controlled remediation approach was required to safeguard the asset while maintaining port activity.

Challenge

Traditional excavation or large‑scale reconstruction would have caused major disruption within the operational port.

The client required a precise ground treatment method capable of addressing erosion mechanisms and improving soil integrity in situ.

Solutions

Geobear implemented a precision geopolymer injection programme focused on affected zones.

was injected through small access points into the soil matrix, filling voids, binding loose material and sealing seepage paths contributing to internal erosion.

Injection parameters were carefully controlled to ensure targeted treatment and optimal ground response.

Results

Internal erosion was controlled and ground stability restored without interrupting port operations.

The solution delivered long‑term performance improvements while reducing environmental impact and programme duration compared to traditional methods.

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