Keeping Adelaide Moving with Tramline Stabilisation

The tramline at Victoria Square Station in Adelaide faced a significant structural challenge due to an irrigation failure. Excessive water from the malfunctioning irrigation system seeped into the ground beneath the tracks, causing erosion of the supporting soils. This erosion resulted in the formation of voids that compromised the support beneath the concrete tramline. The instability was evident through early signs of track rocking and deflecting under load, which raised safety concerns and heightened the risk of potential service disruptions.

This process involved injecting a resin-based geopolymer beneath the 30m² section of the compromised track. The innovative solution effectively filled voids, provided ground improvement and restored a solid support base beneath the concrete tramway. Teretek® rapid strength gain properties allowed for effective reinforcement with minimal disturbance to the existing infrastructure.

The rapid delivery ensured minimal downtime with all works completed within a scheduled shutdown, enabling the tram service to recommence without any extra delays.

This successful project improved passenger safety and maintained the tram system’s operational reliability. It showcased how a fast, non- invasive approach can effectively address infrastructure issues while ensuring safety and preserving service quality.