EcoArmour® In Action on Railway Cuttings

When a V/Line railway cutting in Merbein, Victoria fell into disrepair, Erizon® were called out to undertake a site visit and inspect the damage. During this visit, Erizon® noted substantial erosion that was visible at the batters, with the primary cause likely due to poor drainage that was supercharged by storm events, inappropriate cutting design, a lack of regular maintenance and potentially structurally weak soils. In addition to a standard site inspection, Erizon® also undertook a drone survey to generate a detailed 3D model to enable drainage modelling with a high level of accuracy and to determine the precise application area and rate for EcoArmour®.

   

Close Up of EcoArmour® being hydraulically applied to the slopes surrounding the railway tracks.

EcoArmour® is a Hydraulically Applied Synthetic Erosion Control Blanket, Providing a Safer Alternative With a 20+ Year Longevity.

   

With an abundance of native plant species that had to be carefully managed, the objective from V/Line was clear:

  • Reduce adverse and ongoing degradation
  • Address complaints from all stakeholders
  • Implement a functioning asset for the future
After inspecting the site, the Erizon® staff noted the following project challenges:
  • The project would have a short duration due to high intensity, seasonal rainfall
  • They were working with a sensitive receiving environment (a tributary of the Murray River)
  • Working with poor and structurally weak soils
  • Necessary bridge abutment protection
  • Management of native plant species
  • Adhering to stringent project timelines
V/Line undertook independent, rigorous assessments for the available erosion control products on the market. Their requirements list included the following:
  • Product Warranty
  • Design Life
  • Installation Time
  • If there were any requirements for soil testing & amelioration
  • If the product could be applied on top of dispersive soils
  • If earthworks were required prior to the application of the product
  • If plantation was required
  • What the ongoing maintenance costs would be
  • If the product was able to offer resistance to hydraulic forces and the impact of raindrops
  • What the cost would be (supply & install)
At the conclusion of the independent assessments, the results were presented to V/Line by consulting engineers, and Erizon® was chosen as the preferred contractor to supply and apply our robust erosion control blanket (EcoArmour®) for different erosion zones within their site.

   

Erizon® staff applying hydraulic erosion control blanket 'EcoArmour®' to railway batters for client.

During Application of EcoArmour® for Railway Project

Why did they choose EcoArmour®?

EcoArmour®’s innovative synthetic erosion control blanket stabilises surfaces for 20+ years while providing a product warranty and guarantee. With no surface preparation works required prior to the application, EcoArmour® can be applied without testing and rectifying underlying soils and can be applied directly on top of dispersive soils. With minimal ongoing maintenance costs, EcoArmour® can be applied quickly, utilising our specialist HydroRigs – and will dry within three hours of application. Compared to conventional alternatives like concrete matting and Shotcrete, EcoArmour® stands alone as a cost-effective solution that can withstand strong hydraulic forces. From start to finish, Erizon® handled this project with a focus on utilising advanced technology to deliver our promise of “Supply, Apply, Guarantee®”.

   

Drone shot of railway batters with EcoArmour® applied, showing the durable 'crust' that provides erosion control.

Post Application of EcoArmour® for Railway Project

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