Rock Bag Applications
Rock Bag Applications
Versatile erosion, scour, and infrastructure protection for marine, civil, and environmental projects.
Marine & Coastal Applications
- Coastal Defense: Attenuates wave energy to protect shorelines, beaches, dunes, tidal inlets, and sand nourishment sites—using flexible, habitat-friendly units rather than rigid structures.
- Ports, Harbours & Seawalls: Provides toe protection, revetment reinforcement, and scour resistance around pylons, wharves, and quay walls.
Bridges & Substructure Support
- Bridge Pylons & Foundations: Shields structural supports from fierce currents and sediment displacement.
- Culverts, Spillways, Causeways: Stabilizes waterway infrastructure, especially in flood and erosion-prone zones.
Offshore Energy & Subsea Infrastructure
- Offshore Wind Turbine Foundations: Secures monopiles and prevents scour under dynamic marine conditions.
- Oil & Gas Pipelines / Cables: Stabilizes subsea installations, safeguarding essential infrastructure from movement and abrasion.
- Subsea Platforms & Floating Units: Anchors and stabilizes offshore energy infrastructure in seabed environments.
Environmental & Water Management
- Water Storage Dams & Spillways: Reinforces vulnerable sections and counters erosion—especially in high-velocity flows.
- Sand Nourishment & Beach Restoration: Retains replenished sand, accelerates natural recovery, and delays erosion progression.
- Wetlands & Estuaries: Offers passive shoreline panels that promote plant growth and protect delicate ecosystems.
- Contaminant Filtration: Integrates with PFAS “Water-Restore ECO Velocity Bags” to passively remove up to 99% of pollutants from waterways.
Emergency Response & Rapid Deployment
- Flood Damage & Landslip Recovery: Installable by small crews to quickly stabilise banks and infrastructure.
- Storm, Cyclone, & Earthquake Relief: Instant protection for damaged sites when conventional build-outs aren’t viable.
Why Rock Bag Filter Units Stand Out
- Fast & Flexible Deployment: Prefilled units pop into place with the Self-Autonomous Hook™, reshaping to fit complex contours with ease.
- Proven Durability: Constructed with UV- and wear-resistant PE or HDPE synthetics for long-term resilience—even in hostile environments.
- Eco-Conscious Design: Encourage marine life colonization and reduce microplastic release by up to 95% when using HDPE.
- Scalable & Adaptable: Available in 0.5T–12T sizes, fitting everything from localized erosion repairs to large-scale offshore installations.
Filling Method
Rock Bag Filter Units are rapidly filled and simple to install whether it’s above ground or sub-surface. With precise sizes being 1, 2, 4, 6, 8, 10 and 12 Ton the dimensions, volumes and weights can be incorporated into an engineer’s design along with accurate estimation of other items such as rock, labour, crane, transportation etc.
The circular design of our filling jig increases daily output by 30% and maintains the best possible shape for safe lifting, transporting and placement without damage.
A small team can fill 100 bags per day comfortably.
Advanced Fibre Materials
The extensive strength and life expectancy of Rock Bag Filter Units can be attributed to the high-tech netting fibres, manufactured in HDPE (High Density Poly Ethelene).
HDPE netting is designed to withstand harsh marine environments, including exposure to saltwater, UV radiation, and severe weather conditions.
One of the advantages of HDPE marine netting is its high strength-to-weight ratio. It is lightweight and flexible, yet strong and durable, making it ideal for use in marine environments. The netting is also resistant to abrasion, tearing, and chemical degradation, making it long-lasting and reliable.
Overall, HDPE netting is a versatile and practical solution for a wide range of applications, providing strength, durability, and protection in harsh environments.
Rock Bag Filter Units are manufactured under strict quality control measures in conjunction with regular laboratory testing for strength, abrasion resistance and UV stability proving they are safe, reliable and offer industry leading quality and life expectancy out in the field.