Gabion Mesh Bags, also known as gabion sacks, are corrosion-resistant structures made from heavily galvanized steel wire or PVC-coated steel wire using woven or welded mesh. Easy to fill, handle, and lift, they are suitable for hydraulic engineering and emergency flood control, providing immediate foundation reinforcement and protection for riverbeds, seawalls, and bridge piers in underwater or fast-flowing environments.
Product Features
Flexible Bag Body
The bag body can bend to conform to steep slopes or uneven ground with a gradient ≤1:0.5, with a gap of ≤5cm between the bag and the terrain after filling.
Filling Port Design
Opening diameter ≥30cm, facilitating direct feeding by forklifts or manual labor, increasing filling speed by approximately 30%.
Binding System
Uses Φ3.0mm galvanized binding wire or metal fasteners, with a single-point tensile strength ≥500N, and overall slippage ≤2cm after bag connection.
Application Areas
Fine River Protection
Embankment reinforcement, ditch lining, small groynes
01
Slope Ecological Restoration
Steep slope netting and vegetation, soil and water conservation
02
Emergency Rescue Engineering
Rapid breach closure, construction of temporary flood walls
03
Landscape and Municipal Facilities
Small ecological retaining walls, rainwater garden structural layers
04
Temporary Mine Protection
Temporary coverage of stockpiles, construction drainage ditch lining
05
Technical Support
For Gabion Net Bag products, we provide the following specific technical support from design to selection:
Design Assistance
Based on the measured slope, determine the bag body length and width combination, output CAD layout drawings, and indicate connection point spacing ≤30cm.
Selection Guide
When the flow rate is ≤3m/s, use 2.2mm wire diameter + 80×100mm mesh; in corrosive environments, specify Galfan + plastic coating, and provide a salt spray test report ≥2000h.
Construction Support
Bind the bags every 25cm, using Φ3.0mm galvanized wire for cross binding; we will provide a 30-second installation video and remote video guidance for sealing.
Validation Service
We can provide sample filling test videos, assist in calculating material usage and single bag weight to ensure the feasibility of the solution.
Installation Method
Site Preparation
Clear sharp objects from the laying area and level the foundation. If the foundation is soft, first lay a 100mm thick gravel layer and compact it.
01
Unfolding the Mesh Bag
Unfold the folded mesh bag and check for any damage. Place it with the filling port facing upwards or towards the outside of the slope.
02
Filling with Stone
Fill the bags with boulders or pebbles manually or using small machinery. The stone size should be 1.5 times larger than the mesh size (e.g., 100mm mesh with ≥150mm stones). Fill to 90%-95% of the bag's capacity, leaving a small margin for sealing.
03
Sealing
Fold the mesh at the filling opening in half and secure it along the edge of the opening with galvanized wire (Φ2.2-2.7mm) or metal fasteners. The binding spacing should be ≤200mm to ensure no stone leakage.
04
Connecting and Stacking
When stacking multiple layers, stagger the seams of the upper and lower layers of mesh bags. Connect adjacent bags with binding wire in a crisscross pattern, at least three times per meter. To form a continuous retaining wall, geogrid can be laid between layers for reinforcement.
05
After-Sales Service
01
Lifetime Digital Asset Management
A dedicated cloud archive is created for each project, permanently storing product data, 3D models, and construction records, supporting retrieval at any time for expansion, maintenance, and ESG reporting.
02
Global Emergency Response Network
Relying on a project network in 30 countries, local technical support is coordinated within 48 hours; a priority channel is activated for emergency needs, and urgent orders are delivered to major global ports within 7 days.
03
Green Circular Value-Added Solutions
Provides recycling and remanufacturing services for old mesh bags and issues carbon reduction reports, transforming waste materials into customer ESG assets. Performance guarantees for core indicators can be provided for projects in extreme environments.
FAQ
Q: What are the main differences between gabion mesh bags and traditional gabion mesh boxes?
A: The core difference lies in the form and construction method. Mesh bags have a bag-like structure, can be manually laid and adapt to complex terrain, making construction more flexible and faster; mesh boxes are rigid modular boxes that require mechanical assistance for assembly and are suitable for large-scale standardized projects.
Q: Can the mesh bags be directly filled with soil and grass seeds?
A: Yes, this is one of its core ecological applications. After filling with vegetative substrate (soil, grass seeds, and nutrient mixture), the mesh bags can immediately stabilize the soil and prevent erosion, while also providing a growth medium for plants, achieving simultaneous engineering protection and ecological restoration, especially suitable for steep slope revegetation.
Q: Can it be used in heavily polluted sites?
A: Yes, but special materials must be used. For chemically contaminated sites, a specialized coating or polymer coating must be selected based on the corrosive medium. Ordinary galvanized materials are not suitable.
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