Gabion is a flexible protective structure used in hydraulic engineering.Woven from low-carbon steel wires into a double twisted hexagonal metal wire mesh box filled with stones, mainly used for erosion control, riverbank protection, and ecological restoration.
Core Features and Structure
The core advantages of the Gobin cage lie in its flexible design and ecological compatibility:
- Material and Process: Utilizing low-carbon steel wire with tensile strength of 350-550N/mm², treated with hot-dipped galvanized, Galfan coating, or plastic coating to ensure durability; mesh size typically ranges from 60×80mm to 120×150mm, mesh box height from 0.15m to 1.5m, with customizable production available.
- Structural Features: The double-twisted hexagonal weave design provides the net box with excellent deformation adaptability, capable of cushioning water flow impact. After being filled with stones, it forms a porous structure with good permeability, preventing static water pressure damage. Additionally, the gaps between the stones facilitate soil and water exchange and vegetation growth.
Application Scenarios and Advantages
The gabion baskets are widely used in hydraulic engineering, balancing protection and ecological benefits.
1. Main Application:
River and Embankment Protection: Effectively prevents erosion of riverbanks by water flow, with erosion-resistant velocity up to 6m/s, suitable for mountainous swift rivers or urban flood control projects.
Ecological Restoration: The porous structure promotes the rooting of aquatic plants and the habitat for organisms, achieving a dual effect of "engineering protection + ecological restoration," as demonstrated in the Hangzhou Landscape River case.
2. Comprehensive Advantages:
Easy Construction: Supports folding for transportation and rapid assembly on-site. Can utilize local stone directly, reducing costs and time.
Economic: Lower cost than concrete structures, with reduced foundation treatment requirements, particularly suitable for poor soil areas.
Specs and Selection Guide
The specifications of the gabion baskets should be selected according to the engineering requirements.
- Standard Specifications: Wire diameter 2-4mm, edge wire diameter 0.5-1.0mm thicker than mesh; mesh box sizes such as 2m x 1m x 1m or customized design.
- Surface Treatment: Hot-dip galvanized for general environments; galvanized Galfan or plastic coating for enhanced corrosion resistance, suitable for highly corrosive water bodies.
