The Constructor

What is Gabion? Its Types, Applications, and Advantages

what is gabion

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What is gabion?

Gabion is a welded wire cage or box filled with materials such as stone, concrete, sand, or soil. So, gabion is a partially flexible block construction used for slope stability and erosion protection in construction. Various types of gabions are constructed and used in different engineering constructions. Sometimes, live rooting branches may be placed between the rock-filled baskets which improves durability and stability of the gabion. This article presents gabion definition, types, applications, and advantages.

Gabion wire mesh properties

Wire mesh used to manufacture the cage of gabion shall poses certain properties otherwise it might not serve its purpose properly. Table 1 provides the desired properties of gabion wire mesh. Table-1: Gabion wire mesh properties
Raw material Gabion wire mesh properties
Technical properties Unit Descriptions Tolerances
Mesh mm 50x70, 60x80, 80x100, and 100x120 ---
Maximum wire thickness mm 2-5 0.05
Amount of covering gr/m2 30-300 5
Tensile strength MPa 350-2000 2
Elongation (25cm long) --- 10% ---
Zinic coating strength Turns 5 Shall not break or crack

Fig. 1: Wire mesh boxes for gabions

Types of Gabions

There are number of gabion configurations that can be selected based on their cost and function. Common types of Gabion are as follows:

1. Gabion baskets

Fig.2 : Basket gabion

2. Gabion mattresses

Fig. 3: Gabion mattress

3. Gabion sacks

Fig. 4: Gabion sacks

4. Gabion wire mesh

Fig. 5: Gabion wire mesh used to prevent rock fall from highway slopes

5. Decorative Gabion Elements

Fig. 6: Decorative gabion elements

Applications of gabions

Gabions are used in several engineering projects and serve various purposes. common applications of gabions are as follows:

Fig. 7: Gabion retaining wall for road embankment

Fig. 8: Gabion mattresses used for covering channels to prevent erosion

Fig. 9: Use of gabions in landscaping

Fig. 10: Gabions used for aesthetic purpose

Advantages of gabions

1. Durability

Gabion has a very high resistance to atmospheric corrosion because of the well bonded zinc coating on the wire and their ability to support vegetation growth.

2. Flexibility

This feature permits the gabion to settle and deform without failure and loss of efficiency. Specifically, when unstable ground and moving water are encountered.

3. Permeability

It provides automatic and easy drainage which eliminates the need for the installation of drainage pipes.

4. Strength

Gabions are satisfactory strong that is it is capable of resisting flood force, torrential force, and ice and earth pressure.

5. Economical

It is more economical in terms of both material and labor in comparison with other gabion alternatives.

6. Environmentally friendly

Recycled materials can be placed into the gabion cage. The gaps in the soil between filling materials allow the plantation to grow over time. Gabion elements are not affected by natural phenomena.
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