What is a geotextile bag?

What is a geotextile bag?

Geotextile bags are large bag-shaped containers made from high-strength geosynthetic materials (typically specialized geotextiles). 

They are filled with sand, silt, clay, or other engineering materials and used in civil engineering, hydraulic engineering, and environmental engineering for reinforcement, protection, cofferdams, erosion control, and similar applications.

Bag Body Material

Material: Typically made from high-strength synthetic fibers such as polypropylene (PP) or polyester (PET).

Processing: Primarily woven geotextiles, offering high tensile strength, puncture resistance, UV resistance, and corrosion resistance.

Key Feature: Permeability. 

The fabric incorporates precisely engineered pores that allow water to permeate while effectively retaining solid particles. 

This “filtering” function is its core principle.

Filling Material

Typically sourced locally using on-site silt, mud, clay, sandy soil, etc. Specific concrete or soil mixtures may be used as required by project specifications.

Cost is extremely low, as the primary fill consists of locally sourced materials requiring disposal.

Shape and Size

Dimensions are highly flexible, ranging from small, pillow-sized geotextile bags for slope protection to massive geotube structures. 

The latter can reach diameters of several meters and lengths of tens of meters, with individual volumes exceeding thousands of cubic meters.

Colors:

Customized, usually green, white, and others

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