Knitted geotextiles

Knitted geotextiles. These are produced by interlocking a series of loops of filaments or yams to form a planar stmcture. The loops in the knitted stmcture are interlocked in different ways, similar to weave designs in woven fabrics. 

Slope reinforcement is also employed in the construction of embankments, and as an alternative to some retaining walls. To provide slope stability, multiple layers of geogrids, or woven/knitted geotextiles, may be placed during construction in the fill material used to make the slope. 

Knitted geotextiles are produced by mechanically interlooping yams or monofilaments. 

Woven Geotextiles Nonwoven Geotextiles Knitted Geotextiles SUtch-bonded Combination... 

The evenness of knitted geotextile makes it possible to control openings perfectly, as well as the ability to obtain very fine openings that are ideal for filtration of sandy or silty soils. The ability to stretch and the round form that can be obtained by certain knitting procedures make this product an economical solution for use around perforated drainage pipes. 

Figure 3.9 Knitted geotextile manufacturing process flowchart.

Figure 7.3 Wide-width tensile test on a knitted geotextile using capstan clamps. Courtesy SKZ.

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