Drainage Geonet
Date:2014-04-30   Viewers:   Size: 16px  14px  12px

triple drainage net   drainage net

GTM Tri-Planar Drainage Geonets are drainage geosynthetics manufactured from high density polyethylene (HDPE) resin. Drainage geonets are designed to transmit fluids and gasses uniformly under many field conditions.

Geonets usually heat-bonded with a nonwoven needle-punched geotextile, and are designed to provide drainage, filtration to keep silt and soil particles from clogging the flow or to increase the friction characteristics.

Features
1) Excellent drainage function.
2) High tensile and shear strength
3) Anti-clogging
4) Multi-purpose
5) High pressure resistance

Typical Applications:
1. Landfill drainage;
2. Roadbed and road drainage;
3. Railway drainage;
4. Tunnel drainage,
5. Underground structure drainage,
6. Retaining wall drainage;
7. Gardens,green roof and sports ground drainage

Technical Parameter:

 

No.

Project

Units

Standard value

1200g

1400g

1600g

1800g

2000g

1

Complex mass per unit area

g/m2

≥1200

≥1400

≥1600

≥1800

≥2000

2

Media thickness

mm

≥6.0

≥7.0

≥8.0

≥9.0

≥10.0

3

Composite longitudinal tensile strength

KN/m

≥16.0

≥16.0

≥16.0

≥16.0

≥16.0

4

Complex hydraulic conductivity

m2/s

≥1.2×10-4

≥1.2×10-4

≥1.2×10-4

≥1.2×10-4

≥1.2×10-4

5

Network core and non-woven peel strength

KN/m

≥0.3

≥0.3

≥0.3

≥0.3

≥0.3

6

Net core thickness

mm

≥5.0

≥5.0

≥6.0

≥7.0

≥8.0

7

The tensile strength of the core network

KN/m

≥13.0

≥15.0

≥15.0

≥15.0

≥15.0

8

Non-woven mass per unit area

g/m2

≥200

≥200

≥200

≥200

≥200

9

Non-woven normal permeability

cm/s

≥0.3

≥0.3

≥0.3

≥0.3

≥0.3

10

Width

m

2.1

2.1

2.1

2.1

2.1

11

Roll length

m

30

30

30

30

30

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