A short slideshow about erosion control of the slopes. Green slopes and landscaping

1. Geosynthetic mats
in
Landscaping and erosion control
www.geosyntheticsworld.com
Page 1 of 11 Landscaping and Erosion Control

2. What is erosion?
Erosion is the removal of solids (sediment, soil,
rock and other particles) in the natural
environment. It usually occurs due to transport by
wind, water, or ice; by down-slope creep of soil
and other material under the force of gravity
http://en.wikipedia.org/wiki/Erosion
www.geosyntheticsworld.com
Page 2 of 11 Landscaping and Erosion Control

3. Erosion – the problem
The problem The solution
www.geosyntheticsworld.com
Page 3 of 11 Landscaping and Erosion Control

4. Why erosion control?
2 reasons
1. during the erosion process soil particles are transported, resulting in
the gradual deformation and destruction of slopes, banks, shores,
rivers bottoms, etc.
2. elsewhere, erosion causes undesirable sedimentation on
agricultural land and roads, in rivers and drainage systems, etc.
www.geosyntheticsworld.com
Page 4 of 11 Landscaping and Erosion Control

5. How can we control erosion?
• Existing slopes:
– prevent removal of the vegetation
– in case of new slopes protect the fertile surface layer by means of:
• coarse, less erodible surface
• flatter slopes / terraces
• surface cover with concrete, stones, plastic sheets
• temporary plastic sheets over surface in rain season
• geosynthetic mats
• biodegradable mats
• In case of slopes of ditches/channels:
– revetment structure
– concrete blocks
– heavy stones
www.geosyntheticsworld.com
Page 5 of 11 Landscaping and Erosion Control

6. What is a geosynthetic mat?
Geosynthetics mat is a three
dimensional erosion control
matting, made of Polyamide
monofilaments welded together
where they cross, with an open
space of over 95%.
For example : Enkamat®
www.geosyntheticsworld.com
Page 6 of 11 Landscaping and Erosion Control

7. How does geosynthetic mat function?
Geosynthetic mat helps nature to establish a natural, vegetation cover,
as it :
• acts as an artificial root-system
• holds soil particles and seeds
• reduces water and wind velocities
• creates a micro-climate and favours germination of seeds
and growth
• reinforces the vegetation cover in the root-zone
www.geosyntheticsworld.com
Page 7 of 11 Landscaping and Erosion Control

8. Fields of application
• erosion prevention for embankments and slopes
• protection of riverbanks against erosion
• support of vegetation on steep slopes and geomembranes
www.geosyntheticsworld.com
Page 8 of 11 Landscaping and Erosion Control

9. Geosynthetic mats - types
There are a lot of types in the market
for different applications.
• flatback, open mat
• reinforced with a woven fabric
• factory filled with bitumen-bound
stone chippings
Ask you landscaping architect, designer or supplier to decide the suitable type
for your area and type of application
www.geosyntheticsworld.com
Page 9 of 11 Landscaping and Erosion Control

10. Installation of a geosynthetics mat - Enkamat
1 2 3
300
200
lay secure overlaps
200
excavate
4 5 6
intermediate
pinning seed topsoil fill
www.geosyntheticsworld.com
Page 10 of 11 Landscaping and Erosion Control

11. The technical data and information set forth in this slideshow reflect
our best knowledge at the time of issue. The slideshow is subject to
changes pursuant to new developments and findings, and a similar
reservation applies to the properties of the products described. We
do not undertake any liability for results by usage of these products
and information. We do not take any responsibilities. This slideshow
is only for general information.
Please check your local conditions, soil, climate, plants and
vegetation properties. Ask the producers of the products and local
landscape architects and suppliers.
Some pictures and information are taken from Colbond bv.
brochures.
www.geosyntheticsworld.com
Page 11 of 11 Landscaping and Erosion Control