Erosion control- River banks

On the river banks prefilled erosion control mats could be used. The mats may be filled with bitumen bound stone chippings, gravel or etc,.

• prefilled mats
• Selecting wider witdhs may be better (5 m wide) (depends on the project)
• vegetation can grow through
• permanent protection

Erosion control - Slopes

Erosion control mat on slopes:

• prevent seeds washed away
• reinforces root system
• repair of heavily eroded areas

How does erosion control mat function?

Geosynthetic erosion control mats help 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

Geosynthetics erosion mats-Fields of applications

Fields of application of erosion control geosynthetic mats

• erosion prevention for embankments and slopes
• protection of riverbanks against erosion
• support of vegetation on steep slopes and geomembranes

3D-Mat for erosion control

As seen on the picture above 3D mat is a three dimensional, structured, olive green (darker than the picture, you can see the speedlight lights) erosion control mat manufactured from polypropylene monofilaments.

It is easy the installation slopes upto 60 degrees. Covered with soil after seeding. Provides instant protection against soil erosion due to wind, rain, and flash flooding. Creates an artificial root system. Helps nature.

These type of erosion control products can be used for erosion protection of steep slopes, embankments, riverbanks, lakesides, shorelines, spillways, canals, and ditches. Also highly effective on golf courses and residential lawn areas.

Synthetics in erosion kontrol

How does a three dimensional synthetic mat function?

A geosynthetic erosion control 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
  
  The protection improves in time with the establishment of vegetation; this may be the
  unique aspect of the synthetic erosion control system

decorative ponds

Decorative ponds for houses or even bigger ones like lakes are widely used by landscaping architects.

If you construct a pond on the side slopes you sometimes put some small sized gravel and some plants.

The plants and gravel or soil sometimes slide down to bottom of the pond.

3 dimensional geosynthetic mats for erosion control or 3D mat type green slope materials may help for this purpose.

On the membrane you can cover with a protection (nonwoven geotextile) and use mat.

These mats can also be used in fish ponds.
For the noise reduction property of the mats please check fountain section.

How can we control erosion?

In nature it often takes thousands of years till erosion has stopped and a gradual building up of a natural, vegetal cover has taken place.
Mankind can make artificial protection with concrete, stone, wood, etc. or help nature to establish a natural cover.

Also it is possible to use prefabricated plastic erosion control products. Three-dimensional erosion control mattings, made of polyamide monofilaments welded together where they cross, with an open space of over 95%.

What is Erosion and why erosion control?

What is erosion?

Erosion is displacement of solids (soil, mud, rock and other particles) by the agents of ocean currents, wind, water, or ice by downward or down-slope movement in response to gravity or by living organisms (in the case of bioerosion). see http://www.wikipedia.org/

Why erosion control?

2 reasons

• during the erosion process soil particles are transported, resulting in the gradual deformation and destruction of slopes, banks, shores, rivers bottoms, etc.


• elsewhere, erosion causes undesirable sedimentation on agricultural land and roads, in rivers and drainage systems, etc.

Erosion control with honeycomb structures

Honeycomb structured erosion control products has been specially designed for use on sub-bases which do not generally allow the growth of vegetation due to their geological properties. Slag heaps and rocky slopes are examples of this kind of sub-base, upon which a 10 cm thick layer of soil can be applied into the product to form the basis for the development of vegetation.
In such cases, the honeycomb structure allows the mat to be filled with topsoil, providing a lasting grip in the cascading geocells. A further major applications are slopes where the topsoil would erode, if no corresponding measures were taken to combat erosion.
These flexible geocell products are generally made of geotextile fabrics connected to each other reciprocally to form a hexagonal honeycomb structure. The resulting cells can be filled with fertile topsoil, sand, flint or gravel, depending on the specific application. The factors of rigidity and permeability are decisive criteria in the selection of the geotextile fabric used for the production. They are taken into account to ensure that the finished product can ideally fulfil the requirements of its specific application.
The number of anchoring pins of is determined by a great variety of parameters
In addition to its functional characteristics, one of the benefits is its high degree of flexibility. The geocells can follow the gradient of the slope without buckling or warping. Furthermore, the lightweight material allows quick and easy installation. The geocells are resistant to rotting and therefore stabilize the covered surfaces permanently, independent of the vegetation that has been chosen.

Green slopes with wire mesh and Enkamat

Enkamat and wiremesh hold soil particals, stones and seeds. The Enkamat functions as a griplayer for hydroseeding.

First Enkamat is installed on the slope and then on it wiremesh.

As the green of the first hydroseeding does not cover the whole area, a second hydroseeding is needed.

Climbing plants have been planted in the toe of the slope. The last picture is taken one year after installation.

Especially near the roads you may have a green beautiful view.

Erosion control

Why erosion control

• during the erosion process soil particles are transported, resulting in the gradual deformation and destruction of slopes, banks, shores, rivers bottoms, etc.
• elsewhere, erosion causes undesirable sedimentation on agricultural land and roads, in rivers and drainage systems, etc.

How can we control erosion?

a)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

b)In case of slopes of ditches/channels:

• revetment structure
• concrete blocks