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Bridge approach protected by Reno mattresses
Envirologs and soil bioengineering bank protection
Green gabions and soil bioengineering bank protection
MacMat R high performance TRM bank protection
Installing Waterlogs for erosion control |
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Hydraulic and Erosion Control - Bank
Protection
A bank protection application is one in which an erosion
control system is used to protect the banks of a channel or
river. When a channel is completely lined from one bank to
the other this is known as ‘channel lining’.
In addition to the Maccaferri applications listed under ‘channel
lining’, we also offer the following Bank Protection
Solutions;
- Gabions - For very high shear resistance long
term applications
- Used to form retaining structures, revetments
and erosion control systems. Gabions are ideal
solutions for river training works, bridge abutments,
wing walls etc
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- Envirologs™ - For high shear resistance
- This is a small cylindrical gabion lined with
a biodegradable blanket and filled with stone
and topsoil. EnvirologsTM provide immediate erosion
protection, and are designed to enhance vegetation.
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- Green Gabions™ - For high shear resistance
- This is a gabion unit with a sloped face, and
lined with a biodegradable blanket. Green GabionsTM
provide immediate erosion protection, and are
designed to enhance vegetation.
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- Waterlogs™ - For low energy streams
- This is a roll of coir fiber, bound together
with woven coir netting. They provide immediate
erosion control and a stable medium for vegetation
establishment. WaterlogsTM can be pre-planted
to offer immediate vegetation.
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Detailed information on the above can be found in the ‘download
area’.
These solutions can be used in a multitude of bank protection
applications including;
- Bridge abutments
- Bridge piers
- River training works
- Bank stabilization
Where the channel bank is unstable, a retaining structure
may be required. Gabions form ideal retaining structure /
bank protection solutions. They are flexible, permeable, and
offer excellent erosion protection.
Slope (Vert:Horiz) |
Solution |
1:2 |
Sloped Surface Protection |
1:1 |
Stepped Revetment |
>1:1 |
Retaining Structure |
The table is for guidance only, and slope stability analyses
should always be carried out when the slope angle is greater
than the natural friction angle of the soil.
Where permeable solutions, such as gabions and Reno mattresses
are used in water courses, it is good practice to construct
them upon a geotextile. The geotextile will limit the washout
of fine soils from the in-situ material behind and beneath
the installation.
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