On
steep slopes the cover soil should be retained using geosynthetics.
Alternatively,
benching of the slope reduces the friction angle created in
the confining soil.
Filling
the confining soil into the cells of a cellular confinement
support system.
The cellular confinement support system should
be anchored over the RAWMAT® HDB prior to filling.
Once anchored the cellular confinement support
system cells are filled with a minimum of 300mm
cover soil.
With the cellular confinement support system
cells filled and grass established, the RAWMAT® HDB functions
as a effective and stabilised barrier membrane.