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Where applicable
Shallow and steep embankments of road and railways, strategic roads
and irrigation bunds,
lakes, ponds and beautification programmes
of any kind of slope
Cuts slopes, naturally degraded slopes, road abutting cliff faces and
hill slopes
Bridge approaches, viaduct and abutments
Manmade slopes adjoining dams, weirs reservoir.
Slope conservation of forest, denuded hill slopes.
Sand dunes on sea shores.
Why applied
Erosion is one of the main reasons of slope failure and is a natural
process if not protective measures are taken in time. Erosion is a phenomenon
of detachment of soil particles by raindrop and subsequent transportation
by run-off and wind washing out the seeds, soil and nutrients on the
slopes with scanty vegetation. Jute nets are used to arrest movement
of detached soil particles, seeds and nutrients. The net provides innumerable
miniature check dams, absorbs water and resists surface run-off thereby
reducing erosion potential. After the first rainy season the seeds germinate
and vegetation soon envelopes the entire surface thus protecting the
slope permanently.
Jute nets have been observed to have a life of about 2 years on soil surface, which is sufficient for promoting full growth of vegetative
cover over a denuded slope. Once vegetation is established its root
system anchors the soil increasing shear strength and the mission is
accomplished for the jute net. Jute nets when decomposed adds nutrients
to the soil
Product specification
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Packing – Bales of desired length subject to maximum 1400
m of light type, 800 m of regular type and 550 m of heavy type.
How to apply
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1. |
The surface should be made as
smooth as possible and free from lumps, tree trunks etc.
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2. |
Ditches on the slope may be
filled with soil and compacted by light ramming.
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3. |
For anchorage of the fabrics
trenches of size 15cm * 15cm may be made at the top, bottom
and sides of the slope.
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4. |
After anchoring one end of a
fabric at the top, it may be rolled down up to the trench
at the bottom of the slope.
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5. |
Cut the fabric with sufficient
length to anchor it at the bottom and anchor the bottom and
side of the fabric in the trenches made for that.
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6. |
Lift the fabric to the trench
at the top and anchor it with a over lapping with the
previously laid fabric as shown in the plan below and repeat the processes 4, 5 & 6 till
the site is covered with fabrics.
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7. |
Anchor the fabrics in the trench
on the other side of the site made for the purpose.
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8. |
In the process ends of two fabrics
are to be overlapped in the
direction of flow of water as shown in the plan.
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9. |
Over lapping should be fixed with the ground
following the method shown in the plan. For the purpose
wooden/iron pegs of suitable size and shape as shown in
the plan may be used.
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10. |
The treated area is now ready
for vegetation and for the purpose seeds of suitable grass,
bush, shrubs as well as saplings of plants may be planted
through the holes of the fabrics. The vegetation species should
be so selected that they can thrive in the climatic condition
of the site.
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11. |
In case of scanty rainfall arrangement
for irrigation should be made for quick
germination and growth of the plants. The arrangement should
continue at least for a year so that the vegetation can take
firm root in the soil. During the period the site should also
be protected from grazing of cattle and human activities jeopardizing
the growth of the plants.
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