Saturday, July 9, 2011

Rockfall netting

Rockfall netting
Wire dia.: 2.7mm or 3.0mm
Mesh size:80x100mm or 80x120mm
Netting size :2x25,50m
Zinc-coating:260g/m2
The
Rockfall netting
is used to prevent rocks and debris from falling. Protection can be passive or active.
- Passive where the
hexagonal wire mesh
is designed for controlling detached pieces of rocks and for their regulation to protect people and buildings under the slope.
- Active where different kinds of steel wire and steel cables form an armoured mesh which is then anchored to the rock slope to prevent loosening and falling of rocks.

APPLICATION AREAS:
Covering of rock walls passive systems (Double twisted wire mesh)
There are several types of meshes with a different strength and rigidity.
HEXAGONAL DOUBLE TWISTED WIRE MESH
A double twisted
hexagonal wire mesh
with a mesh type 6x8 or 8x10. Wire diameter 2,2; 2,7 or 3,0 mm in three possible coatings - heavy zinc coating, galfan or galfan + Plastic coating.
1.
Standard parameters
Mesh type
D
(mm)
Ø
wire mesh (mm)
Ø
edge wire
(mm)
Roll Length (m)
Roll Width (m)
6 / 8
60
2,2 - 2,7
2,7 - 3,4
25, 50, 100
1, 2, 3, 4
8 / 10
80
2,7 - 3,0
3,4 - 3,9
25, 50, 100
1, 2, 3, 4
2.
Tolerance and the amount of Surface protection
Ø wire
2,0
2,2
2,4
2,7
3,0
3,4
3,9
Diameter tolerance (±mm)
0,5
0,6
0,6
0,6
0,7
0,7
0,7
Min.amount of Surface protection (g/m
2
)
215
230
230
245
255
265
275

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