The flexible ring net barrier is a passive protection system consisting of a series of linked rings that form an extremely strong network to protect areas below slopes from falling rocks, landslides, debris flow, and avalanches.
Flexible Ring Net Barriers - Tecco Mesh or Hexagonal Wire Mesh Combination
The Flexible Ring Net Barriers are comprised of steel ring nets and Tecco mesh. Often, the steel wire ring net can be used with hexagonal wire mesh. The ring links are made from high tensile strength steel wire. The rings are interlocked to supply high bearing and load capacity. Each ring is connected with four or six contiguous rings in order to create a stable and solid ring net. The steel ring netting is considerably more flexible than the steel rope net.
ZDRN-01: Four contiguous ring-type steel wire ring net.
ZDRN-02: Six contiguous ring-type steel wire ring net.
Component
Tecco mesh
tecco mesh is made of high tensile steel wire (1770Mpa) to bear the high impact from stones, debris or snow. The wire diameter will be 2.0mm 3.0mm 4.0mm and the specifications are commonly G65/3 G65/4 G80/4 G45/2.
Hexagonal wire mesh
It is an alternative to the chain-link fencing. The hexagonal wire mesh can also be used in combination with a steel ring net to block smaller stones or soil on sloped surfaces.
Steel ring net
Steel ring net is made of high tensile steel wire and the wires are looped into circles. The circles will connect with each other to form a steel ring net. The steel ring net has a high load capacity and is more flexible than steel rope net.
Decompression ring
The decompression ring is placed along with the steel wire ring net. It can reduce the pressure of the steel wire ring net. The decompression ring is made of hot-dipped galvanized metal, which has outstanding corrosion and rust resistance.
Supporting rope
Supporting rope is mainly used for supporting the wire rope and decompression ring. It is made of stainless-steel wire ropes with high tensile strength to bear large loads.
Steel column
The steel column is an H type post. It is installed onto the foundation base to support the steel wire ring net. The steel column is corrosion and rust resistant to withstand harsh environments. Additionally, the steel column is high tensile strength to support the steel ring net. The arrangement of the steel column is based on the terrain and usage environments.
Foundation base
The foundation base is used for fastening the steel column onto the ground. The foundation base is hot dipped galvanized to resist corrosion and rust.
Specifications of Flexible Ring Net Barriers
Steel ring net wire diameter: 3 mm.
Steel ring net ring diameter: 300 mm or 350 mm.
Tecco mesh wire diameters: 2 mm - 3 mm - 4mm.
Tecco mesh specifications: G65/3 G65/4 G80/4 G45/2.
Types of Steel ring net for Flexible Ring Net Barriers
Ring net type
RXI-025
RXI-050
RXI-075
RXI-100
RXI-150
RXI-200
RXI-300
Energy absorption capacity (kJ)
250
500
750
1000
1500
2000
3000
Ring net type
R5/3/300
R7/3/300
R7/3/300
R9/3/300
R12/3/300
R16/3/300
R16/3/300
Strands of wire
5
7
7
9
12
16
16
Wire diameter (mm)
3
3
3
3
3
3
3
Ring diameter (mm)
300
350/300
350/300
350/300
300
350/300
300
Rope diameter (mm)
16 - 18
18 - 22
14 - 16
16 - 18
18 - 20
18 - 22
22
Distance between posts (m)
8 - 12
8 - 12
8 - 12
8 - 12
8 - 12
8 - 12
8 - 12
Min./max. Barrier height (m)
3/6
4/7.5
4/7.5
5/9
6/10.5
5/9
6/10.5
Max. Deflection distance (m)
4.36
5.8
< 7
8.15
8.45
8.15
8.45
Usable height remaining in impact section
>50% (Cat.A)
>50% (Cat.A)
>50% (Cat.A)
>50% (Cat.A)
>50% (Cat.A)
>50% (Cat.A)
>50% (Cat.A)
Features of Flexible Ring Net Barriers
High tensile strength.
More flexible.
High load and absorption capacity.
Quick and easy installation.
Broken parts are easily replaced.
Corrosion resistance.
Applications of Flexible Ring Net Barriers
The Flexible Ring Net Barriers is mainly used for retaining unstable slopes controlling and preventing rockfalls and loose debris flow along roads, highways and railway, urban areas, mines, and quarries.
The Flexible Ring Net Barriers also can be used for snow avalanche protection produced from metallic-coated steel wire or advanced metallic coating.
