Rockfall protection and mitigation are key elements in the security and safety of people and our infrastructure: roads, rail, mines and buildings. Maccaferri can help to mitigate and reduce natural hazards: for that we work with our clients to engineer a solution from our broad range of systems, often using them in combination. Learn more.

1. Date: February 2017
ROCKFALL PROTECTION
& NATURAL HAZARD MITIGATION

2. Rockfall protection
and mitigation
are key elements
in the security
and safety
of people and our
infrastructure: roads,
rail, mines and
buildings.

3. We can help to
mitigate and
reduce natural
hazards.

4. Because nature is not consistent…..
…no single solution is right for every problem.

5. We work with our clients to engineer a solution.
We select from our broad range of systems,
often using them in combination.

6. Simple Drapery Mesh
Surface Strengthening
and Support Mesh
Dynamic Rockfall
Barriers
Our solutions:
Our solutions:

7. Debris Flow Barriers
Rockfall Embankments
Snow Fences and
Avalanche Protection
Soil Nailing

8. Where are these solutions used?

9. Simple Drapery Mesh
• Double-twist woven steel mesh
• Heavy zinc-aluminium galvanised
with polymer coating for long
design life
• Easy to unroll on rock-face
• DT mesh construction will not
unravel and maintains 85% of its
strength even when one wire is
broken
Simple drapery mesh

10. • High strength, high stiffness steel
mesh geocomposite
• DT Mesh with integral high tensile
steel cables
• Tensile strength up to 180 kN/m
• Punch resistance up to 150 kN
• Zn-Al heavy galvanised with
optional polymer coating
Steelgrid HR
Surface Strengthening
& Support Mesh

11. • High tensile steel wire cable panel
• Highest stiffness mesh in range
• Tensile strength up to 300 kN/m
• Punch resistance up to 460 kN
• Patented ‘double knot’ connection
HEA Panels
Surface Strengthening
& Support Mesh

12. • Range of fences with energy
absorption capacities
from 100kj to 8,600kJ
• Fences certified in accordance with
International standards
(e.g. ETAG 027)
• Lowest deflection under impact
• Class A
• Patented compression brakes
Dynamic Rockfall Barriers

13. Soil Nailing
• Reinforces the slope
by the insertion of soil nails
• Connects the unstable surficial
layers with the stable deep slope
• Variety of surface
stabilising meshes
• This technique provides stability
while vegetation
becomes established
Soil Nailing

14. • Customised to suit
the anticipated debris material
and the expected flow volume
• Barrier progressively deforms
with the compression brakes
and systems absorbing the energy
• Offers strength and performance
with good aesthetics
Debris Flow Barriers

15. • Built using reinforced soil;
can often use locally available
site-won materials
• A variety of face finishes
are available
• Scalable to accommodate
extreme rockfall impacts
(20,000kJ +) and divert debris flow
• Can sustain multiple impacts
and rockfall events
without the need for repair
Rockfall Embankments

16. • Stabilises the layer of snow
at the potential
avalanche initiation zone
• Flexible system: reduces loads
imposed on foundations
= more efficient
• SFISAR Approval
for our snow fences
up to 4.5 m high
Snow Fences
& Avalanche Protection

17. TECHNICAL
KNOW-HOW
PROJECT SITE
SUPPORT
LONG-LASTING
SOLUTIONS
DEEP
EXPERIENCE
DESIGN &
SOFTWARE
60YEARS
We deliver:

18. TIME SAVING
COST SAVING
REDUCED RISK
TRIED & TESTED SOLUTIONS
Client benefits:

19. Thank You.
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All dimensions and specifications subject to change without notice.
Please consult your local Maccaferri website for the latest technical specifications.