Protective mesh and rockfall netting — securing cliffs, slopes and natural hazards
Pinned mesh, draped mesh and rockfall nets: protection against falling rocks on slopes and cliffs.
Protective mesh retains or guides stones that break away from a slope or cliff above a road, a house or a path. It is installed on ropes, without plant, after unstable blocks have been scaled.
Retaining or guiding falling rocks
What is protective mesh installation on difficult-access sites?
Pinned mesh is laid against the face and held by anchors spread over its surface: it keeps stones and small blocks in place. Hanging (draped) mesh is fixed at the top only: it guides falling rocks down to the foot of the slope, where they are collected. Cable nets, which are stronger, contain larger blocks.
The mesh is galvanised double-twist steel, reinforced with cables. Installation starts with scaling the unstable material, then drilling the anchors at the top and across the face. The system is chosen according to block size, fall height and what is at risk below.
Choosing the system
It depends on block size, fall height and what is at risk below.
Pinned mesh
Anchored over the whole surface: keeps stones and small blocks in place.
Hanging mesh
Fixed at the top: guides falling rocks down to the foot, where they are cleared.
Cable nets
Steel cable panels for larger blocks.
Prior scaling
Unstable blocks are brought down before installation.
Anchors
Bars drilled and grouted at the top of the face and across it.
Installation on ropes
No plant, on faces that platforms cannot reach.
Our expertise
Know-how in special works
We install protective mesh and nets on slopes and cliffs, from scaling to anchors, by rope access.
- Installation of protective and securing mesh
- Rope-access works
- Slope stabilisation
- Securing hazard zones
- Difficult-access works
How a Sirianni Travaux project unfolds
Survey
Locating unstable zones, block sizes and what is at risk below.
Choice of system
Pinned mesh, hanging mesh or cable nets; position and length of anchors.
Scaling and anchors
Bringing down unstable material, drilling and grouting the anchors.
Installation and checks
Unrolling, fixing and lacing the panels, then checking that the system holds.
Frequently asked questions
What is the difference between pinned and hanging mesh?
Does the face need scaling before installation?
Does mesh stop large blocks?
Does installation require plant?
Do you also install rockfall nets?
Does mesh need maintenance?
Related services
Rope-access works
Rope access works: scaling, anchors, mesh and shotcrete on rock faces, cliffs and slopes.
ViewGround anchors
Drilled and grouted ground anchors: stabilising retaining walls, excavation walls and slopes.
ViewWork at height
Work at height on rock faces, slopes and structures: scaffolding, aerial platform or ropes.
ViewA consolidation or foundation project?
Call or write to us: every situation is reviewed by our team before any proposal, for a genuinely suitable answer.