Rock anchor Ø12 mm

The Ø12 mm rock anchor is an L-shaped steel anchor, 125 cm long, designed for fixing gabions, geocells, geogrids and erosion control mesh where ordinary pegs are not enough: in rocky, stony and heavily compacted ground. The long shaft reaches deep into the base, while the 15 cm bent end hooks the structure and stops it from shifting.

Why an L-shaped rock anchor

On rocky ground the topsoil is often thin and cannot hold a structure by itself. The anchor passes through it and is fixed in the solid rock below. The L shape works like a hook: the straight shaft takes the load along its length, and the bent end presses the mesh, panel or cell against the base. The structure does not slide down the slope or lift under pressure from water, soil or wind.

The Ø12 mm diameter is a good balance between strength and easy installation. It suits most projects: gabion fences and medium-height retaining walls, geocells on slopes and fixing geogrids.

The flat (blunt) end is suited to installation in a pre-drilled hole in rock, fixed with mortar, cement or epoxy anchoring compound. The blunt end sits firmly at the bottom of the hole.

Technical specifications

Applications

• Fixing gabions and gabion retaining walls to a rock base
• Securing geocells on slopes and inclined ground
• Fixing geogrids, erosion control mesh and mats
• Stabilising rock slopes, road cuttings and embankments
• Protection of riverbanks, ravines and water areas
• Mountain roads, paths and sites on stony ground

Installation

1. Layout. Mark the anchor positions according to the project. On slopes anchors are usually placed more densely at the top and along the edges of the structure.
2. Drilling. In rock, drill a hole slightly larger than Ø12 mm and deep enough to take most of the anchor shaft.
3. Placing. Clean the hole of dust and insert the anchor so that the bent end hooks the mesh, cell or gabion wire.
4. Fixing. If needed, fill the hole with cement mortar or anchoring compound for maximum hold.
5. Check. Make sure the structure is tensioned, lies against the base and has no loose sections.

How to choose

• Ø12 or Ø14 mm. Ø12 mm is enough for most gabion and geocell structures. Choose Ø14 mm for tall walls, steep slopes and strong water flow.
• Flat or pointed tip. The flat tip is for drilled holes fixed with mortar. The pointed tip is for driving into hard and stony ground and faster installation.
• Number of anchors. Depends on the area, slope and type of structure. Send us the dimensions and a photo of the site and we will calculate the quantity.

Frequently asked questions

Can the anchor be used in ordinary soil?

Yes, but for soft soil the thinner anchors in the Fixing elements category are more cost-effective. The rock anchor is made for hard and rocky ground, where more length and strength are needed.

Do I always need to drill a hole?

In solid rock, yes. The flat-tip anchor is meant for installation in a drilled hole. If you want to drive it in directly, choose the pointed-tip version.

Do you sell per piece?

Yes, the anchors are sold per piece. For larger quantities and projects we will prepare an individual quote.

Why Smart Metal Group

Smart Metal Group is a Bulgarian supplier of metals, fencing systems, gabions, geosynthetics and building materials. We keep stock in our warehouse, advise on choosing anchors and calculating quantities, and deliver to your site anywhere in Bulgaria.

For advice and a quote: +359 884 660 030 or sales@smartmetalgroup.com.