Difficult-access works

Soil nailing works — nailed walls & ground retaining

Specialists in soil nailing and slope stabilisation — for private and professional clients, even on difficult-access sites.

Soil nailing works, also known as nailed walls, are a benchmark solution for ground retaining, slope stabilisation and securing existing structures. At Sirianni Travaux, we work on complex projects that call for sharp expertise in special foundations, underpinning and difficult-access works.

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Strengthening a soil mass with nails working in tension

What is soil nailing or a nailed wall?

Soil nailing is a soil strengthening technique that reinforces a soil mass by inserting steel bars (nails), sealed into the ground and working in tension. These nails are combined with a facing, usually in shotcrete, to create a nailed wall capable of retaining the soil and ensuring the stability of the structure.

This technique is particularly used for retaining sloping ground, stabilising slopes, securing excavations, projects in constrained urban settings and zones with difficult or restricted access.

Why choose soil nailing for ground retaining?

Soil nailing offers many advantages over traditional retaining solutions.

A solution adaptable to all types of ground

Soil nailing suits heterogeneous, rocky or loose ground, without the need for massive foundations.

Limited impact on the existing surroundings

Ideal in built-up areas or close to existing structures, soil nailing limits vibration and heavy earthworks.

Phased, safe execution

The technique allows work in phases, keeping the ground stable throughout.

An ideal answer to difficult access

Combined with rope-access works, soil nailing makes it possible to work where conventional plant cannot reach.

Expertise in special works

Every soil nailing site is studied to suit the ground, the slope and the site constraints.

A durable, clean solution

The facing, often in shotcrete, protects the wall and stabilises the ground with a controlled footprint.

Our expertise

Know-how in special works

Sirianni Travaux specialises in special building works and takes on projects that call for full mastery of the technical constraints.

Our key skills

Soil nailing and nailed walls
Soil strengthening & retaining
Special foundations
Micropiles
Underpinning

How a Sirianni Travaux project unfolds

Analysis of the ground and site constraints

Geotechnical survey, topography, access, existing surroundings.

Design of the retaining solution

Sizing of the nails, choice of facing, method of intervention.

Carrying out the nailing works

Drilling, installation of the nails, grouting, shotcrete.

Final checks and securing

Verification of the stability and compliance with the technical requirements.

Frequently asked questions

What is a nailed wall for?

A nailed wall retains the soil and provides retaining for sloping ground, slope stabilisation or securing excavations.

Is soil nailing suited to urban areas?

Yes. Soil nailing limits vibration and earthworks, which makes it ideal close to existing structures.

Can ground be nailed on a difficult-access site?

Yes. Combined with rope-access works, soil nailing makes it possible to work where conventional plant cannot reach.

Is soil nailing combined with shotcrete?

Very often. The shotcrete forms the facing of the nailed wall and durably protects the structure.

Is a nailed wall durable?

When correctly designed and carried out, it provides a reliable, durable solution.

A consolidation or foundation project?

Get a tailored assessment for your special works. Tell us about your disorder or your project — we will get back to you after analysing the structure and its surroundings.

Phone06 59 90 51 91 Emailcontact@sirianni-travaux.fr

Address113 Allée des Cigales, 06700 Saint-Laurent-du-Var