Nailed walls: increase the angle of repose of a slope

Nailed walls as sheeting offer the possibility of increasing the natural angle of repose of a slope. We drill nails through the soil’s active shear plane, which prevents slip. A nailed wall can serve as temporary sheeting for a construction pit or as a definitive wall.

How are nailed walls made?

  1. First, we excavate the soil from under the desired slope.
  2. We then install drainage nets against the excavated slope.
  3. We provide a reinforcement net on top of the drainage nets, onto which we apply shotcrete. We use the wet process for this, so that there is no need for silos to be installed on the site. Concrete mixers supply the concrete ready to pour on site. We spray the concrete against the slope using compressed air. This has the additional advantage that there is virtually no rebound.
  4. We drill nails through the shotcrete.
  5. After the nails have hardened, we install an anchor plate against the shotcrete.
  6. If possible, we spray a second layer of shotcrete over the anchor plates.
  7. In certain cases, we might first drill the anchors before installing the reinforcement nets and the shotcrete.

What are the benefits of nailed walls?

  • Building nailed walls is very fast and relatively cheap.
  • The shotcrete guarantees a high degree of flexibility in execution.
  • Execution is possible in situations that are inaccessible to other foundation machinery, such as embankments, slopes etc.
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