All That You Need to Know About Soil Nailing Technique

Written by jessicaolien on 16. October 2018 12:27 o'clock

    

In order to make the soil more stable, lots of reinforcement techniques are used. Soil nailing technique is also one such technique which is used in slopes, retaining walls and excavations etc. in order to make the soil more stable. We shall discuss briefly about this technique.

Following are a few different soil nailing techniques:

  • Drilled and grouted technique

In this type of technique, first on the wall or on the slope face, holes are drilled and thereafter soil nails are put on those holes drilled above. Then the hole is filled with various grouting materials like concrete and shotcrete etc. The nails that are used are having diameter of 100 to 200 mm and they are inserted with a spacing of 1.5m.

  • Driven soil nailing technique

In the soil slopes, this method is used for temporary stabilization of the slope. This method is quite fast but for the nail or steel, it does not provide any protection for corrosion. During excavation the nails are driven on the face of slope. Nail diameters vary within 19 mm to 25 mm and the spacing given between the nails is 1m to 1.2m.

  • Self-drilling soil nailing method

In this method hollow bars are used and these bars are drilled on the surface of the slope and during the process of drilling grouts are also injected. This method is faster than drilled and grouted method. Also, with this method you can get better corrosion protection of the nails and other steel components as compared to driven soil nailing technique.

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