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Continuous flight auger drilling

A single-pass drilling method

    
        

CFA drilling (cast-in-place piles)

Continuous flight auger drilling belongs to the dry rotary drilling methods. It is suitable for predrilling as well as for the installation of cast-in-place piles. The soil (under certain conditions also rock) is loosened and conveyed continuously using a continuous flight auger. The borehole wall is supported by the auger flights filled with drill cuttings.

  • Kelly extension

  • Leader top for auxiliary rope

  • Rotary drive

  • Leader

  • Auger

  • Auger cleaner

  • Auger guide

  • Auger starter

        
    
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Video: Continuous flight auger drilling

The video shows an LRB 125 installing cast-in-place piles using the continuous flight auger drilling method.

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