
PRE-DRILLING
Why Pre-drill?
Pre-drilling is used normally in two cases:
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To drill through frost in winter season
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Help the pile penetrate dense soil to the design depth
Depending on the type of site terrain and the size of holes to be pre-drilled, a truck mounted mobile rig or a crawler type hydraulic rig can be used. Roterra offers a diverse fleet of predrilling equipment.
Advantages of Pre-drilling
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Increases pile productivity
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Reduces pile non-conformances related to plumb issues
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Reduces damage of pile tip or helix leading edge