Rotary drilling systems
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VdW-systemSlim pile walls can be constructed with the VdW system (front of the wall system) directly adjacent to existing structures. Drill casing and auger are drilled into the ground simultaneously by two rotary drives rotating in opposite directions. |
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Auger drillingCast-in-situ bored piles with continuous flight augers (CFA) or predrilling are typical methods for auger drilling with RTG rigs. A quick mounting system enables the attachment of various rotary drives on the leader. Predrilling is used when hard strata prevent the installation of sheet piles. |
