Drilling system

Hydraulic and earth engineering – Foundation – Columnar structure

Patent

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Details

175 65, 175394, 405248, E02D 700, F21B 1044

Patent

active

047937408

ABSTRACT:
A drilling system is provided wherein a high pressure water jet is provided near the cutting tip of the auger, the water jet being directed upwardly into the slip stream of spoil to break up the spoil and reduce friction between the spoil and the auger.

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