Very economical method for drilling holes in soft soils and unconsiolidated formations. Can employ both the top head drive as well as kelly driver with telescopic kellys. A wide range of augers are available in different lengths and diameters. Hollow augers are used in construction for grouting as well as in environmental investigation. The HD200, HD205P and HD325P are suitable for piling applications. HD70 and HD50K are ideal for general construction and investigation work. HD high-torque Hydraulic Rotators are ideal for augering.
Case Story (in pdf) :
Ever Increasing Circles - Auger
(from GeoDrilling International Magazine)