|Title||A New Electrothermal Drill for Coring in Ice|
|Author(s)||Francois Gillet , Daniel Donnou, Guy Ricou|
Ice-Core Drilling (ed. J.F. Splettstoesser), University of Nebraska Press, Lincoln, NE
The use of a drill tip made of a bare resistance wire fed at low voltage has allowed us to attain drilling speeds of 6 m/hr in temperate ice. The diameters of the hole and the core sample are 140 mm and 102 mm, respectively. In a cold glacier, a vacuum pump eliminates the meltwater. Using an armored electric cable, 500 m long, and a variable speed winch the equipment weighs a total of 1880 kg. The core barrel with the transformer and the unit for removing the melt water weighs 170 kg and is 8.20 m long. The cores obtained are 2.8 m long.
|Special Collections||International Workshop on Ice Drilling Technology Series, 1st International Workshop on Ice Drilling Technology|
|Equipment||Electrothermal (ET/ETED/ATED) Drills|
|Citation||Francois Gillet , Daniel Donnou, Guy Ricou ( 1976 ) A New Electrothermal Drill for Coring in Ice. Ice-Core Drilling (ed. J.F. Splettstoesser), University of Nebraska Press, Lincoln, NE , 19-27 .|