ABSTRACT
Kris Zacny, Gale Paulsen, Yoseph Bar-Cohen, Xiaoqi Bao, Mircea Badescu, Hyeong Jae Lee, Stewart Sherrit, Victor Zagorodnov, Lonnie Thompson, and Pavel Talalay
CONTENTS
10.1 Ice Drilling Methods ........................................................................................................ 272 10.2 Mechanical Drilling in Ice ............................................................................................... 274
10.2.1 Direct-Push Drilling and Penetrating .............................................................. 274 10.2.2 Percussion Drills ................................................................................................. 276 10.2.3 Hand-and Power-Driven Portable Ice Drills .................................................277 10.2.4 Conventional Machine-Driven Rotary Drill Rigs ..........................................283 10.2.5 Flexible Drill-Stem Drill Rigs ............................................................................ 286 10.2.6 Cable-Suspended Electromechanical Auger Drills ....................................... 287
10.2.6.1 Icelandic Drill ..................................................................................... 289 10.2.6.2 University of Copenhagen (UCPH) Drill ....................................... 291 10.2.6.3 Fast Electromechanical Lightweight Ice Coring System .............. 293 10.2.6.4 Backpack Drill .................................................................................... 294
10.2.7 Cable-Suspended Electromechanical Drills with Near-Bottom Circulation........................................................................................................... 295
10.2.7.1 The CRREL Drill ................................................................................ 296 10.2.7.2 ISTUK Electromechanical Drill ........................................................ 298 10.2.7.3 KEMS Drill ..........................................................................................300 10.2.7.4 PICO-5.2′′ Electromechanical Drill .................................................. 301 10.2.7.5 JARE Electromechanical Drill ..........................................................303 10.2.7.6 The Hans Tausen Electromechanical Drill .....................................305 10.2.7.7 DISC Electromechanical Drill .......................................................... 307
10.3 Thermal Drilling in Ice ....................................................................................................309 10.3.1 Electro-Thermal Coring Drills ..........................................................................309
