Accession Number : ADP004803

Title :   The Canadian Rufli-Rand Electro-Mechanical Core Drill and Reaming Devices,

Corporate Author : DEPARTMENT OF THE ENVIRONMENT CALGARY (ALBERTA) NATIONAL HYDROLOGY RESEARCH INST

Personal Author(s) : Holdsworth,G.

Report Date : DEC 1984

Pagination or Media Count : 12

Abstract : An electro-mechanical ice core drill of medium depth capability, was built in 1980. The design is based on previously established principles. New to the design is a geodesic dome structure which serves both as a structural unit to support the central fixed tower and to provide shelter for the drill crew. The whole unit can be packed in shipping crates weighting a total of 760 Kg, and by suitable disassembling, may be fitted into a Helio-Courier (STOL) aircraft in about five loads, including the generator. The ice core is about 96-100 mm in diameter and averages about 1 m in length. The drum has 270 m of cable with a tensile strength of 4200 Kg. The deepest holes to date are 103 m, in ice at -29 C, (Mt. Logan, 5340 m altitude) and 202.4 m in ice at - 51 C, (South Pole, 3100 m altitude). Currently being constructed, is an electro-thermal drill unit which will connect directly into the electro-mechanical cable termination.

Descriptors :   *DRILLING MACHINES, ICE, CORES, ELECTROMECHANICAL DEVICES, DRILLS, REAMERS, BOREHOLES, AIR TRANSPORTABLE EQUIPMENT, COLD REGIONS, CANADA

Distribution Statement : APPROVED FOR PUBLIC RELEASE