HOT WATER DRILL FOR TEMPERATE ICE.
By: Philip L. Taylor
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Abstract
The development of a high-pressure hot-water drill is described, which has been used reliably in temperate ice to depths of 400 meters with an average drill rate of about 1. 5 meters per minute. One arrangement of the equipment weighs about 500 kilograms, and can be contained on two sleds, each about 3 meters long. Simplified performance equations are given, and experiments with nozzle design suggest a characteristic number describing the efficiency of each design, and a minimum bore-hole diameter very close to 6 centimeters for a hot water drill. Also discussed is field experience with cold weather, water supply, and contact with englacial cavities and the glacier bed.
| Publication type | Conference Paper |
|---|---|
| Publication Subtype | Conference Paper |
| Title | HOT WATER DRILL FOR TEMPERATE ICE. |
| Year Published | 1984 |
| Language | English |
| Publisher | US Army Cold Regions Research & Engineering Lab |
| Publisher location | Hanover, NH, USA |
| Larger Work Title | CRREL Special Report (US Army Cold Regions Research and Engineering Laboratory) |
| First page | 105 |
| Last page | 117 |
| Conference Title | Ice Drilling Technology, Proceedings of the Second International Workshop/Symposium. |
| Conference Location | Calgary, Alberta, Can |
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