| 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. |
| Genre: | Conference Paper |
| ProdID: | 70012887 |
| Citation Author: | Taylor, Philip, L. |
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| Citation End Page: | 117 |
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| Citation Language: | English |
| Citation Larger Work Title: | CRREL Special Report (US Army Cold Regions Research and Engineering Laboratory) |
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| Citation Number Of Pages: | 13 |
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| Citation Publisher: | US Army Cold Regions Research & Engineering Lab |
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| Citation Search Results Text: | HOT WATER DRILL FOR TEMPERATE ICE.; 1984; Conference Paper; CRREL Special Report (US Army Cold Regions Research and Engineering Laboratory); Taylor, Philip, L. |
| Citation Start Page: | 105 |
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| Citation Year: | 1984 |
| Type: | citation/reference |
| Text: | HOT WATER DRILL FOR TEMPERATE ICE.; 1984; Conference Paper; CRREL Special Report (US Army Cold Regions Research and Engineering Laboratory); Taylor, Philip, L. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| Date Other: | Sun, 1 Jan 1984 00:00 -0600 |
| Publisher: | US Army Cold Regions Research & Engineering Lab |
