ICE CONSTRUCTION - EXPERIMENTAL SUBMERSIBLE ELECTRIC PUMP FOR FREE FLOODING.

Investigations on leveling and thickening floating ice sheets by surface flooding at Point Barrow, Alaska, between 1958 and 1960, resulted in the development of a free-flooding technique for improving relatively smooth, natural sea ice. In this technique, the flood water is discharged around the pum...

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Bibliographic Details
Main Author: Hoffman, Clark R.
Other Authors: NAVAL CIVIL ENGINEERING LAB PORT HUENEME CA
Format: Text
Language:English
Published: 1964
Subjects:
*PUMPS
*ICE
UNDERWATER
CONSTRUCTION
ICE
POLAR REGIONS
ELECTRIC MOTORS
ELECTRIC PUMPS
FLOODING
Greenland
North Star
North Star Bay
Barrow
Point Barrow
Sea ice
Thule
Alaska
Online Access:http://www.dtic.mil/docs/citations/AD0451689
http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=AD0451689
Description
Summary:Investigations on leveling and thickening floating ice sheets by surface flooding at Point Barrow, Alaska, between 1958 and 1960, resulted in the development of a free-flooding technique for improving relatively smooth, natural sea ice. In this technique, the flood water is discharged around the pump and allowed to seek its own boundary. An elevated diesel-enginedriven pump was used to test this technique at Point Barrow; its disadvantages resulted in the development of an experimental 1600-gpm, 15-foot-head, 16-foot-long, 16-inch-diameter, electric-motor-driven submersible pump for free flooding. Tests on the experimental pump at North Star Bay near Thule, Greenland, showed that a submersible pump was well suited for free flooding. It was simple to install and recover, it required no priming and it was easy to keep ice-free during periods of non-use. These tests resulted in the development of an improved submersible pump for free flooding; currently, a prototype of this pump is being fabricated for field testing. (Author)

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