Call number:
ZSP-201-78/2
In:
CRREL Report, 78-2
Description / Table of Contents:
Many of the technical questions relating to iceberg transport are given brief, but quantitative, consideration. These include iceberg genesis and properties, the mechanical stability of icebergs at sea, towing forces and tug characteristics, drag coefficients, ablation rates, and handling and processing the iceberg at both the pick-up site and at the final destination. In particular the paper attempts to make technical information on glaciological and ice engineering aspects of the problem more readily available to the interested planner or engineer. Specific conclusions include: (1) No unprotected iceberg, no matter how long or wide, would be likely to survive the ablation caused by a long trip to low latitudes. (2) Icebergs that have a horizontal dimension exceeding 2 km may well be prone to breakup by long wavelength swells. (3) To avoid the dangers associated with an iceberg capsizing, the width of a 200-m thick iceberg should always be more than 300 m. (4) For towing efficiency the length/width ratio of a towed iceberg should be appreciably greater than unity. (5) For a pilot project, the selected iceberg would have to be quite small, if for no other reason than the practical availability of tug power.
Type of Medium:
Series available for loan
Pages:
v, 31 Seiten
,
Illustrationen
Series Statement:
CRREL Report 78-2
URL:
https://hdl.handle.net/11681/9421
Language:
English
Note:
CONTENTS
Abstract
Preface
Introduction
Sources and properties of tabular icebergs
Sources
Characteristics of ice shelves near the ice front
Characteristics of tabular icebergs
Towing
Geophysical and engineering considerations
Tug characteristics
Handling and processing
Cutting and boring with thermal devices
Penetration with electrothermal devices
Electrothermal cutting
Making vertical cuts by pre-split blasting
Primary fragmentation by blasting
Primary fragmentation by mechanical sawing
Comminuting ice with machines
Slurry pipelines
Conclusion
Literature cited
Location:
AWI Archive
Branch Library:
AWI Library
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