Breaking Ice with Explosives

The use of explosives to break floating ice sheets is described, and test data are used to develop design curves that predict explosives effects as ice thickness, charge size, and charge depth vary. Application of the curves to practical problems is illustrated by numerical examples. The general fea...

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Bibliographic Details
Main Author: Mellor, Malcolm
Other Authors: COLD REGIONS RESEARCH AND ENGINEERING LAB HANOVER NH
Format: Text
Language:English
Published: 1982
Subjects:
Snow
Ice and Permafrost
Statistics and Probability
Ammunition and Explosives
Explosions
*EXPLOSION EFFECTS
*ICE
*ICE BREAKUP
*EXPLOSIVE CHARGES
CRATERING
DEPTH
UNDERWATER EXPLOSIONS
REGRESSION ANALYSIS
THICKNESS
MATHEMATICAL PREDICTION
BLAST LOADS
SCALE MODELS
EXPERIMENTAL DATA
CURVES(GEOMETRY)
AST42
PE62730A
WU010
Ice
permafrost
Online Access:http://www.dtic.mil/docs/citations/ADA123761
http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA123761
Description
Summary:The use of explosives to break floating ice sheets is described, and test data are used to develop design curves that predict explosives effects as ice thickness, charge size, and charge depth vary. Application of the curves to practical problems is illustrated by numerical examples. The general features of underwater explosions are reviewed and related to ice blasting. Quasi-static plate theory is considered, and is judged to be inapplicable to explosive cratering of ice plates. The specific energy for optimized ice blasting is found to compare quite favorably with the specific energy of icebreaking ships. All available field data for ice blasting are tabulated in appendices, together with details of the regression analyses from which the design curves are generated.

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