Polymer and Materials Science
Wiley InterScience Backfile Collection 1832-2000
Chemistry and Pharmacology
Process Engineering, Biotechnology, Nutrition Technology
There are many difficulties and dangers when carrying out underwater blasting in a rapid stream. The electromagnetic firing method is a special type of the remote control firing method and has a distinct advantage to the underwater blasting. The principle of this method is based on electromagnetic phenomena, the induced electromotive force by the coil which is set into the electromagnetic field is applied to fire the detonation cap.In this paper, the authors discuss the fundamental theory of the electromagnetic field caused by the exciting loop, and the effect of the conductive medium. As an example, they present the procedure and results of an actual underwater blasting work which is the first application of this technique.
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