Research progress on impact resistance of electronic detonators
In small hole spacing blasting,due to inadequate impact resistance,the misfire of electronic detonators occurs frequently.To solve this problem,three impact resistance test methods for electronic detonators are introduced:geotechnical medium explosion impact test,Hopkinson rod impact test and underwater explosion impact test.And the advantages and disadvantages of each experimental method are reviewed.This paper summarizes the analysis and detection methods of the misfire of electronic detonators in impact experiments,and combs and analyzes the reasons for the impact failure.Several methods for improving the impact resistance of electronic detonators are introduced from the aspects of preferred parts and impact protection design.
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