Exploration on misfire detonation of electronic detonators in small section tunnel and well pile operations
When electronic detonators are used in the blasting operation of small-section tunnels,foundation pits and well piles,there are many problems such as misfire detonation,blind shot and others.In order to solve this problems,the causes are analyzed by investigating the four phenomena after misfire.Furthermore,solutions are proposed such as strengthening the protection of the fuse head,enhancing the power of the detonator,and improving the delay scheme.It can provide references for similar problems such as misfire detonation and blind shot of electronic detonators in blasting construction.