频分多址检测法在硐室爆破盲炮识别过程中电雷管安全性试验研究

摘要

Aiming at safety of electric detonator about identification of misfire in chamber blasting by Frequency Division Multiple Access Method,doing experiments and test induced current about electric blasting network combing the theory and two single generation in the case of different power,distance and inductive area. Analyzing the change trend of current,the result showed that:(1)Detonators are safe under working state of two single generation when inductive area of electric blasting network is less than or equal to 0.5 m2.(2)Detonators are explosive when inductive area of electric blasting network and single generation is 1.32 m2,0.78 m2,and their position is coincide.(3)Electric detonators are detonated when area of electric blasting network is bigger than 0.5 m2, and position of electric blasting network and single generation is coincide.By analyziny the test, the results show that when power of single generation less than or equal to 120 W and inductive area of electric blasting network is less than 0.5 m2,electric detonators are safe.%针对频分多址法（FDMA）在硐室爆破盲炮检测识别过程中的电雷管安全性问题，结合该方法原理，通过2种信号发生器在不同功率、不同距离和不同电爆网路感应面积的情况下发射电磁信号，进行现场电爆网路模拟试验并检测感应电流。对电流变化趋势进行分析发现：（1）当电爆网路感应面积≤0.5 m2时，在2种信号发生器工作状态下电雷管都是安全的；（2）当电爆网路感应面积与信号发生器面积相等，分别为1.32 m2和0.78 m2，且二者距离重合时电雷管全部会被引爆；（3）当电爆网路感应面积＞0.5 m2，且放置位置与信号发生器重合时电雷管均会被引爆。通过分析试验结果得出：在信号发生器功率≤120 W 的条件下，只要保证电爆网路感应面积＜0.5 m2，电雷管均不会发生爆炸。