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Application of decoupling linear plane charge in chamber blasting

LIU Quan,LONG Yuan,JI Chong,WAN Wen-qian,HE Yang-yang(Engineering Institute of Corps of Engineers,PLA Univ.of Sci.& Tech.,Nanjing 210007,China)  
In order to investigate the application of linear chamber blasting in complex environment,firstly,action mechanism of linear charge was analyzed.According to semi-theoretical or semi-experiential formulas for plane primer of linear charge of chamber blasting,a mathematical model was established.The linear charge arrangement theory was applied to the practice of blasting with plane charge in living engineering projects.The design cycle of plane primer of linear charge was shorter than those of primer.The research shows that by decoupling linear plane charge technology,the effective loosen rate is increased;the second blasting working is reduced;and the remarkable economical benefit is obtained.And some similar engineerings can draw lessons from it.
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