某浅埋隧洞爆破盲炮原因分析及预防措施  

The Reason Analysis and Preventive Measure of Blind Cannon in Shallow Covered Tunnel Blasting

作　　者：张修玉[1,2] 张义平[1,2] 池恩安[1,2,3] 王谬斯[1,2] 

机构地区：[1]贵州大学矿业学院 [2]贵州非金属矿产资源综合利用重点实验室 [3]武汉理工大学资源与环境工程学院

出　　处：《金属矿山》2012年第1期33-35,共3页Metal Mine

基　　金：国家自然科学基金项目(编号:50764001);贵州省重大科技专项(编号:1091115)

摘　　要：某隧洞全部采用数码雷管爆破掘进,但是盲炮出现的频率较高。从所用数码雷管的内部结构原理、雷管的抗拉强度以及爆渣抛掷速度理论等方面进行了详细计算,并分析了产生盲炮的各种原因。针对爆破器材、微差时间、爆破网络连接、装药结构及炮孔填塞质量等进行了调整,有效地控制了数码雷管在爆破过程中的盲炮问题。Digital detonator＇s blasting was totally adopted in a Shallow Covered tunnel to be drilled,but blind cannon occured frequently.According to the digital blasting cap＇s internal structure principle,blasting cap＇s tensile strength,the speed of explosive residue theory and other aspects,the various reasons of blind cannon were analyzed with shallow covered tunnel blasting by detailed computing.In view of these problems,finally some practical suggestions were given to prevent the blind cannon by adjusting the blasting equipment,the short-delay time,the blasting network connection,the charging structure,and the quality of blast hole filling.And these measures were effective.

关 键 词：隧洞爆破 盲炮 数码雷管 

分 类 号：TD235.2[矿业工程—矿井建设]