摘要
对经山寺铁矿深孔台阶爆破产生大块和根底原因进行分析,提出有效解决方法,包括确定合理孔网参数、采用合理装药方式、确定合适堵塞长度以及采用合理起爆形式等。
The factors of causing big block and root bottom produced in step deep hole blasting of Jingshansi mine are analyzed and the effective methods including determining reasonable hole parameter,taking reasonable loading mode,determining jam length and taking reasonable detonate fashion are put forward.
出处
《煤矿爆破》
2010年第1期31-33,共3页
Coal Mine Blasting
关键词
台阶爆破
大块率
技术措施
根底
超深值
step blasting
boulder yield
technological measure
root bottom
extra-deep value
