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为研究逐孔起爆技术在露天煤矿深孔爆破中的应用,以神华北电胜利露天矿为研究对象,在理论分析的基础上,设计出合理的爆破方案,得出具体爆破参数.利用Ansys对逐孔起爆过程进行数值模拟,分析逐孔起爆作用原理;对神华北电胜利露天矿的爆破方案进行数值模拟,验证爆破方案的合理性;分析不同堵塞长度下,岩石所受应力的变化,分析得到使爆破效果更好的堵塞长度.
In order to study the application of hole-by-hole detonation technology in deep-hole blasting of open-pit coal mine, taking Shengli Beihua Shengli open-pit mine as the research object and based on the theoretical analysis, a reasonable blasting scheme is designed to obtain the specific blasting parameters. Numerical simulation of hole-by-hole detonation process and analysis of the principle of hole-by-hole detonation; numerical simulation of blasting scheme of Shengli Beihua Shengli open-pit mine to verify the rationality of blasting scheme; analysis of the changes of rock stress under different blockage lengths, Get the blasting effect of better plug length.