深凹露天矿降低爆破尘毒的现场试验

摘要

The composite method of field rnexperiment and numerical calculation is used to study the effect of filling rnthe shot holes with surface-active detergent solution to reduce the explosive rngas and dust in open-pit mine. The result shows that the volume of explosive rngas and dust can be decreased 50% by using surface-active defergent solution rninstead of rock cuttings to fill the shot holes. This technique reduces rnenvironment pollution in deep open pit mine%采用现场试验和数值计算相结合的方法，研究rn表面活性剂溶液填塞炮孔降低露天矿爆破尘毒的效果．结果表明，药液爆破与常rn规爆破相比，爆破尘毒产生量减少50％以上．该技术对减少深凹露天矿内的环境rn污染具有重要意义