Safe and efficient blasting is the prime objective of any blasting engineer. The safe and efficient is generally called when there are no fly rocks, less ground vibration and optimum fragmentation with loose muckpile. This study describes the use of stemming material and inter-row delay timing effect to improve the efficiency of the blast and its results. From the study, it was found that the use of aggregates or screened drill cuttings having a size of 3-7 mm helps in reducing the collar generated boulders as well as increasing the looseness of the muckpile. Change in delay timing between rows also determined that the mean fragment sizes are fair and uniform, muckpile parameters were improved when the delay between first and second row was 8-14 ms/m of burden and the delay gap between last two rows was 5 ms/m of the burden.

安全高效的爆破是任何爆破工程师的首要目标。当没有飞石，较少的地面振动以及散乱的堆积物达到最佳破碎效果时，通常称为安全高效。这项研究描述了使用填塞材料和行间延迟时间效应来提高爆炸效率及其效果。从研究中发现，使用骨料或筛分的钻屑，其尺寸为3-7毫米，有助于减少卡圈产生的巨石并增加泥土的松动度。行之间延迟时间的变化还确定了平均片段大小是公平且均匀的，当第一行和第二行之间的延迟为8-14 ms / m的负担，而后两行之间的延迟间隔为5 ms时，muckpile参数得到了改善/ m的负担。