一种光面爆破用乳化炸药的研究与应用

Research and Application of an Emulsion Explosive Used in Smooth Blasting

针对我国隧道掘进中光面爆破采用传统乳化炸药存在装药不便及爆破效果差的问题,改变现有装药方式,生产了新型25 mm乳化炸药,研究了该乳化炸药的爆炸性能、隧道掘进装药情况及爆破效果。结果表明,新型小直径乳化炸药爆炸性能符合GB18095—2000要求,储存期6个月以上;采用新型装药方式,经现场爆破施工,开挖面平整稳定,光面爆破效果较好。

To solve inconvenient charging and poor blasting effect in the smooth blasting, a new type of 25 mm- diameter emulsion explosive was produced by changing the existing way of loading. Performances of this product, including detonation property, charging in tunnel excavation and blasting effect, were analyzed. Results show that performance data of this emulsion explosive have reached the standard of GB18095--2000, and its storage period exceeds 6 months or longer. Using the new charging mode and after the blasting construction, the excavation was stable with smooth surface, and smooth blasting effect was improved.