小龙潭露天煤矿降低爆破震动的技术研究

A Study on the Technique of Reducing Vibration from Blasting in Xiaolongtan Open Coal Mine

作者采用减小一次起爆药量、改用低爆速炸药、孔间微差爆破技术以及提高爆破地震频率等方法,降低爆破所产生的震动。通过现场试验和爆破地震效应的观测,选取了较为合理的爆破微差时间及相应的爆破地震频率,降低了矿区附近的爆破地震效应。

Measures such as reducing the explosive of ignition, using low blasting velocity explosive, applying the blasting technology of millisecond delay and increasing blasting frequency etc. are taken to reduce vibration. Proper millisecond time of blasting and corresponding frequency are chosen to decrease the blasting effects on buildings near the area of coal strip mine.