CO_2爆破技术在巷掘进松动试验研究

Experimental Study on Drainage of Carbon Dioxide Blasting Technology in Lane

在门克庆煤矿井下掘进工作面进行了液态CO_2爆破岩石的现场试验。通过岩石剥落程度与碎块的大小间接反映出的不同布孔方式下的爆破效果的差异,确定液态CO_2爆破孔的合理布孔方式。从现场试验的结果可以得出液态CO_2爆破在菱形布孔方式下爆破效果好于矩形布孔方式。

In order to seek a better deployment and optimization plan, a field test of liquid CO2blasting rock was performed at the underground excavation face of Menkeqing coal mine. The degree of flaking and the size of the fragments indirectly reflect the difference in blasting effect under different hole arrangement patterns, and determine the reasonable hole pattern of liquid CO2 blast holes. From the results of field tests, it can be concluded that the blasting effect of liquid CO2 blasting in the diamond- shaped hole arrangement pattern is better than the rectangular hole arrangement pattern.