缓倾斜极薄矿体开采的爆破技术试验研究

Experimental Study of Blasting technique for Mining Gently inclined Extremely-thin Orebody

在缓倾斜极薄矿体的开采试验中,为取得较好的浅孔抛掷爆破效果,对最小抵抗线、孔间距、装药系数进行了正交试验,根据试验结果,用极差分析法分析了试验数据,得到最优的凿岩爆破参数。在采矿试验中,通过采用优化选择的凿岩爆破参数,取得了良好的效果。

In the mining experiment of gently inclined extremely-thin orebody, the orthogonal experiments on burden of hole, spacing of hole and charge ratio were carried out in order to achieve good results of short-hole pin-point blasting. The experimental data was analyzed by maximum difference analysis method, thus optimized drilling-and-blasting parameters were obtained. Through the adoption of optimized parameters, good blasting results were achieved in the mining experiment.