渐进螺旋掏槽炮孔间距的理论计算Theoretical Calculation of Blast Hole Spacing in Progressive Spiral Cut
李萍,王玉杰,柯波
摘要(Abstract)：
为确定渐进螺旋掏槽炮孔间距,通过破碎半径、膨胀余量、破碎类型和最优抵抗线4种不同的首爆装药孔与空孔距离计算方法的分析比较,得出合理的首爆装药孔与空孔的距离,进而采用后续装药孔的最优抵抗线原理,结合图形分析的方法来确定后续装药孔的合理抵抗线及与空孔的间距,从而实现渐进螺旋掏槽炮孔间距的理论计算,同时得到装药孔的数目的和位置图。
关键词(KeyWords)： 渐进式螺旋掏槽;炮孔间距;理论计算;井巷工程
基金项目(Foundation): 国家“十二五”科技支撑计划重点项目(编号2011BAB05B03)子课题“多层含钒复杂矿体安全开采关键技术”
作者(Author): 李萍,王玉杰,柯波
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