渐进螺旋掏槽炮孔长度与装药长度的理论计算Theoretical Calculation of Blast Hole Depth and Loaded Length 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长度与装药长度的参数,通过引用在小破裂角条件下的装药量计算公式,结合一般炮孔爆破所需要的每米装药量计算公式,选择合理线性装药密度;进而根据柱状装药破岩等效抵抗理论,运用利文斯顿爆破漏斗理论以及线装药密度,定量的给出了渐进螺旋掏槽爆破装药孔孔深的理论计算公式;同时分析讨论了堵塞长度。
关键词(KeyWords)： 井巷掘进;渐进式螺旋掏槽;炮孔长度;装药长度
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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