基于正交试验的小断面巷道掏槽爆破参数确定
章逸锋,李洪超,张智宇,李恒

Determination of Blasting Parameters for Excavation and Cutting of Small Section Roadways Based on Orthogonal Experiments
Yifeng ZHANG,Hongchao LI,Zhiyu ZHANG,Heng LI
表7 炮孔利用率与槽腔体积比方差分析
Table 7 Variance analysis of blast hole utilization rate and cavity volumn ratio
目标参数方差来源平方和自由度方差F值临界值显著性
炮孔利用率/槽腔体积因素ASAfA=r-1SAˉ=SA/?fAFA=SAˉ/SeˉF1-αfA,fe
因素BSBfB=r-1SBˉ=SB/?fBFB=SBˉ/SeˉF1-αfB,fe
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误差SefeSeˉ=Se/?fe
总和STfT=n-1