Research Article
Optimization and Practice for Partition Pressure Relief of Deep Mining Roadway Using Empty-Hole and Deep-Hole Blasting to Weaken Coal
Table 6
Variance analysis.
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Note: SST is the sum of squares of total deviations; SSJ (J: -) is the sum of squares of deviations of various factors; SSE is the sum of squares of deviations of test errors; MSJ (J: -) is the mean of squares of deviations of various factors; (: -) is the degrees of freedom for various factors; is total degrees of freedom; : the statistical verification value. |