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<br />Table 2.05-6 <br />BLASTING PARAMETERS - OVERBURDEN <br />• <br />Average Hole Depth <br />Hole Diameter <br />Average Stemming <br />Average Powder Column <br />Average Quantity Powder Per Hole <br />Average Powder Factor <br />Average Volume Fragmented Per Hole <br />Average Blast Hole Pattern <br />Number Cast Primers Per Hole <br />Delay Size <br />28 feet <br />5 1/8" to 6 1/2" <br />22 feet <br />6 feet <br />65 pounds <br />.6 lb./BCY <br />104 BCY <br />10' x 10' <br />1 - 16 oz. <br />25 MS <br />Typical Converted Weights & Distance Tabulation <br />Maximum Number Holes Blasted Per Delay Minimum Distance to Structure <br />38 3000' <br />27 2500' <br />17 2000' <br />10 1500' <br />4 1000' <br />1 500' <br />* Less Than 500' <br />* Powder column is decked and delayed within each hole or <br />additional holes are drilled with less powder per hole <br />to comply with Section 4.08.4 (10) (b) (ii) <br />• <br />2.05-49 <br />