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T.SBLE 23 <br />Overburden Blasting Parameters <br />r ~ <br />LJ <br />Explosive Material ANFO and Waterproof ANFO <br />Hole Depth 25 ft. 60 ft. <br />Hole Diameter 7 3/8 in. 7 3/B in. <br />Hole Stemming 12 ft. 12 ft. <br />Powder Column 8 Et. 43 ft. <br />Pounds Ponder per Hole 126 Lbs. 677 lbs.. <br />Powder Factor 0.53 lbs/BCY 1.19 lbe/BCY <br />Bank Cubic Yards per Hole 237 BCY 569 BCY <br />Drilling Pattern 16 ft. x 16 ft. 16 ft. x 16 ft <br />One Pound Cast Primers 1 1 <br />MS and Downhole Delays As Shown <br />Initiation Electric <br />DOWN HOLE POINT OF <br />DELAYS OPEN FACE INITIATION <br />250 ms <br />300 n <br />3 <br />• <br />SURFACE DELAYS ~ 17 ms <br />65 ms <br />