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<br /> <br /> <br />BLAST HOLE PATTERN /O~x/O~ <br />TOP OFBEhCH-COAL SEAM REMOVED <br />25pm PR/MA CORD TRUNKL/NE <br />N <br />O <br />in <br />rn <br />OPEN FACE ~25ms. DELAY <br />ALTIVE PlT AREA <br />TYP/CAL BLAST HOLE PgTTERN <br />EXPOSED GOAL <br />SEAM <br />TRUNKL/NE TO BLAST/NG GAP <br />F/GORE 2.05-3 <br />