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Blast Area Configuration: <br />Wedge- shaped mass (highwall reduction using balanced cut/fill) <br />Blasting Method Description: <br />Conventional surface blast (fragmentation only) <br />Highwall or Bench Face Angle: <br />0.00 <br />h: lv <br />Regraded Slope Angle: <br />1.50 <br />h:lv <br />Highwall or Bench Length: <br />300 <br />feet <br />Highwall or Bench Width: <br />30 <br />feet <br />Highwall or Bench Height: <br />40.0 <br />feet <br />Depth to Base of Cut at Highwall: <br />20.0 <br />feet <br />SURFACE BLASTING WORK <br />Task description: Highwall Reduction (AM1) <br />Site: Juniper Quarry Permit Action: SI -1 Permit/Job #: M1982141 <br />PROJECT IDENTIFICATION <br />Task #: 01A State: Colorado <br />Date: 1/13/2012 County: Moffat <br />User: DMC <br />Agency or organization name' DRMS <br />BLAST AREA DIMENSIONS <br />BLAST AREA VOLUMES <br />BLAST AREA DESIGN <br />Abbreviation: None <br />Filename: M141 -01a <br />QUANTITY <br />Page 1 of 3 <br />CIRCES Cost Estimating Software <br />UNIT <br />QUANTITY <br />3,333 <br />UNIT <br />cubic yards <br />Total Volume of Dimensional Mass to be Shot: <br />Blast Volume to Subdrill Grade and Blast Pattern Lines: <br />3,603 <br />cubic yards <br />cubic yards <br />Blast Volume to Finish Grade and Blast Pattern Lines: <br />2,963 <br />Remaining Volume Required to be Re -Shot or Ripped: <br />370 <br />cubic yards <br />SURFACE BLASTING WORK <br />Task description: Highwall Reduction (AM1) <br />Site: Juniper Quarry Permit Action: SI -1 Permit/Job #: M1982141 <br />PROJECT IDENTIFICATION <br />Task #: 01A State: Colorado <br />Date: 1/13/2012 County: Moffat <br />User: DMC <br />Agency or organization name' DRMS <br />BLAST AREA DIMENSIONS <br />BLAST AREA VOLUMES <br />BLAST AREA DESIGN <br />Abbreviation: None <br />Filename: M141 -01a <br />QUANTITY <br />Page 1 of 3 <br />CIRCES Cost Estimating Software <br />UNIT <br />QUANTITY <br />UNIT <br />Recommended Blasthole Diameter: <br />2.940 <br />inches <br />Selected Blasthole Diameter: <br />4.000 <br />inches <br />Subdrilling Allowance: <br />2.4 <br />feet <br />Blasthole Depth: <br />11.7 <br />feet <br />Density of Rock: <br />Average Density Rock (ANFO <br />Basis) <br />rock density <br />Burden to Charge Diameter Ratio: <br />25 <br />times diameter <br />Burden: <br />8.0 <br />feet <br />Spacing to Burden Ratio: <br />1.3 <br />times burden <br />Spacing: <br />10.0 <br />feet <br />Cubic Yards of Rock per Blasthole: <br />41.48 <br />cubic yards <br />Powder Factor Description: <br />High <br />rock strength <br />Powder Factor: <br />1.000 <br />pounds /cu. yd. <br />Density of Blasting Agent: <br />1.10 <br />grams /cc <br />Quantity of Explosives per Blasthole: <br />41.48 <br />6.92 <br />POUNDS <br />feet <br />Height of Powder Column: <br />Height of Stemming per Blasthole: <br />4.81 <br />feet <br />Stemming to Burden Ratio: <br />0.60 <br />times burden <br />Quantity of Stemming per Blasthole: <br />0.0156 <br />cubic yards <br />Number of Rows: <br />3 <br />rows <br />Number of Blastholes per Row: <br />30 <br />holes per row <br />Total Number of Blastholes: <br />90 <br />holes <br />Total Length of all Blastholes: <br />1,056 <br />feet <br />SURFACE BLASTING WORK <br />Task description: Highwall Reduction (AM1) <br />Site: Juniper Quarry Permit Action: SI -1 Permit/Job #: M1982141 <br />PROJECT IDENTIFICATION <br />Task #: 01A State: Colorado <br />Date: 1/13/2012 County: Moffat <br />User: DMC <br />Agency or organization name' DRMS <br />BLAST AREA DIMENSIONS <br />BLAST AREA VOLUMES <br />BLAST AREA DESIGN <br />Abbreviation: None <br />Filename: M141 -01a <br />QUANTITY <br />Page 1 of 3 <br />CIRCES Cost Estimating Software <br />UNIT <br />