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2018-01-24_REVISION - C1981019 (2)
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2018-01-24_REVISION - C1981019 (2)
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Entry Properties
Last modified
1/24/2018 10:35:13 AM
Creation date
1/24/2018 9:45:44 AM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1981019
IBM Index Class Name
Revision
Doc Date
1/24/2018
Doc Name
Adequacy Review
From
DRMS
To
Colowyo Coal Company LP
Type & Sequence
RN7
Email Name
ZTT
Media Type
D
Archive
No
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SURFACE BLASTING WORK <br />Task description: Drill and Shoot South Taylor Highwall - Cast Blast (3000 ft) <br />Site: Colowyo Coal Mine Permit Action: RN7 Permit/Job#: C1981019 <br />PROJECT IDENTIFICATION <br />Task #: 001 State: Colorado <br />Date: 1/12/2018 County: Moffat <br />User: ZTT <br />Agency or organization name: DRMS <br />BLAST AREA DIMENSIONS <br />Abbreviation: None <br />Filename: C019-001 <br />OUANTITY UNIT <br />Blast Area Configuration: <br />Box -shaped mass (flat safety benches, general pit blasting) <br />Blasting Method Description: <br />Cast blast (fragmentation + lateral movement) <br />Highwall or Bench Face Angle: <br />1.00 <br />h:lv <br />Regraded Slope Angle: <br />0.00 <br />h:lv <br />Highwall or Bench Length: <br />3,000 <br />feet <br />Highwall or Bench Width: <br />150 <br />feet <br />Highwall or Bench Height: <br />100.0 <br />feet <br />Depth to Base of Cut at Highwall: <br />50.0 <br />feet <br />BLAST AREA VOLUMES <br />BLAST AREA DESIGN <br />QUANTITY <br />UNIT <br />Total Volume of Dimensional Mass to be Shot: <br />694,444 <br />cubic yards <br />Blast Volume to Subdrill Grade and Blast Pattern Lines: <br />679,583 <br />cubic yards <br />Blast Volume to Finish Grade and Blast Pattern Lines: <br />603,537 <br />cubic yards <br />Remaining Volume Required to be Re -Shot or Ripped: <br />90,907 <br />cubic yards <br />BLAST AREA DESIGN <br />
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