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2016-04-27_REPORT - M1980244
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2016-04-27_REPORT - M1980244
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Last modified
10/26/2020 11:53:59 PM
Creation date
5/3/2016 9:53:32 AM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
M1980244
IBM Index Class Name
REPORT
Doc Date
4/27/2016
Doc Name
Weekly Constructioun Quality Assurance Report - w/e 4/16/16
From
Newmont
To
DRMS
Email Name
TC1
Media Type
D
Archive
No
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Newmont Mining Corporation <br /> Cripple Creek&Victor Gold Mine . <br /> Squaw Gulch VLF CQA <br /> NewFields Job No.475.0106.006 <br /> Week Ending Saturday,April 16,2016 <br /> 1.0 EARTHWORKS <br /> 1.1 Underground Working Remediation <br /> ➢ NewFields personnel observed confirmatory drilling activities and noted any voids that <br /> were encountered. Confirmatory drilling was performed at the following underground <br /> workings: <br /> o Upper Anaconda Mine Complex — UG#6525, UG#6524, UG#6488, UG#6487, <br /> UG#6489 (further remediation required) <br /> ➢ After the subgrade was accepted, three layers of geogrid were placed on the third <br /> "step" for UG#6617. As built survey was completed prior to the placement of six inches <br /> of select structural fill over each geogrid layer. Compaction of the select structural fill <br /> was achieved using a smooth drum roller. A fourth "step" is required before the working <br /> can be considered remediated. <br /> ➢ Underground working #6513 was investigated using an excavator. An adit/stope was <br /> encountered. The working was backfilled to allow for confirmatory drilling in the area. <br /> Further remediation is required. <br /> ➢ Underground Working #6444 was shot on Thursday, April 14, allowing the remainder of <br /> the concrete plug to be shaped. The working was inspected by NewFields <br /> representatives and accepted for concrete plug placement. Further remediation is <br /> required. <br /> ➢ Underground Working #6695 was investigated using an excavator. The working was <br /> removed and hard rock was encountered at 8 feet in depth. Nothing was found and the <br /> area was backfilled. The working is considered remediated. <br /> 1.2 Structural Fill <br /> Structural Fill placement continued within the Squaw Gulch VLF Phase II footprint. NewFields <br /> personnel inspected fill material and observed placement and compaction procedures to <br /> ensure that they were in accordance with the project technical specifications. Ambient and fill <br /> material temperatures were monitored and recorded during fill placement to ensure that no <br /> frozen material was placed or compacted in the area. The following structural fill construction <br /> activities occurred during the shift: <br /> ➢ Slope rough grading(cut to stockpile/hauled to fill) in areas bounded by bench stations: <br /> o K18+00 to K23+00 and J20+00 to J24+00 <br /> o M18+00 to M24+00 and 526+00 to S32+00 <br /> o K18+00 to K22+00 and M12+00 to M20+00 <br /> Page 2 <br />
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