2008-04-04_REVISION - C1994082 ‎(4)‎

• Permit No: C1994082
• IBM Index Class Name: REVISION
• Doc Date: 4/4/2008
• Doc Name: Cost Estimate
• From: Jim Stark
• To: Dan Mathews
• Type & Sequence: MT3
• Email Name: SB1
• Media Type: D
• Archive: No

Surface Blasting Work cont'd Task # : 01a sheet 2 of 2
BLASTING MATERIALS QUANTITIES QUANTITY UNIT
Total quantity of stemming required 44.37 cubic yards
Total quantity of explosives required 24,534 pounds
Total quantity of det. cord/fuse/wire required 9,535 lin. feet
Quantity of blasting caps used per blasthole 1 cap(s)
Total quantity of blasting caps required 232 caps
Quantity of primers used per blasthole 1 rimers)
Total quantity of primers required 232 rimers
Quantity of delays used per blasthole 1 delay(s)
Total quantity of delays required 234 delays
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HOURLY EQUIPMENT COST P Y
Misc. explosives su
Drilling equipment -Drill : REEDRILL SK451, 9.0 in.
- Drill pad preparation : NA
Misc. drilling support equipment :NA
Explosives delivery/prep. -Bulk truck :NA
-Cap truck :NA
Cost Breakdown : Drilling
Equipment Drill Pad
Preparation Misc. Drill Misc. Expl.
Support Support Explosives
Bulk Truck Delivery
Cap Truck
Import data filename : drilling NA NA NA NA NA
Utilization -machine+att. no. 1 : 100 NA NA NA NA NA
-ripper or attachment no. 2 : 100 NA NA NA NA NA
Equipment ownership $/hr : $74.24 NA NA NA NA NA
Machine+att. 1 operating $/hr : $121.17 NA NA NA NA NA
Ripper or att. 2 operating $/hr : $3.38 NA NA NA NA NA
Operator+additional labor $/hr : $51.79 NA NA NA NA NA
Unit subtotals : $250.57 $0.00 $0.00 $0.00 $0.00 $0.00
Number of units : 1 0 0 0 0 0
Group subtotals : $250.57 $0.00 $0.00 $0.00 $0.00 $0.00
Total work team cost/hour : 5250.57
MATERIALS COST
Description Unit Unit Cost Quantity Total Cost
Blasting agent : Bu1kANF0 nom. density pound $0.177 24,534.17 $4,342.55
Primers or boosters : Cast primer, 0.31b each $2.125 232.00 $493.00
Blasting caps : Non-electric cap, inst. each $2.837 232.00 $658.18
Det. cord, fuse or wire : Detonating cord, 10 gr./ft. linear foot $0.087 9,535.24 $829.57
Delays : MS connectors each $3.615 234.00 $845.91
Miscellaneous : Stemming, 1.5 in. gravel cu. yd. $28.80 34.34 $988.99
Drill bits " : bit life = 1,750.0 linear feet $2,155.00 2.15 $4,628.20
* bit life unit =linear foot, bit cost unit =each (per bit) Total materials cost : $12,786.40

DRILLING AND EXPLOSIVES PREPARATION TIME
Job Condition Correction Factors - Site altitude : 7,800 feet
Altitude adjustment : 0.90 (DMG est.)
Total drilling length : 3, 758 linear feet Job efficiency factor : 0.67 (Ch. Exc. HB)
Unadjusted drilling rate : 82.00 feet/hour Adjusted drilling rate : 49.45 feeUhour
Drilling time : 76.01 hours Explosives prep. time : 41.88 hours

JOB TIME AND COST Total job time : 117.89 hours
Total unit cost : $0.746 per cu. yd. Total job cost : $31,832