2010-05-21_REVISION - C1981010 ‎(4)‎

• Permit No: C1981010
• IBM Index Class Name: REVISION
• Doc Date: 5/21/2010
• Doc Name: 2010 Midterm Review Cost Estimate ‎(Memo)‎
• From: Jason Musick
• To: Rob Zuber
• Type & Sequence: MT6
• Email Name: JDM
• Email Name: RDZ
• Media Type: D
• Archive: No

Surface Blasting Work cont'd Task #: 020 sheet 2 of 2
BLASTING MATERIALS QUANTITIES QUANTITY UNIT
Total quantity of stemming required 40.15 cubic yards
Total quantity of explosives required 106,098 pounds
Total quantity of det. cord/fuse/wire required 18,257 fin. feet
Quantity of blasting caps used per blasthole 2 cap(s)
Total quantity of blasting caps required 1128 caps
Quantity of primers used per blasthole 1 rimer(s)
Total quantity of primers required 564 rimers
Quantity of delays used per blasthole 3 delay(s)
Total quantity of delays required 1694 delays
HOURLY EQUIPMENT COST Shiftbasis : 1 per day Data source : (CRG data)
Drilling equipment - Drill : REEDRILL SK35, 9.0 in.
- Drill pad preparation : Cat D10R - 10SU (2005)
Misc. drilling support equipment: NA
Misc. explosives support equipment : NA
Explosives delivery/prep. - Bulk truck :IFuel Tanker, 6x4, 210 HP
- CaD truck :Light Dutv Pickup, 4x4. 314 T.
Cost Breakdown : Drilling
Equipment Drill Pad
Preparation Misc. Drill Misc. Expl.
Support Support Explosives
Bulk Truck Delivery
Cap Truck
Import data filename : drilling dozer NA NA misctruk misctruk
Utilization -machine+att. no. 1 : 100 100 NA NA 50 50
-ripper or attachment no. 2 : NA NA NA NA NA NA
Equipment ownership $/hr : $50.38 $76.61 NA NA $10.90 $3.40
Machine+att. 1 operating $/hr : $115.96 $128.30 NA NA $15.14 $3.61
Ripper or att. 2 operating $/hr : $0.00 $0.00 NA NA $0.00 $0.00
Operator+additional labor $/hr : $25.58 $38.54 NA NA $38.70 $19.49
Unit subtotals : $191.92 $243.45 $0.00 $0.00 $64.74 $26.50
Number of units : 1 1 0 0 1 1
Group subtotals : $191.92 $243.45 $0.00 $0.00 $64.74 $26.50
Total work team cost/hour : $526.61
MATERIALS COST
Description Unit Unit Cost Quantity Total Cost
Blasting agent : Bulk ANFO nom. density pound $0.221 106,098.44 $23,447.76
Primers or boosters : Cast primer, 2.0 lb each $6.835 564.00 $3,854.94
Blasting caps: Non-electric cap, delay each $3.300 1,128.00 $3,722.40
Det. cord, fuse or wire : Detaline Detacord, 2.4 gr. linear foot $0.132 18,257.25 $2,409.96
Delays: MS connectors each $4.648 1,694.00 $7,873.71
Miscellaneous: none required NA $0.00 0.00 $0.00
Drill bits' : bit life = 1,750.0 linear feet $2,279.00 3.99 $9,089.30
bit life unit = linear foot, bit cost unit = each (per bit) Total materials cost : $50,398.07
DRILLING AND EXPLOSIVES PREPARATION TIME
Job Condition Correction Factors - Site altitude : 7,100 feet
Altitude adjustment : 0.95 (DMG est.)
Total drilling length : 6,980 linear feet Job efficiency factor : 0.67 (Ch. Exc. HB)
Unadjusted drilling rate : 82.00 feet/hour Adjusted drilling rate : 52.19 feet/hour
Drilling time : 133.72 hours Explosives prep. time : 100.00 hours
JOB TIME AND COST Total job time : 233.73 hours
Total unit cost : $2.386 per cu. yd. Total job cost : $117,742