REV101415

• Permit No: M1980143
• IBM Index Class Name: Revision
• Doc Date: 11/29/1995
• Doc Name: TEXAS CREEK GRAVEL PIT M-80-143 TR APPLICATION
• From: DMG
• To: NEILS EXCAVATION
• Type & Sequence: TR2
• Media Type: D
• Archive: No

Colorado Division of Minerals and Geology
ESTIMATING FORM - BULLDOZER WORK
Task $: la Prep. by: SSS Task File Name: M143-1a
Date: 11/20/95 Permit #:M-80-143 Mine: Texas Creek Gravel Pit
Permit Action: Recalculated Bond for Technical Revision No. 2
Task Description: Backfill Highwall From Above
llOURLY EQUIPMENT COST
Basic Nachine: Cat DBN Horsepower: 285
Blade Type: SEMT-UNIVERSAL ---------
Attachment $1: ROPS Cab Shif t Basis: 1/day
Attachment #2: 3-shank ripper ---------
Cost Breakdown:
---------- Utilization X
Ownership cost/hr = 546.40 N/A
Operating b overhaul cost/hr- dozer = 551.67 100
-ripper = 52.01 30
Operator cost/hr = 522.95 N/A
Total egpt. unit cost/hr = 5123.03 Total fleet cost/hr: 5123.03
MATERIAL QUANTITIES
Initial Swell Loose
Volume: 5.625.0 CCY Factor: 1.125 Volume: 6.328.1 LCY
Source of quantity ta ke-off: Assume backfill of 30'x300' highwall to 3: 1
Source of est. swell factor: CAT Handbook
HOURLY PRODUCTION
Job Condition Correction Factors
Avg. push distance: 50 ft. -------- ----- ~------
- Operator.......... 0.75 (avg.)
Unadjusted hourly Mat. consistency.. 0.80 (Cat tbl)
dozer production: 1180 LCY/hr Dozing method..... 1.00 (gen.)
- ------ Visibility........ 1.00 (avg.)
Haterial consistency: Job efficiency.... 0.83 (lsh/day)
Dry, non cohesive Spoil pile factor. 1.00 (doz-oc)
------- ---- Push gradient..... 1.35 (Cat tb1)
Avg. push gradient: 16.00 X (neg) Altitude deration. 1.00 (Cat tbl)
Material weight... 1.00 {Cat tbl)
Avg. site altitude: 7300 ft. Blade type........ 1.00 (S.SU.U)
Material weight 2300.00 lb/LCY Net Job Correction 0.67
Nat. Descr.:
GENERAL FILL Adjusted Unit Prod.: 792.11 LCY/hr
Adjusted Fleet Production: 792.11 LCY/hr
J08 COST
Fleet size 1 Dozers) Total Job Tice: 7.99 Hours
Unit Cost 50.155 /LCY Total Job Cost: 5982.85