GENERAL42606

• Permit No: C1980004
• IBM Index Class Name: General Documents
• Doc Date: 1/9/1987
• Doc Name: Midterm Review Findings Document
• Permit Index Doc Type: Findings
• Media Type: D
• Archive: No

EARTHWORK ESTIMATING - RIPPING WORK
Tusk ~S
TASK DESCRIPTION:
2r(~ h4c~'~-LC~(I ~o~H a.-~:~[ :zr~us
HOURLY EQUIPMENT COST:
Machine make and model ~a'~ ~)-~(. attachments: ~-~(n~tuk rr.on2r
„
adjusted Operator Cost Per Hour

shift
no. hours
per
da days
per
meek base
rental
rate/hr.
operating
cost/hr base
wage
rate/hr
overtime
adjustment s ift
premium
adj. total
equip.
cost/hr
1 8 gfiS-`+`4 3'x_35 /~.x A N/A $ 138.0
2 -- _~
3 - - -
LOLd I = ~ ~ ~ g-'jam-~
$ !;€.? o /hr. divided by _~ shifts/day = $ 138'.9 o average equipment cost/hr.
MATERIAL QUANTITIES:
Volume Method {bank material or,rock): BCY (total be ripped)
type of material /j//uQ seizmic ve ocity = /j/ fps
Area method (compacted fills, pavement) = Z 9/ 85 Z sq. ft. (total area)
ripping depth required to alleviate compaction = z ~ ' inches
Verification method(s) used S. ~ ac t /. S ~ c = ~. lac r~e s
HOURLY AROQUCTIOtI:
Volume method (for QRL, D9L, and D10 dozers w/single shank ipners only):
q~~/~ BCY/hr from aroduction graphs in_ Sic. V[I x /j/ /~ job efficiency (avq. for
a-T'f shits x~ altitude adj. _ /j//i¢ BCY/hr a ,lusted production
Area method (for dozers, track loaders or graders w/multi-shank rippers)
r s ~>~_ , sa. ft./hr (from oroductioP tahles in Section VII) x _6 3 job
e tic~ency avg. for all shifts) x ~~ /~ altitude adj. = 9o.c63.~ri sq. ft./hr
-,-
JOB TIME:
Volume method: ,~i/~ BCY divided by ////~ BCY/hr = ,1/~1 hrs
o ma vo ume atd. proms o Jt t ob time
Area method: ~91 $5 . sq. ft. divided by ?/~ $s~.=~/sq. ft/hr = ~ /? hrs
totem area ad,7. prod. tot. doh time
JOB COST:
/ L hrs x 3 ' : ~ `? O /hr = $ 5 > / ~f Total Job Cost
tot. job time avq. equip. cost
unit cost = 5 > ~ = -- divided by ;=~~ ~~ ~ _ $ S'S, _°~>,:,-
total job cost total vol. or area B ~or.%sq;z-ft.