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 - SCRAPER WORK
TASK DESCRIPTION: T'oiozo~_rz~o+~ra.~ } h~c(r; y'i: hu r: a{t -
HOURLY EQUIPMENT COST:
Machine make and model C4f 6/S EL:~1`.':a attachments
D RA F~
adjusted Operator Cost Per Hour

shift
no. hours
per
day days
per
week base
rental
rate/hr.
operating
cost/hr base
wage
rate/hr
overtime
adjustment shift
premium
adj. total
equip.
cost/hr
t ~ S ~ 56.5'! ~ i:'-9~ ~~ Ig ~/ d~/~-~ N/A ~ `IS ~?
_
~-
iu~ai - D y~L /nr.
$ 45_d2 lhr. divided by % shifts/day = $ a S_~ Z average total equip. cost/hr,
MATERIAL €SYfAkTiTIES:
=~s'7
93 t3,~/i.-,-~x.~.~` BCY x /,~ s~,vell factor = ~ZB.
`Jerification r~ethod s) used a..,.,,.. ~,~ _(-;~, -;S'xSS~xS'~av~ 9~
HOURLY PRODIJLTION:
L C'!
Raui distance = z a o ft., return distance = Z o o ft., altitude = Ss~S ft.
Total resistance haul ~° roTlinq res. plus O ~ grade res. +or- =f ~ °,
dotal resistance {return):-r~
e rolling res. plus ,7 o grade r es. (+or-)= ~~~
_
Note: For grade resistance, ( +) =unfavorable, ~-favorable (downhill)
Cycle tine: aoad (b276 = 0.3 min„ 537D = 0.9 min „ 55 %^ = 1.0 min) _ ~9J min.
Hag] - see distance vs . time tables in Se ction VII = .3 5 min.
'^areuver and spread = _'•~ min.
Return -see distance vs. time tables in Section VII = ,Z 7 min.
total cycle time = % ~ Z•-tin./cvc'e
60 min./hr divided by Z_? ? minutes/cycle = ~ 2v S cycles/h r.
Jb LCY howl capacity (heaoed)x 12~; cycles /h r. =~3~.-rZ' LCY/h r. li~nad.j,)
'f?~..;LCY/h r. x .~2 job efficiency* ii_! altitude adj. =3c~r:LC'!/hr (adj.)
•average efficiency for all shifts utilized
Fleet oroduc*_ion = / no. scraper used x ;;g:;;; LCY/hr/scraper =zst-=; LCY/hr/flee±
JOS COST:
/, ' ~~ LCY divided by ~523_~~v LCY/h r. _ /. , ~ total job hours
rot al material vol. fleet prod.
$ _--_ ~ /h r, avg. scraper cost x %~ scraoerg used = $ " ~_ 3 2 fleet cost/hr
/ '~ - hrs x $ ~5.~ _ /hr. _ $ /,; '?;~ Total Job Cost
tota~job time hour y r eet cost
unit cost/LCY = $ .,.:~' divided by ~,~~ _ $ Z;~%' /LC'!
total ,}ob cost total material vol.