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 - HYDRAULIC EXCAVATOR~FRONT SHOVEL WORK
r~~
~ ~ ~~.
1'a s f< '=
TASK DESCRIPTION: ~L // /I/ 1 /
~'-!'f . ac~~x S TL'V'k) i L0/) '` C( 1'Y'/,C. SOLO T~ a ~ 1~'~: [~ r S _
HOURLY EQUIPMENT COST: // ~//
Machine make and model l.0 T ~ Z S attachments: ~on e
adjusted Operator Cost Per Hour

shift
no. hours
per
da days
per
we2k base
rental ~
rate/h r,
operating
cost/hr base
wage
rate/hr
overtime
ad,iustment shift
premium
adj. total
equip.
cost/hr
1 ~3-8$ l c 19.0/ N N/A 8
2 - - - '~_
3 - ~~ ~~
$ 7 $.~7 fhr. divided by ~ shift8/day = $ ~/ S.3~f average equipment cost /h r.
MATERIAL QUAIITITIES:
Sank volume = ctj?c BCY or CCY x (, y6x' swell factor = S /cj~, S LCY
Yerificatian imet od s used .~_t_f_ c - v- ~. s3r oL-...G '=4 c
rr.~:,,, .w~ics it<7- ,- ~ "~ Car !'/a ~..,r _ lv¢1`, Fn caw r y r/'A :v , ~
(~ 4 L~U~/r"<f~~ - •74 I = 1.16 ta,¢~c i.
HOURLY RRODUCTION:
Cvcle Time = / j seconds/cycle (from cycle time table in Section VII)
Rated !bucket payload {from Section III) _ /, 3 ~ LCY (nominal heaped)
Tyne of material ~[ef ~,c;,,of:_-i n~•;T; altitude = ,~,, ft.
Bucket fill factor from fill factor table in Section VIII = ,v~iQ~
/. <' LCY x /, %/~- _ /, ~ g LCY
rated payload fill factor adjusted payload
3,600 seconds/hr divided by / j seconds/cycle = //.~ cycles per hour
LCY/hr (unadjusted):
/.3 ~ adjusted bucket payload x L /. ~ cycles/hr = l Q 1, i z LCY/hr
Adjusted hourly production:
;_?~ ' ; LCY/hr x ° job efficiency* x ~/~/~ altitude adj. = Fu~,cc LCY/hr
*average for ail shifts utilized
JOB COST:
": - LCY divided by Z ~. ~ C LCY/hr = 7 /, ~{ 7 hrs
tots materza vo ume a ,7. pro tota~,7~time
hrs x $ ~8-3~ /hr = $ (; ~;~? Total Job Cost
tat. job time avg. equip. cost
unit cost/LCY = $ ~ ~?Y", S'?, divided by ~ (a`?,C cC~' _ $ 3z? /LCY
total job cost total material vol.