Laserfiche WebLink
<br />EARTHWORK ESTIMATING - RIPPING WORK <br />TASK DESCRIPTION: ~u ~~ ~~ <br />HOURLY EQUIPMENT COST: <br />Machine make .and model ~~''L attachments: ~ ~~~ <br /> adjusted Operator Cost Per Hour <br /> hours days base base s ift total <br />shift per per rental operating wage overtime premium equip. <br />no. da week rate/hr. cost/hr rate/hr adjustment adj. cost/hr <br />1 N/A <br />z ~~ <br />3 ~~ ~~ <br />coca i = 5 J Stf ~~ <br />$ /hr. divided by shifts/day = $ average equipment cost /h r. <br />MATERIAL QUANTITIES: <br />Volume Method (bank material or rock): BCY (total to be ripped) <br />type of material se~zmic ve ocity = fps <br />Area method (compacted fills, pavement) _ /s a.e~ sq. ft. (total area) <br />ripping depth required to alleviate compaction = ~ S/ inches <br />Verification method(s) used <br />HOURLY PRODUCTION: <br />Volume method (for DRL, D9L, and D10 dozers w/single shank rippers only): <br />BCY/hr from production graphs in Sec. VII x job efficiency (avq. far <br />a shi s x altitude adj. = BCY/hr~j sted oroduction <br />Area method (for dozers, track loaders or graders w/multi-shank rippers) <br />07. sq. ft./hr (from oroduction tables in Section VII) x ,f 3 job <br />e iciency avg. for all shifts) x / altitude adj. _ ~_o u sq. ft./hr <br />JOB TIME: <br />Volume method: BCY divided by BCY/hr = hrs <br />o ma vo ume a3j: pry o J~'o6-fime <br />Area method: _~~ sq. ft. divided by 2 sq. ft/hr = 7~~~ hrs <br />total area a~J. proms o J~f-'oTi Elms <br />JOB COST: <br />7.S hrs x $ /y~.3y /hr = $ ~ /// 1 Total Job Cost <br />tot. job time avg. equip. cost <br />unit cost = $ ///~ divided by / S = S <br />total job cost total vol. or area 6 or sq.rft-- <br />_ t <br />