AGTEK Cut / Fill Factors
AGTEK Cut / Fill Factors
(OP)
Is there any consensus industry standard cut fill factors for AGTEK? I have worked for two companies using AGTEK. The first used Cut (1.00) and Fill (1.15). My current company has been using Cut (1.13) and Fill (1.38) which I feel is a bit on the heavy side. What is everyone else out there using?





RE: AGTEK Cut / Fill Factors
What I try to do is pick the brains of grading contractors and soils engineers and get them to describe what they have experienced in the field and over time you see a pattern that works for certain type soils in certain areas. It is definitely not the same everywhere. Most soils engineers will not commit to an exact factor in their soils reports because of the variety of soil characteristics. Different strata layers have different reactions to excavation & compaction so trying to be exact with factors is a monumental task to ask from them.
The one thing that is certain is never assume the same factors will apply everywhere. Talk to people who have had to deal with shrinkage and swell in the area you are working. Also, add disclaimers to your work documents to protect you against earthwork imbalances due to "factors" beyond your control.
RE: AGTEK Cut / Fill Factors
Is the the unit cost for hauling excess based on 10 CY per tri-axle load? Is it more? less?
The shrink/swell factor of the material for import should factor into the pricing quantities as well. Each company uses their historical experience to fit their pricing criteria.
I have heard of a site contractor who took the SF of fill area x .17(2 inches), divided by 27 and added that yardage to his fill amount. He then added 15% to the total. This allowed for proofrolling at fill areas.
I have used 1.10 for cut, 1.25 for rock cut and 1.15 for fill. Currently, I use the neat volumes and adjust my unit pricing based on experience.
Note that in building projects, the majority of the costs are in rock removal, paving and pipe work. On large site projects, a few thousand yards difference in earthmoving is insignificant.
Of course, on primarily earthmoving projects, that is not the case. Then perhaps, the soil properties need to be researched for a competitive edge.
RE: AGTEK Cut / Fill Factors
RE: AGTEK Cut / Fill Factors
I have tracked all T&M earthwork for several construction projects over the last two years. For estimates in the 1,000 c.y. to 5,000 c.y. range, I am always within a truckload or two of dirt. In the 100,000 c.y. range, I get within 5% of estimates.