A contractor has to move 15 300 Bank m 3 of wet sandy material in rear dump
Question:
A contractor has to move 15 300 Bank m3of wet sandy material in rear dump trucks, which will be loaded by an excavator. Average face depth will be 2.4 m with 60-90 degree average swing angle. Ten days are available to do the work. The Contractor plans to work 10 hours/day and estimates a 50 min. work hour (83% job efficiency). There are two excavators that could be made available to do the work: Excavator A (320) with 1.0 m3bucket or Excavator B (336) with 1.9 m3bucket.
If the swell factor is 25%, calculate the total volume of loose material to be moved.
Calculate the required productivity.
Propose a fill factor and justify it.
Estimate the actual bucket payloads (actual amount of material in the bucket).
Could this job be done with either machine or will the excavator B have to be used?
Expert Answer:
Wet Sandy Material Excavation 1 Total Loose Material Volume Bank Volume wet dense 15300 m Swell Factor 25 Loose Material Volume Bank Volume 1 Swell Fa... View the full answer
