Question
A project involves excavation of a 200 ft by 200 ft raft foundation to a depth...
A project involves excavation of a 200 ft by 200 ft raft
foundation to a depth of 5 ft, with the earth to be transported up
to 40 yards from the edge within 14 days.
Estimate the total cost for excavation considering Manual
operation and the following;
Man hours/unit: 0.05 hours/unit
Assume 8 hour/day of work
Cost of labor/day: $120
1.(b) How many workers do you need to complete work in 14
days?
Estimate the total cost for excavation considering Mechanical
Operations with 1 excavator and 2 tippers and the following;
2 operators per excavator and 2 operators per truck
Productivity of equipment: 900 ft3/hour
Assume 8 hour/day of work
Cost of excavator/day: $2000
Cost of tipper/day: $900
Cost of labor/day: $200
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