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A GC needs to fill and compact a trench that has the following dimensions 150 x...

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Civil Engineering

A GC needs to fill and compact a trench that has the followingdimensions 150 x 50 x 1.5 ft.   The sub is going to use adump truck that can carry 12 CY, and travels at an average speed of40 mph. The borrow pit is located 45 miles from the constructionsite. The truck driver makes $50/hr and works 8 hours per day.Loading time for the truck is 30 minutes and unloading time is 5minutes. The sub has to rent the truck at $500 per day + a driver @$50/hour. The cost of soil $20 per BCY. The soil has a swell factorof 18% and a compaction factor of 12%.

How much will the driver cost?

Answer & Explanation Solved by verified expert
4.1 Ratings (675 Votes)
Step 1 Number of trips required to fill and compact the trench Volume of pit 150 50 15 ft3 11250ft3 41667 CY We need 41667 CCY to fill and compact a trench CCY compacted cubic yards Truck carries the load in LCYloose cubic yards Thus convert CCY to LCY to determine number of trips    See Answer
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