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n earthwork contract requires to cut and move excavated rocks. The site is a typical limestone...

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Civil Engineering

n earthwork contract requires to cut and move excavated rocks.The site is a typical limestone rock formation in a cut section,which is 15,000 ft long, 85 ft wide, and 3 ft deep. Seismographictests indicate a seismic wave velocity of 5,000 fps for the rocklayer material. The contractor proposes to rip the rock with a370-hp crawler tractor. Answer the following questions.

As a Construction Manager for this site development project,prepare detailed cost estimate for the project, and biddocuments.

      Assume 10% time value cost ofmoney, bonds, insurance, and storage over total direct cost,contingency at 2% of total direct cost, indirect overhead cost at5% of total direct cost (additional on top of the equipment andoperator costs), and 10% fee (on subtotal total of direct andindirect cost).

Answer & Explanation Solved by verified expert
3.9 Ratings (540 Votes)
Detailed solution is as followsProductivityFor the given seismic wave velocityie 5000 fps and using 370hp    See Answer
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