2.2_Site_Work%20rev

2.2_Site_Work%20rev - Division2 MoreFunwithDirt...

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Division 2  More Fun with Dirt
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Key to Equipment Selection Establish duration for project/work Match equipment ability to job – depth  of footer or amount of dirt that needs to  be moved Determine site logistics Calculate cycles in terms of time to best  match equipment.
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Key to Equipment Selection Excavator can move 21 cubic yards of  dirt an hour. Trucks can hold 7 cubic yards of dirt –  takes 20 minutes to fill a truck. Dump site 20 minutes away – 40 minute  round trip. How many trucks do you need to  continually work the excavator?  How  many trucks do you need at start of job? 3? 1, 2, or 3?
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Matching equipment Clock at 0: Fill truck one Clock at 20: Fill truck two, truck one  travel to dump Clock at 40: Fill truck three, truck two  travel to, truck one travel return Clock at 60: Fill truck one 
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Grading Review Subgrade for slab-on-grade (SOG)  construction must include: Necessary bearing (density test) Control for ground moisture Establish proper slab elevation
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Grading Review Necessary bearing Foundations are designed to support  design load of buildings.   Typical commercial construction consists  of spread footers with increased bearing  points to support column loads.
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This note was uploaded on 02/12/2010 for the course BCN 1210 taught by Professor Fobair during the Spring '09 term at University of Florida.

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2.2_Site_Work%20rev - Division2 MoreFunwithDirt...

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