Business, 09.10.2019 00:00 ryanmorse01

Two choices for borrow soil are available. borrow a borrow b unit weight in place of borrow site 120 lbf/ft3 120 lbf/ft3 unit weight in transport 95 lbf/ft3 - void ratio in transport - 0.92 water content in place of borrow site 15% 10% cost to excavate (in place) $0.20/yd3 $0.10/yd3 cost to haul (transport) $0.30/yd3 $0.40/yd3 specific gravity of solids 2.7 2.7 maximum proctor dry unit weight 110 lbf/ft3 110 lbf/ft3 it will be necessary to fill a 300,000 yd3 depression, and the fill material must be compacted to 95% of the standard proctor (maximum) density. a 10% final moisture content is desired in either case. the unit weight of water is 62.4 lbf/ft3. (a). what would be the excavated volume of borrow from site a in place? (b). what would be the volume of borrow from site b in transport? (c). what soil would be cheaper to use?

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