Page 268 - Moving the Earth_ The Workbook of Excavation

PONDS AND EARTH DAMS

6.4 THE WORK

FIGURE 6.2 Making the excavation.

Cut and Pile Relationships. Figures 6.3 and 6.4 show some of the relationships between the cut
and the spoil piles. The diagrams show a machine with a 40-foot boom, digging beside and behind
itself, and have been simplified by assuming a constant dumping height of 12 feet; an increase in
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volume of the spoil of 20 percent; nearly vertical slopes in the cuts; a 1-on-1 ⁄2 slope on the piles,
and soft soil, permitting deep digging. Figures on the piles show cross-sectional areas. Muddy
conditions cause piles to be lower and wider, reducing the width of cuts.