The 'mass haul diagram' is used in earthwork to:
Choose the correct answer
Only measure total cut and fill quantities
Determine economic haulage, free haul distance, borrow/waste locations, and minimise earthwork cost
Only plot road profile
Estimate structural loads on pavement
Correct Answer
B. Determine economic haulage, free haul distance, borrow/waste locations, and minimise earthwork cost
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Mass haul curve: cumulative algebraic sum of cut (positive) and fill (negative) plotted against distance. Used to: determine haulage (distance moved), economical lead (free haul distance beyond which borrow is cheaper), identify waste and borrow areas. Rising curve = cut; falling = fill. Where curve crosses baseline = balance point. Minimises earthwork cost.
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