Caterpillar Performance Handbook, January 2017, SEBD0351-47

Trenching Production ● Excavation Volumes

Hydraulic Excavators

Swing Angle

Angle of Repose

H = max. reach at spoil pile ht.

Side Slope

7

Trench

Spoil Pile

ExcavationVolumes Per Meter or Foot of Trench Length

The following table provides a general guide to trench bottom width for various outside diameters of pipe.

Metric version Bank m 3 /meter = (Trench end area m 2 ) × (one m) Trench volume (Bm 3 /m) = 1 / 2 (A + C) × B Spoil pile volume (Lm 3 /m) = (Bm 3 /m) × (1.00 + % Swell) English version

Pipe Diameter TrenchWidth Pipe Diameter TrenchWidth mm ft/in m ft/in mm ft/in m ft/in 102 4" 0.49 1'7" 1524 5'0" 2.59 8'6" 152 6" 0.55 1'10" 1676 5'6" 2.80 9'2" 203 8" 0.61 2'0" 1829 6'0" 3.05 10'0" 254 10" 0.70 2'4" 1981 6'6" 3.26 10'8" 305 12" 0.76 2'6" 2134 7'0" 3.47 11'5" 381 15" 0.91 3'0" 2286 7'6" 3.69 12'1" 457 18" 1.03 3'5" 2438 8'0" 3.93 12'11" 533 1'9" 1.16 3'10" 2591 8'6" 4.15 13'7" 610 2'0" 1.25 4'1" 2743 9'0" 4.36 14'4" 686 2'3" 1.37 4'6" 2896 9'6" 4.54 14'11" 838 2'9" 1.58 5'2" 3048 10'0" 4.75 15'7" 914 3'0" 1.70 5'7" 3200 10'6" 4.99 16'5" 1067 3'6" 1.92 6'4" 3353 11'0" 5.21 17'1" 1219 4'0" 2.13 7'0" 3505 11'6" 5.43 17'10" 1372 4'6" 2.38 7'10" 3658 16'2" 5.64 18'6" NOTE: Trench widths based on 1.25 Bc + 1.0 where Bc is the outside diameter of the pipe in feet. Table courtesy of American Concrete Pipe Association

(Trench end area ft 2 ) × (one ft) ___________________________ 27

Bank yd 3 /foot =

Trench volume (BCY/ft) = (A + C) × B _____________ 27 Spoil pile volume (LCY/ft) = (BCY/ft) × (1.00 + % Swell) 1 / 2

Edition 47 7-261