Page 61 - Pipeline Rules of Thumb Handbook

48 Pipeline Rules of Thumb Handbook

The arc subtended for any angle is directly proportional to
radius:

1 inch 0 7432 inches
.
=
24 inches Arc
=
.
Arc = 0 7432 ¥ 24 17 13 16 ≤
Average pipelay table—Underground

Linear feet of pipelay per ten (10) hour day in trench in level, rock-free terrain

PIPE WALL THICKNESS IN INCHES
Nominal 0.000 0.251 0.376 0.501 0.626 0.756
Pipe through through through through through through
Size 0.250 0.375 0.500 0.625 0.750 1.000

4 10,800 10,500 10,300 — — —
6 9,600 9,400 9,210 — — —
8 9,120 8,900 8,720 8,550 — —
10 8,900 8,760 8,580 8,410 — —
12 8,600 8,400 8,230 8,070 7,910 —
14 8,400 8,230 8,160 8,000 7,840 —
16 8,000 7,840 7,680 7,530 7,380 7,230
18 7,800 7,640 7,500 7,350 7,200 7,050
20 7,400 7,250 7,100 6,960 6,820 6,680
24 — 6,600 6,470 6,340 6,210 6,080
30 — 6,000 5,880 5,760 5,640 5,530
36 — — 5,400 5,300 5,200 5,090
42 — — 4,800 4,700 4,600 4,500

Productivity will vary where different types of terrain or rock are encountered.
Above footage is based on installing double random joints of pipe.