Skip to main content

Advertisement

Springer Nature is making SARS-CoV-2 and COVID-19 research free. View research | View latest news | Sign up for updates

Table 3 Activities for fabricating the three sample spools

From: Resource-loaded piping spool fabrication scheduling: material-supply-driven optimization

Activity ID Activity name Labor Duration (min)
(a). fabrication activities for Spool 1
 A1 Fit 2″ elbow and 2″ flange 2 Fitters 30
 B1 Weld 2″ elbow and 2″ flange (sub1_1) 1 Welder 30
 C1 Fit the sub1_1 with 2″ pipe 2 Fitters 11
 D1 Weld the subassembly with 2″ pipe (sub1_2) 1 Welder 30
 E1 Fit sub1_2 with olet 2 Fitters 13
 F1 Weld sub1_2 with olet (sub1_3) 1 Welder 17
 G1 Fit two 6″ pipes together 2 Fitters 36
 H1 Weld two 6″ pipes together (sub1_4) 1 Welder 44
 I1 Fit sub1_3 and sub1_ 4 2 Fitters 24
 J1 Weld sub1_3 and sub1_4 1 Welder 57
(b). fabrication activities for Spool 2
 A2 Fit 6″ elbow with 6″ pipe 2 Fitters 41
 B2 Weld 6″ elbow with 6″ pipe (sub2_1) 1 Welder 68
 C2 Fit sub2_1 with 6″ pipe 2 Fitters 39
 D2 Weld sub2_1 with 6″ pipe 1 Welder 69
(c). fabrication activities for Spool 3
 A3 Fit 6″ hydro pipe and 6″ elbow 2 Fitters 12
 B3 Weld 6″ hydro pipe and 6″ elbow (sub3_1) 1 Welder 42
 C3 Fit 6″ elbow and 6″ pipe 2 Fitters 15
 D3 Weld 6″ elbow and 6″ pipe (sub3_2) 1 Welder 14
 E3 Fit sub3_1 and sub3_2 2 Fitters 18
 F3 Weld sub3_1 and sub3_2 (sub3_3) 1 Welder 12
 G3 Fit 6″ pipe and tee 2 Fitters 31
 H3 Weld 6″ pipe and tee (sub3_4) 1 Welder 56
 I3 Fit sub3_4 and reducer 2 Fitters 37
 J3 Weld sub3_4 and reducer (sub3_5) 1 Welder 46
 K3 Fit sub3_5 and 3″ pipe 2 Fitters 19
 L3 Weld sub3_5 and 3″ pipe (sub3_6) 1 Welder 15
 M3 Fit sub3_6 and 3″ Flange 2 Fitters 11
 N3 Weld sub3_6 and 3″ Flange (sub3_7) 1 Welder 130
 O3 Fit sub3_3 and 6″ pipe 2 Fitters 27
 P3 Weld sub3_3 and 6″ pipe (sub3_8) 1 Welder 52
 Q3 Fit sub3_7 and sub3_8 2 Fitters 29
 R3 Weld sub3_7 and sub3_8 1 Welder 80