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

Activity ID | Activity name | Labor | Duration (min) |
---|---|---|---|

(a). fabrication activities for Spool 1 | |||

A_{1}
| Fit 2″ elbow and 2″ flange | 2 Fitters | 30 |

B_{1}
| Weld 2″ elbow and 2″ flange (sub1_1) | 1 Welder | 30 |

C_{1}
| Fit the sub1_1 with 2″ pipe | 2 Fitters | 11 |

D_{1}
| Weld the subassembly with 2″ pipe (sub1_2) | 1 Welder | 30 |

E_{1}
| Fit sub1_2 with olet | 2 Fitters | 13 |

F_{1}
| Weld sub1_2 with olet (sub1_3) | 1 Welder | 17 |

G_{1}
| Fit two 6″ pipes together | 2 Fitters | 36 |

H_{1}
| Weld two 6″ pipes together (sub1_4) | 1 Welder | 44 |

I_{1}
| Fit sub1_3 and sub1_ 4 | 2 Fitters | 24 |

J_{1}
| Weld sub1_3 and sub1_4 | 1 Welder | 57 |

(b). fabrication activities for Spool 2 | |||

A_{2}
| Fit 6″ elbow with 6″ pipe | 2 Fitters | 41 |

B_{2}
| Weld 6″ elbow with 6″ pipe (sub2_1) | 1 Welder | 68 |

C_{2}
| Fit sub2_1 with 6″ pipe | 2 Fitters | 39 |

D_{2}
| Weld sub2_1 with 6″ pipe | 1 Welder | 69 |

(c). fabrication activities for Spool 3 | |||

A_{3}
| Fit 6″ hydro pipe and 6″ elbow | 2 Fitters | 12 |

B_{3}
| Weld 6″ hydro pipe and 6″ elbow (sub3_1) | 1 Welder | 42 |

C_{3}
| Fit 6″ elbow and 6″ pipe | 2 Fitters | 15 |

D_{3}
| Weld 6″ elbow and 6″ pipe (sub3_2) | 1 Welder | 14 |

E_{3}
| Fit sub3_1 and sub3_2 | 2 Fitters | 18 |

F_{3}
| Weld sub3_1 and sub3_2 (sub3_3) | 1 Welder | 12 |

G_{3}
| Fit 6″ pipe and tee | 2 Fitters | 31 |

H_{3}
| Weld 6″ pipe and tee (sub3_4) | 1 Welder | 56 |

I_{3}
| Fit sub3_4 and reducer | 2 Fitters | 37 |

J_{3}
| Weld sub3_4 and reducer (sub3_5) | 1 Welder | 46 |

K_{3}
| Fit sub3_5 and 3″ pipe | 2 Fitters | 19 |

L_{3}
| Weld sub3_5 and 3″ pipe (sub3_6) | 1 Welder | 15 |

M_{3}
| Fit sub3_6 and 3″ Flange | 2 Fitters | 11 |

N_{3}
| Weld sub3_6 and 3″ Flange (sub3_7) | 1 Welder | 130 |

O_{3}
| Fit sub3_3 and 6″ pipe | 2 Fitters | 27 |

P_{3}
| Weld sub3_3 and 6″ pipe (sub3_8) | 1 Welder | 52 |

Q_{3}
| Fit sub3_7 and sub3_8 | 2 Fitters | 29 |

R_{3}
| Weld sub3_7 and sub3_8 | 1 Welder | 80 |