DRAFT

K. Fant 2/25/99

Main Linac Installation Model Assumptions:

  1. All parts and components are available for installation when needed.
  2. Labor costs are based on current (1998) rates used in SUCCESS.
  3. Installation work includes labor for parts to be transported from storage to staging area and onto their final installation location. It includes all cabling, magnet, girder, waveguide, klystron, modulator, control and power racks, connection of cables and water to systems, alignment (ref. layout through final), area coordinator, removal and reinstallation of faulty components, assembly, vacuum pump down, system check out.
  4. The schedule is divided into subgroups to maximize number of crews working in parallel. The subgroups are Cable plant, Combiner/Turret, Klystron/Modulator Assembly (RF), DLDS waveguide (RF), Vacuum roughing (NonRF), Quad, Girder Assembly, Girder feed Assembly, Sector Pump down, Sector Checkout. All subgroups except Combiner/Turret and Klystron/Modulator Assembly (RF) require access to the tunnel.
  5. Schedule assumes a 16 hour work day, 5 days a week. Each task assignment assumes an early and a late crew working continuously to completion. For example, if a task needed 16 hours to complete the duration would be 1 day, each crew working 8 hours on the task.
  6. Crew sizes, task identification and linkages, durations for tasks were entered based on inputs from responsible parties where available, other input were "educated" guesses.
  7. This schedule assumes a parallel effort where possible. Tasks are linked in series only when required. This means that there may be the following crews in a sector simultaneously.
    8. Maximum Total Crew Size (Per RF Sector)
    Crew Type Size
    Alignment 3
    Area Coordinator 4
    Cable 26.5
    Equipment Operators 8
    Iron Workers (installation) 6
    Plumbers 6
    Mechanical Tech (misc.) 4
    Total Personnel Count 57.5
    Maximum Total Crew Size (Per Non RF Sector)
    Crew Type Size
    Alignment 3
    Area Coordinator 3
    Cable 16.5
    Equipment Operators 2
    Iron Workers (installation) 4
    Mechanical Tech (misc.) 3
    Total Personnel Count 31.5

    In Tunnel Housing Only (Per RF Sector)

    Crew Type  

    Size

    Area Coordinator  

    1

    Cable  

    5 (assume 5 working above tunnel)

    Equipment Operators  

    4

    Iron Workers (Mech Tech) 

    3

    Plumbers  

    3

    Replacement  

    4

    Restock/Cleanup  

    1

    Total Personnel Count   

    21
  8. No effort has been made to optimize or level crew usage.
  9. Schedule is established for one RF sector and one Non RF sector. Duration for installation of the Non RF Sector is 102 working days and for the RF Sector is 129 working days. Assumption is made that the labor is constant for any sector, whether done one or more at a time. The total duration for the project (both e+ and e- linacs) is found to be (102+129)*46=10626 working days. If we want to install in 5 years (assume 246 working days/year, 1230 working days) we will need to continuously be working on nine sectors at a time.
  10. Costs for equipment has not been estimated and is being set at 25% of the labor costs for a 5-year installation schedule.
  11. Transportation of equipment, restocking and removal of damaged equipment is presently scheduled to occur in the first or second shift, but are not critically linked in most cases. They could be moved to a third shift to alleviate congestion in tunnel.
  12. If access is assumed to be every three sectors. (Still looking at max and min distances between access penetrations)

    13.  

  13. Work efficiency is assumed to be .75, or a 6 hour work day , calculated as follows:

    14. % nonworking time/year (sick/vac)

    16/246 (days)

    6.5%

    % nonworking time/day (breaks, etc)

    .75/8 (hrs)

    9.4%

    % nonworking time/day (tunnel environment)

    .75/8 (hrs)

    9.4%

    Total   25.3%
  14. Tunnel depth is assumed to be 60 feet below surface.
  15. Alcove space for temp storage, is it adequate?
  16. No costing included yet for rack installation
  17. No costing included yet for diagnostics section
  18. No costing included yet for Pre-installation tasks, such as installation drawings, writing specifications and procedures, for personnel training, or for fit checking
  19. Components and consumable equipment is stored in temporary storage facilities within close proximity to tunnel access. Temporary storage containers could be cargo containers 40 feet by 20 feet by 10 feet.
  20. Installation is divided into subsection based upon geographic location.
  21. Klystron installation includes klystron 2 pack assembled in modulator, tested with a klystron combiner, lead sheilding attached. Ready to hook up to gate valve. Isolation valves available for roughing out.
  22. No time included for installation of PPS or MPS systems.
  23. System checkout included RF processing(conditioning) in terms of manpower, but all checkout items are scheduled in parallel, even though it is known that they can’t be done in parallel.