Vertical Facility Engineering

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Vertical Facility Engineering

• D. Lee Petersen
• CNA Consulting Engineers

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Topics

• Possible experiments
• Planning issues
• Major design issues
• Engineering scope

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Possible Vertical Space Experiments

• Atom interferometric gravity wave detector
• Cloud Physics
• Diurnal Rotation
• NNbar

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Planning Issues

• Parallel or sequential use
• Experiment evolution
• Accommodate 2nd, 3rd and nth generation
  experiments
• Synergies
• Shared development
• Shared infrastructure
• Conflicting needs or side effects

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Major Design Activities

• Existing facility assessment
• Shafts
• Upper and lower campuses
• Existing infrastructure
• Systems
• Constructed facilities
• New excavations
• Structures
• Nuclear safety
• Fire and life safety
• Systems
• Special features

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Engineering Activities

• Develop concept narratives drawings for all
  experiments
• Develop project WBS for capital costs f.a.e.
• Prepare design criteria f.a.e.
• Identify assess candidate vertical facilities

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Engineering Activities

• If no suitable existing facility, identify
  candidate site for new facility
• Evaluate shaft construction shaft outfitting
• Conceptual design of tunnels, caverns, etc.
• Conceptual design of project systems

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Engineering Activities

• Risk assessment
• Address fire/life safety aspects of conventional
  facilities
• Develop budget estimates, design/construction
  schedules

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1. Define concepts

• Develop concept narratives and concept drawings
  which depict the general arrangement of the
  campuses, the shaft and shaft details
• For all experiments

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2. WBS

• Develop project work breakdown structures (WBS)
  for capital costs. The WBS will include major
  project components identified during the study,
  including major systems necessary to support
  experiment occupancy and operations. Major WBS
  headings will include
• Surface utilities requirements and experiment
  support facilities
• Surface campus
• Vertical shaft
• Underground campus
• Access tunnels and shafts
• Project systems
• Project outfitting

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3. Design Criteria

• Prepare design criteria using input from the
  scientific collaborations
• Design criteria
• Communicate project requirements
• Guide development and comparison of project
  alternatives
• Address the functionality of project components
  and specific values of design parameters

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4. Candidate Facilities

• Identify assess candidate vertical facilities
• Shaft geometry
• Magnetic field
• Temperature
• Other characteristics
• If no suitable existing facility, identify
  candidate site for new facility

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5. Shaft Design

• Existing or new shaft
• Evaluate shaft rehabilitation or new construction
• Shaft outfitting for the experiments

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6. Tunnel Cavern Design

• Conduct conceptual design of access tunnels,
  caverns and other project components
• Includes intermediate access points

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7. System Design

• Ventilation
• Exhaust
• Cooling systems
• Plumbing systems
• Electrical power
• Lighting
• Fire alarm

• Utility water systems
• Process utility systems
• Clean space systems
• Safety ventilation systems
• Fire protection
• Security
• Communications

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8. Fire and Life Safety

• Address fire and life safety aspects of project
  conventional facilities, especially underground

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9. Risk Assessment

• Develop a risk assessment plan
• Develop a risk register
• Vertical facility in general
• Specific to each experiment
• Use RR to develop cost and schedule contingencies
• Update as the project develops

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10. Cost Schedule

• Develop project budget estimates, incorporating
  contingencies from risk assessment
• Design and construction schedules with
  contingencies

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Questions?
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AI facility requirements

• Power 10 kw
• 1 deg C temp control
• 15x5x5 m at each end
• 30 cm dia vertical shaft, 10-6 torr
• Class 10,000 in atom/laser area
• Instrumentation bay, two racks
• Ultra low vibration, no moving masses in 1 Hz
  band
• Shaking masses at same frequency, 100s of meters
  offset necessary
• Pumps, motors, fans are an issue
• Maybe place some pumps at midheight
• As long as possible