1. FCC Civil Engineering
John Osborne, Jo Stanyard, Matt Stuart(SMB - Site Engineering - FAS Section)
Cost & schedule Phase 3 - specification
10th May 2017

2. Contents Alignment position update Cross-section and design updates
Additional schedule constraints
FCC-ee machine requirements
FCC-eh machine requirements
Surface updates
Interaction point layout
Geological investigation planning
Spoil schedule
Elliptical v circular shaft
Shaft F options comparison
Inclined access tunnels
Mobile platform for installation of services
Junction cavern evaluation
39th I&O meeting –

3. Alignment update 39th I&O meeting – 19-07-17
An order has already been placed with GADZ to provide more geotechnical information on areas where the tunnel passes through the moraines.
39th I&O meeting –

4. Cross-section and design updates
Non-exhaustive list:
Tunnel cross-section updates
Beam dump design update
Alcove number refined
Partitions
IR update
39th I&O meeting –

5. Phase 3 - considerations
Additional schedule constraints
Take FCC and SPS operational schedules into consideration
Will an additional shaft near LHC connection be required for spoil removal?
FCC-ee machine requirements
Lattice file comparison under consideration, to be developed with integration
FCC-eh machine requirements
Under consideration at point L
Drawings and specification under development
Surface updates
Some surface site updates pending, to be developed by integration
Access to the sites to be evaluated and cost and schedule of any additional structures (roads, bridges, tunnels) to be included.
Interaction point layout
Consider variation where spacing between caverns is 10 m.
FCC experimental point.
39th I&O meeting –

6. Phase 3 - considerations
Geological investigation planning
Next step for the project will be geological investigations
Particularly interested in non-destructive testing
Initial step is a plan with a cost and schedule estimate for investigations
Spoil schedule
A schedule is required for the quantity, type and shaft location of spoil produced during excavation.
39th I&O meeting –

7. Phase 3 - considerations
Elliptical v circular shaft
Which is more efficient in terms of cost and schedule for the 18 m magnet lowering shafts.
Shaft F options comparison
Shaft F is unacceptably deep, a reasonable alternative to a 12 m diameter vertical shaft is required
Inclined access tunnels
Positions still under assessment
Work closely with the project schedule
Two variations included in the specification
Issue: Exceptionally deep shaft at point F
Possible Solutions:
Remove shaft and have a bypass tunnel
Replace with a shaft of a smaller diameter
Replace with an inclined access tunnel
39th I&O meeting –

8. Phase 3 - considerations
Mobile platform for installation of services in shafts
Examples from previous projects along with cost estimates.
Junction cavern evaluation
Dimensions of junction caverns to be revaluated to produce more streamlines baseline design.
39th I&O meeting –

9. Required for each draft
Timeline for Phase 3
Study to be continued with ILF Consulting:
First draft
November 2017
Second draft
January 2018
Final report
March 2018
Required for each draft
Report chapter
Cost Estimate
Schedule Estimate
Alignment position update
Yes
Baseline
Cross-section and design updates
Additional schedule constraints
FCC-ee machine requirements x
FCC-eh machine requirements
Surface updates
Interaction point layout
Geological investigation planning
Spoil schedule
N/A
Elliptical v circular shaft
Inclined access tunnels
Shaft F options comparison
Mobile Platform for installation of services
Junction cavern evaluation
39th I&O meeting –