1. FCC-ee MDI Civil Engineering update
J. Osborne, J. Stanyard

2. Status of Civil Engineering Study
Ongoing work:
Working in collaboration with Integration to fix all dimensions for CDR
Finalising alignment location
Phase 3 of cost & schedule study with ILF Consulting engineers
CDR writing has started
Starting with FCC-hh
FCC-ee amendments to the CDR will start before the end of 2017

3. Detector cavern LxWxH [m] Technical galleries [km]3)
Dimensions
Point
Function
LSS length [km]
Depth
[m]
Detector shaft Ø [m]
Access shaft Ø [m]1)
Detector cavern LxWxH [m]
Service cavern2)
LxWxH [m]
Technical galleries [km]3) A
Main experiment
1.4
166
15; 10 18
66x35x35
1XXx25x15 ? B
Side experiment; injection
123 12
66x30x35 C
Mid-arc
technical point -
130
XXx25x15 D
Beam extraction
2.8
240
± 1.4 E 79 F RF
558
± 0.7 G
259 H
Momentum collimation
230 I
193 J
Betatron collimation
237 K 51 L
175

4. Alignment location

5. Specific FCC-ee enlargement

6. Specific FCC-ee enlargement
Cross sec 1
Cross sec 2
Cross sec 3
Cross sec 4
Section 2
300m
Section 3
200m
Section 4
400m
700m
900m
1.1km
Regular arc
arc
[m]
interaction point
FCC-ee enlargement
5100
4500
6500
Section 1
8000
17800
15300
10900
Data: K. Oide (FCC-ee), A. Langner (FCC-hh = FCC-ee booster)
Enlargement steps: J. Stanyard, M. J. Stuart
(preliminary)

7. Specific FCC-ee cross-sections
Demineralized water
Smoke extraction
Cable trays
Cable trays
Leaky feeder
Raw water/
firefighting
Booster ring
Electrical box
Compressed air
First aid
equipment
FCC-ee ring
Fresh air duct
Drain

8. Specific FCC-ee cross-sections

9. Specific FCC-ee cross-sections

10. Specific FCC-ee enlargement construction
Two options for construction of enlargement:
Excavate regular cross-section tunnel through to caverns and then enlarge with a roadheader.
Stop the TBM excavation 1.1 km before cavern and excavate all of the enlargement with the roadheader.
Currently appear to be similar in terms of cost and schedule.

11. Specific FCC-ee interaction region schematic