Report on behalf of CLIC Civil Engineering and Services (CES) WG

1. CTC 18 May 2010 CES studies for CDR : 1. Tunnel cross section 2. Injection Complex 3. BDS Layout Experimental Area Layout Summary Report on behalf of CLIC Civil Engineering and Services (CES) WG

2. 1.Tunnel cross section

3. 4.5m tunnel for CDR as agreed in 2009

4. Drawbacks with 4.5m tunnel identified in 2009 • Positioning of electronic racks not ideal • Solution : Re-position onto tunnel floor, but possibly means deleting safety barrier • Difficult to access ‘tunnel wall’ side of modules • Solution : remove entire module for access ? • Access to Drive Beam dumps • Solution : Local Tunnel enlargement to allow ‘ladder’ access (see next slides) • Impact from vibration from floor embedded pipes • Solution : Further studies in TD Phase • Reduced space due to transversal ventilation and perhaps not sufficient cooling power • Solution : Study longitudinal ventilation system during TD Phase • No space for vehicle powering ‘monorail’ and integration conflict • Inductive powering for vehicle ?

5. Revised 4.5m cross section

6. Access to Drive beam dump

8. Access to LHC Dumps at Point 6

9. Cross section for ILC Europe (CERN) 5.2m diameter for Kly-Cluster

10. Possible 5.2m cross section for CLIC

11. ‘Metro standard’ 5.6m tunnel +150MCHF : Proposed at CTC May 2009

12. 2. Injection Complex : Input mainly from : L.Rinolfi B.Jeanneret F.Stulle

13. Injection Complex 2009 Layout

14. Injection Complex 2010 Layout ‘turnaround’ is now a horizontal cut/cover design • 1.1km extra tunnel for turnarounds • 500m extra for CR, DR • Injection cut and cover tunnels lengths increased to 1.4km (from 1km)

15. ‘Spiral descents’ removed

16. Surface tunnels / halls for Injection Complex 2010 Layout : Surface buildings added

17. CLIC Damping Rings schematic layout Damping rings still to be finalised e- DR to Booster linac transfer line Dump 205 m 80 m e- Damping Ring e- PDR to DR transfer line e+ linac to PDR transfer line 157 m e- Pre-damping Ring 64 m e+ Pre-damping Ring e- linac to PDR transfer line e+ PDR to DR transfer line 205 m 80 m e+ Damping Ring e+ DR to Booster linac transfer line

18. ON - HOLD

19. 3. BDS Layout Input mainly from : Rogelio Tomas Garcia EddaGschwendtner

20. Main Beam Dumps

21. Tune-Up Dumps added

22. 4. Experimental Area Layout

23. CLIC Detector hall layout developed by : A.Gaddi H.Gerwig A.Herve CES will now use this as starting point for CE & services design, including cost estimates

24. Machine By-Pass added Emergency escape tunnel Gantry crane capacities to be determined Better to delete cavern ‘technical alcoves’ Survey gallery added CV being consulted about requirements

25. ILC 3d models developed at CERN using CATIA : CLIC models to follow once draughtsman is identified

26. Overall layout updated (full symmetry)

27. 5. Summary • Will continue to try and ‘freeze’ CE layouts at monthly CES meeting. Next major issue is amount of space required for Power Converters. • Martin Gastal is gathering input from other technical services for experimental hall (CV,EL etc) • Costing for CDR required for all technical infrastructure by September with assistance from Amberg consultants (same CE consultants for ILC) • Draft layout for CDR Chapter ‘Civil Engineering and Services’ has been submitted to Hermann

28. BACK-UP SLIDE

29. CTC 19 May 2009 Summary • With a 4.5m diameter tunnel, it appears difficult to accommodate all equipment • 5.6m recommended by CES working group • More TBM’s of this diameter available will help with Project planning • Reduction in other costs due to more additional working space ? Space for future requests…. • Additional CE cost in the region of 150M CHF Barcelona Metro under construction 6.6m machine external, inner 5.8m. With 0.1m tolerance on radius = 5.6m internal diameter.