report on behalf of clic civil engineering and services (ces) wg

John Osborne : GS-SEM Civil Engineering18 May 2009

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

CTC 18 May 2010

CES studies for CDR :

1. Tunnel cross section2. Injection Complex 3. BDS Layout4. Experimental Area Layout5. Summary


1.Tunnel cross section

John Osborne : GS-SEM Civil Engineering18 May 2009 3

4.5m tunnel for CDR as agreed in 2009


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 ?


Revised 4.5m cross section


Access to Drive beam dump


Access to LHC Dumps at Point 6


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


Possible 5.2m cross section for CLIC


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


2. Injection Complex :Input mainly from :L.RinolfiB.JeanneretF.Stulle


Injection Complex 2009 Layout


Injection Complex 2010 Layout

• 1.1km extra tunnel for turnarounds

• 500m extra for CR, DR• Injection cut and cover

tunnels lengths increased to 1.4km (from 1km)

‘turnaround’ is now a horizontal cut/cover design


‘Spiral descents’ removed


Surface tunnels / halls for Injection Complex2010 Layout : Surface buildings added


CLIC Damping Rings schematic layout

e+ Damping Ring

e- Damping Ring

e- Pre-damping Ringe+ Pre-damping Ring

e+ linac to PDR transfer line

e- linac to PDR transfer line

e+ PDR to DR transfer line

e+ DR to Booster linac transfer line

e- PDR to DR transfer line

e- DR to Booster linac transfer line

205 m

205 m

80 m

80 m

Dump

157 m

64 m

Damping rings still to be finalised


ON - HOLD


3. BDS Layout

Input mainly from :Rogelio Tomas GarciaEdda Gschwendtner


Main Beam Dumps


Tune-Up Dumps added


4. Experimental Area Layout


CLIC Detector hall layout developed by :A.GaddiH.GerwigA.Herve

CES will now use this as starting point for CE & services design, including cost estimates


Machine By-Pass added

Survey gallery added

Emergency escape tunnel

Better to delete cavern ‘technical alcoves’

Gantry crane capacities to be determined

CV being consulted about requirements


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

John Osborne : GS-SEM Civil Engineering18 May 2009Overall layout updated (full symmetry)


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


BACK-UP SLIDE


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.

report on behalf of clic civil engineering and services (ces) wg

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