follow up on option 3c: new evacuation gallery work method, schedule, cost, implications for cms
DESCRIPTION
Follow up on option 3c: New Evacuation Gallery Work method, Schedule, Cost, Implications for CMS. Contributions from. BE -ABP -ASR -BI -CO. DG -RP. GS -SEM -ASE. IT -CS. PH -CMX. TE -CRG -EPC -MPE. EN -CV -EL -MEF - PowerPoint PPT PresentationTRANSCRIPT
Contributions fromBE -ABP -ASR -BI -CO
DG -RP EN -CV -EL -MEF -STI
GS -SEM -ASE
IT -CS PH -CMX TE -CRG -EPC -MPE
05/11/2010
Follow up on option 3c: New Evacuation GalleryWork method, Schedule, Cost, Implications for CMS
Method of work and draft schedule→ Week 1 & 2
→ CE set up time - impact on CMS only→ Includes metallic platform installation, ventilation system for dust extraction,
tooling installation, temporary power cables, dust screen.
05/11/2010
Loading platform
Method of work and draft schedule→ Week 1 & 2
→ Removal of services in UJ56 – “Eau Brute” water piping (~1week if prepared), CV equipment (1week), BRAN gas bottles…
05/11/2010
→Week 3 & 4: →Excavation phase – Impact only on CMS – no work on the –Z end of
the UXC55→Removal of services in UJ56 – water piping, CV equipment…
05/11/2010
Method of work and draft schedule
To UXC55
→Week 5& 6: →Excavation phase – Impact both on CMS and UJ56
05/11/2010
Method of work and draft schedule
To UXC55
Second crew
→ Week 7,8,9 & 10: →4 weeks of lining - impact on both CMS and UJ56
→Shuttering, concrete pipe through the PX56, paint…
05/11/2010
Method of work and draft schedule
→Week 11 and 12: → 2 weeks of clean up - impact on both CMS and UJ56→ Removal of metallic platform in UXC55
05/11/2010
Method of work and draft schedule
→Week 13 onwards: → Installation of blast door ~10kCHF→ Installation of a sector door in new gallery (move from UJ561)
→ 1st draft estimate: ~60CHF mainly driven by software modification and commissioning
→ Installation of lighting→Modification of ventilation
05/11/2010
Method of work and draft schedule
→Error margin on time estimates for CE work→ +/-20%,
→Potential sources of delay→ Difficult dust management→ Services not dismantled in time in UJ56→ Unforeseen access restrictions→ Unexpected water inflow from PM54, unforeseen geological conditions
05/11/2010
Additional considerations
→Error margin on cost estimates for CE work→ 800,000CHF +/-30%,
→Use of PM56: to be used for CE personnel access→Potential RP issues
→ S Roesler: The design should not compromise the non designated area status of the USC55, especially since the geometry would allow to add shielding
→ Getting simulations to back this statement would take 1 month of a fellow…. Once this gallery becomes part of the baseline solution, the resources for the necessary verification will be found, if necessary, with financial help by Christoph
05/11/2010
Additional considerations
→ During the 2012 shutdown CMS will have to be fully open to allow the servicing of the PIX
→ -Z end draft sequence already verychallenging.→ 12 weeks of delay would have tobe included.→ Significant overhead
05/11/2010
Impact on CMS
→ Cons:→Non negligible cost→12 weeks of delay on the CMS schedule→Significant disruption to the CMS Experimental area during work
→ Pros:→Faster and safer emergency evacuation→Allow using the UJ561 for R2E or upgrade projects→ In line with initial and approved evacuation scheme (Christoph
Schaefer)
05/11/2010
Pros and Cons
[email protected] 1305/11/2010
Reserve Slide
CV equipmentTo relocate for
R2E
BRAN GasCan be moved
6.92m
J Bos PH-CMX
[email protected] 1505/11/2010
Reserve Slide→EN-EL work: ~ CHFM2.3→Not including work to be done by other service groups
contributing to the relocation of EN-EL equipment→GS-SEM work:→Escape gallery: < CHFM1→Service ducts: CHF4,000/m→E.g: 15m link between UJ56 and bypass = CHF60,000
→Costs of fire doors, smoke detection, metallic structures, cooling and ventilation, re-commissioning still not assessed