1st LTEX 22 June 2009D.LACARRERE1 Protection of UX85 EDMS No 1005700 IP8 Current Status & Plans ...
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Transcript of 1st LTEX 22 June 2009D.LACARRERE1 Protection of UX85 EDMS No 1005700 IP8 Current Status & Plans ...
![Page 1: 1st LTEX 22 June 2009D.LACARRERE1 Protection of UX85 EDMS No 1005700 IP8 Current Status & Plans UX85 Expt Area RB84 (8-7 sector) RB86 (8-1 sector)](https://reader036.fdocuments.in/reader036/viewer/2022062518/56649f4f5503460f94c71d7d/html5/thumbnails/1.jpg)
1st LTEX 22 June 2009 D.LACARRERE 1
Protection of UX85
EDMS No 1005700
IP8
Current Status & Plans
UX85 Expt Area
RB84 (8-7 sector)
RB86 (8-1 sector)
Works to be done
Remarks 15 June 2009
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1st LTEX 22 June 2009 D.LACARRERE 2
Pit 8 – LHCb - UX85 Area
ACCESSPERSONNEL
PM SHAFTUXA
IP8
ACCESSEQUIPMENTPX SHAFT
RADIATION SHIELD
UXCUXB
Access - CheckingPersonnel & Materials
UXA – LHCb Protected AreaUXB – LHCb Detector AreaUXC – LHC Cryogenics
Accessible Area when LHC operates
BEAM 2
BEAM 1
POINT 1(ATLAS)
ACCESSPERSONNEL
PZ SHAFT
UX85 CAVERN
RB86
RB84
SHIELDING PLUGS
FIG. 1
UJX Gallery
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1st LTEX 22 June 2009 D.LACARRERE 3
Shielding Plug – RB84 Area
2200
REF. : Document edms no 38083FIG. 2
Beam Axis
IP8
10400Fe Concrete
Concrete
8001200800
Air flux
holes
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1st LTEX 22 June 2009 D.LACARRERE 4
RB84 - Segmentation (reminder)
January 2008
Mobile door
Concrete blocks
Aperturefor survey
View from LHC tunnel FIG. 3
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1st LTEX 22 June 2009 D.LACARRERE 5
August 2008
Air tightness – First Improvements (August 08)
Metallicjoints
View from LHC tunnel FIG. 4
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1st LTEX 22 June 2009 D.LACARRERE 6
18 June 2009FIG. 5
RB84 side - Current Status (June 09)
- Joints filled with PUR- Joints sealed with concrete- Painting
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1st LTEX 22 June 2009 D.LACARRERE 7
Aluminium Cover Sheets
Al sheet removable
FIG. 6
Al sheetsremovable
View from LHC tunnel
Al sheetsfixed to tunnel
Additional Improvements (?) (not yet decided)
Installation of Al cover sheets
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1st LTEX 22 June 2009 D.LACARRERE 8
19900 from IP8
FIG. 7
Beam Axis
24622 from IP8
FeConcrete
REF. : Document edms no 38083
1200 800
RB86 Area - Improvement Tightness
MF4
MF
4
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1st LTEX 22 June 2009 D.LACARRERE 9
Hole 800 x 800 mm2
MF4 – Central Part
NO ACTION
FIG. 8
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1st LTEX 22 June 2009 D.LACARRERE 10
Joint PUR + concreteMetallic sheets (Al 8 mm thick)
Joints & Metallic sheets
FIG. 9
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1st LTEX 22 June 2009 D.LACARRERE 11
Holes in the chicane
PROPOSED ACTIONS 1 - STRENTHEN SECTOR DOOR2 – FILL HOLE DEDICATED TO SURVEY PIPE
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1st LTEX 22 June 2009 D.LACARRERE 12
False floor in the chicane
ADDITIONAL CONCRETE BRICKSIN THE FALSE FLOOR
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1st LTEX 22 June 2009 D.LACARRERE 13
RB84 Side- Mechanical stability of the 1st concrete shield (front of VELO) to be checked with a pressure of 40 mbar. Calculations has been performed by J.C. Batista Lopes DG-SC edms 1005362/1 19 June 2009) – Conclusion : Good stability up to pressure 75 mbar – sliding of upper part - Installation of aluminium cover sheets (LHC tunnel side)- Work scheduled fro week 26
RB86 Side- All main joints (MF4) will be filled with PUR or plastic seal (in particular small gaps) + special concrete (repair cement) + cover sheets.- Strengthen of the sector door (?) . But how. - Cover the cryo-line with aluminium sheets (8-10 mm thick)- Work scheduled for wks 30 – 31
Summary – Main Works on going
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1st LTEX 22 June 2009 D.LACARRERE 14
Remarks UJX Tunnel (from UJ87 up to PX shaft)
- Mechanical stability of the wall between tunnel & UJX to be checked with a pressure of 40 mbar. Contact with GS-CE Group
US85/UX85- Wall between US85 & UX85 is made of “SIPOREX” concrete (20 cm thick) Mechanical stability to be check (?)
BUDGET & COORDINATION
- Budget code to be used ? Machine side ?- How to proceed ? - Coordination on site – Who ?
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1st LTEX 22 June 2009 D.LACARRERE 15