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Dismantling of shielding wall in PSB injection zone. Preliminary concerns. To be accessed from PSB or from PS. Quantities and weight. 300 concrete blocks with max weight of 1250kg 30 steel beams (1,6mx200x200), with max weith 500kg 635 concrete bricks of 18 kg each - PowerPoint PPT Presentation
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Caterina Bertone - 2/10/2012
Dismantling of shielding wall in PSB injection zone
Preliminary concerns
Caterina Bertone - 2/10/2012
To be accessed from PSB or from PS
Caterina Bertone - 2/10/2012
Quantities and weight
• 300 concrete blocks with max weight of 1250kg
• 30 steel beams (1,6mx200x200), with max weith 500kg
• 635 concrete bricks of 18 kg each• Hundreds of steel bricks to close the open
whole
Caterina Bertone - 2/10/2012
Pure dismantling
• Mounting technique and tools no longer authorised: needs for studies and tooling: 50kCHF
• Consider 1 month for wall removal + time needed to mount and dismount lines to arrive to the wall: ~50kCHF for manpower
Caterina Bertone - 2/10/2012
From PS
All you see in the phots needs to be removed
Caterina Bertone - 2/10/2012
From PSWay to go: all to be dismantled
Caterina Bertone - 2/10/2012
From PS: machines in and blocks out
Caterina Bertone - 2/10/2012
Summary of evacuation by this way• Dismantling of the whole zone + up to PS machine• Dismantling of 1-2 PS unit to pass into the inside of the
ring and a part of LBS line• Reinforcement of slab under the PS units and along the
path (to be checked) to pass with heavy machines+blocks• Full reinforcement of the slab from evacuation door and
inner side of PS ring at this position• Unknowns about ground situation• Extra long patch and need for handling means (loco +
trailer+forklifts etc)
Caterina Bertone - 2/10/2012
From PSBAll you see in the phots needs to be removed
Caterina Bertone - 2/10/2012
From PSB open spaceSlab to be reinforced
Caterina Bertone - 2/10/2012
From shielding to tremie
Evacuation lane
Cable trays + line toBe removed
Caterina Bertone - 2/10/2012
And away…
Caterina Bertone - 2/10/2012
Summary of evacuation by this way
• Dismantling of the whole line up to PBS machine
• Reinforcement of slab under along the path (10 m?) to pass with heavy machines+blocks
• Short patch and limited need for handling means
• More activated zone?
Caterina Bertone - 2/10/2012
Open questions and short conclusions
• Activation of blocks?• Permanence of operators in ‘hot zones’ like PSB injection
region?• Reinstallation of the wall after CE? • Sol 1 prevent future exchange of magnets in the zone (no
more transport zone), Sol 2 and seem difficult to realise to lift the dump up and keep in place. Sol 4 needs installation of a crane in the vault up to the zone to allow future handling of the 2 lines (from where do we insert the dump?)
Evacuation from PSB side is clearly the preferred choise It is possible and we are waiting more infos from your side