1 Technical Co-ordination, Phase One The shared post of PM/TC has worked quite well Six months ago...
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Transcript of 1 Technical Co-ordination, Phase One The shared post of PM/TC has worked quite well Six months ago...
1
Technical Co-ordination, Phase One
•The shared post of PM/TC has worked quite well•Six months ago there was much for us to learn:
Revised the WBS Now have a clearer picture of tasks and responsibilities Led to better understanding of the project Technical detail and information flow was not obvious Engineering content of Infrastructure WP had been
grossly underestimated New Hall Manager, together with re-structured
meetings, is a vital link in the project Some very good progress has been made in the Hall
build-up, but there have been a few technical problems…
•Clear that we have to plan better for Phase Two
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Technical Co-ordination, Phase One•Delay to target running:
Ideally, management of design and manufacture should have been in one place
Mechanical design of the bearings and shaft could have been improved to mitigate dust problems
• delays and QA problems On & Offline targets should have had parallel working One Project Engineer identified at Daresbury for target,
effective, but rather too late to make big difference•If there is a limited target programme in Phase Two:
Mechanical re-design, bearings, shaft (important) Single engineering oversight Should ISIS take responsibility for installation?
•Start up of Q4,5,6 Has been delayed as they are not connected to water Result was we missed completing before ISIS started and lost
access to DSA•All services and ancillaries must be captured on installation drawings with parts lists –
simple stuff, but surprisingly difficult to implement
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Technical Co-ordination
•The Infrastructure project: Magnetic Shield walls Rolling platforms False floor Concrete floor removal Excavation of ISIS mound DSA Roofing Air Conditioning Water Electrical
•The engineering content was seriously under-estimated, what have we done?
We now understand it (Don’t like what we’ve found though!) Broken it into more digestible chunks, i.e. North, South, etc Appointed new WP1 Manager (Tim Hayler) Limited de-scope possibility (rolling platforms) Tenders, orders, etc underway, see Richard’s slides
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Technical Co-ordination
•Infrastructure technical status: Following big-ticket items are committed:
• South shield wall support structure• Air conditioning units• Concrete floor removal
Design work almost complete for:• False floor• North wall shield support structure• DSA roofing and walkways
Four sensible offers received for ALL magnetic shield plates (£150k – £200k)
Remaining design work:• MICE Hall roof layout (not yet started) & check the roof’s
structural rating– Fence between MICE roof and Injection Hall
• Installation drawings for CDM records (hopefully a collating exercise)
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Hall Infrastructure – lots of dates•All planned with reviews, tenders and delivery dates known•Decouple the RF project from the false floor.
RF components under the false floor. False floor provisional design review 15th Feb
•Removal of the concrete ramp Survey completed 10th Feb. (Done) Contractors need 4 weeks to excavate, start work week beginning 18th Feb.
(£20K)
•South magnetic shield wall and mezzanine Design agreed. Tenders back for steel plates 14th Feb (four offers, £150-200K) Installation work due to start 10th March. (£78K)
•North magnetic shield wall and mezzanine PDR on 22nd Feb
•Air conditioning AC layout agreed. Tender process started, delivery expected 31st March (£82K)
•Rolling platforms 1 and 7 tracker platforms out for manufacture, delivery 1st March (£77K) Design #2,3,4,5,6, ready 12th April Delivery of #2,3,4,5,6 11th July
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Magnetic Shield Walls
•Walls (in purple) South wall more complex Design complete North wall design underway Final quotes for both
support structures Final quote for magnetic
steel plates Not important for Phase I? Big impact on other work
and operation of experiment
•Mezzanine (in lime green) Closely coupled to walls Part of Hydrogen system Needs to be built together
with walls Also staircases replaced Fire protection issues
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False floor & RF
•Need to decouple the RF project from the false floor. Andy Moss (DL) has agreed to lead the RF work and produce a costed plan
for the remaining RF project• There is just enough space layout of the RF components under the false floor• Based on a ‘worst case’ proposal for RF distribution from DL
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Concrete plinth & Magnetic shield walls
•Removal of the concrete ramp Full MICE beam line has been surveyed into Hall. Concrete area to be
removed has been defined.• Contractors need 4 weeks to excavate, start work week of 18th Feb.• Area tented to prevent dust.• Some concerns about vibration. (Linde plant)• Some overlap with Linde test cap, under review.
•South magnetic shield wall and mezzanine• Existing stairway must be altered • Install support structure for magnetic shield wall• Install steel plates on support structure• Construct new south wall mezzanine• Material still to be defined• Would prefer aluminium
– Painting and fire proofing
• Steel is cheaper but magnetic
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Rolling Platforms•We had planned to install 7 similar systems
Largest pair (1&7) for the trackers• These are in production, delivery 1st March.• As well as moving tracker & solenoid in/out
of beam, they support some ancillary equipment and resist the (potentially) large magnetic forces from S/C coils
• Use air skates to facilitate movement• Originally designed to carry compressors
Remainder are generally smaller• Design #2,3,4,5,6, ready 12th April• Not required until Step III and later
Could be re-designed to save cost with only a small loss of functionality – see later
• and NO reduction in safety margins• Delivery of #2,3,4,5,6 currently scheduled
for 11th July
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Excavation of ISIS mound - Hydrogen vent pipes
•We have 5 holes cut in the South Wall of the MICE Hall•These provide
Access to two pumps Provision of 3 vent lines
•We need to excavate part of the ISIS mound
This provides shielding for ISIS We will excavate during May shutdown Install plant & concrete buffer Backfill with earth We will replace at least as much
shielding as we remove. Principles agreed with ISIS RPA Should not disturb work in Hall
•We would like to alter layout Save work (cost) and improve operation Needs to be cleared with safety Design work commitment needed from
Engineering staff
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Technical Co-ordination
•So the Infrastructure will over-run Phase One…. Three main effects:
• Will delay Step II & III of MICE• Stack-up of deadlines means Heavy civil work will be concurrent
with tracker/solenoid integration – cannot be allowed• Spending on infrastructure (manpower & capital) carried into Phase
II Open questions:
• We can stage the build of the magnetic wall, not a cost saving, in fact probable cost increase, but we can tailor to meet Phase II beamline build schedule better?
– Direct cost saving from change of rolling platforms 2-6 for off-shelf slides
• Carry on as we are option: basically the infrastructure work dominates the Hall until mid July 2008
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Technical Planning for Phase Two•We have to plan better:
The Phase One Infrastructure Work Package should convert into Integration & Services for Phase II:
It’s very important that this is understood and properly resourced, because the risks are greater:
• More diversity in the beamline elements• Safety, technical, financial and collaborative issues• The Hall will be full of equipment – less space than we think
The current WP1 Manager can do it, but must be backed up by suitable, technical person
Better use to be made of the Technical Board• Integration & compatibility issues will become more important
•Currently the Hall baseline layout is a huge 2D CAD drawing ‘owned’ by one person. We will fail if we carry on like this
The drawing is too large and crowded It has no dimensions or datums for beamline items No services detail shown All technical integration decisions are on the critical path at the mercy of
one overloaded person
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Technical Planning for Phase Two
•We will convert it to 3D CAD assembly – partly done already:
Access by multiple controlled users possible Engineering decisions can be made in parallel CAD models more easily shared among collaborators Dimensioned plans can be extracted
•A couple of worries: The RF and LH2 projects both have the potential for
large unforeseen expansions of engineering effort:• The RF power distribution is currently ill-defined• The LH2 is an R&D project at present and the led engineer
left last year (replacement identified – Mike Courthold) Interaction with the rest of MICE for both these
activities will not be straightforward The Phase II effort profile estimate is taking shape, but
it must allow sufficient margin for the above and identify the right person – discussions underway with EID
Integration & services must be identified as a discrete Work Package.