Chamber 1 Initial Occupancy Scenerio Discussions T. Lundin 18 - - PowerPoint PPT Presentation

Long-Baseline Neutrino Facility LBNF

Chamber 1 – Initial Occupancy Scenerio Discussions

• T. Lundin

18 December 2017

LBNF

Agenda

12.18.17 2

• Dimensions including tolerances
• Details of the walls, floors, doors
• Occupancy Scenarios
• Availability of access from the chamber floor
• Utilities that CF will have in place upon initial occupancy
• Requirements update (this requires further discussion today)
• Items being addressed as “host laboratory” responsibilities
• Items already addressed and implemented
• Items needing more work
• T. Lundin December 18, 2017 Interface Meeting

LBNF

Dimensions including Tolerances

12.18.17 3 Current dimensions based on Arup’s 100% preliminary design drawings posted in DocDb 136. At the November final design kick-off meeting with Arup we discussed things that have changed (and may change) and will require modifications to the design

• T. Lundin December 18, 2017 Interface Meeting

LBNF

Dimensions including Tolerances

12.18.17 4

The 100% preliminary design drawings include a specific number (or address) for each underground space

• T. Lundin December 18, 2017 Interface Meeting

LBNF

Dimensions including Tolerances

12.18.17

• T. Lundin December 18, 2017 Interface Meeting

5

Each space has defined excavated minimum dimensions in english and metric units. Overbreak of up to 1-foot is anticipated Dimensions shown are to the inner face of the

• shotcrete. Excavated dimensions will be specified as

being + “x” inches, minus zero

WWF and shotcrete is being replaced with non- metallic fiber shotcrete on all walls below the 4850L

LBNF

Dimensions including Tolerances

12.18.17 6

Arups dimensions tie to the clearance envelope drawing F10043159

Note minimum and maximum dimensions for items within the excavation

• T. Lundin December 18, 2017 Interface Meeting

LBNF

Preliminary Design Details of Wall and Floor Finishes

12.18.17 7

• T. Lundin December 18, 2017 Interface Meeting

WWF and shotcrete is being replaced with non-metallic fiber shotcrete on all walls below the

• 4850L. It will be a “rough” finish

– no hand troweling Floor tolerances will be +/- 3/8 inch. This means that that maximum point deviation from the assumed datum or elevation is +/- 3/8 inch and the maximum stacked or cumulative deviation is also +/- 3/8 inch.

Need floor loading to be defined.

LBNF

Details of Doors

12.18.17 8

• T. Lundin December 18, 2017 Interface Meeting

Technical specifications for doors have not yet been drafted

LBNF

Details of Doors

12.18.17 9

• T. Lundin December 18, 2017 Interface Meeting

Technical specifications for doors have not yet been drafted

LBNF

Before We Talk about Occupancy Scenarios

12.18.17 10

Access drifts with a floor elevation at the 4850L, and mucking drifts below the 4850L for removing excavated material and construction air exhaust pathways Recognize that there are two types of drifts

• T. Lundin December 18, 2017 Interface Meeting

LBNF

4850L Access Drifts

12.18.17 11

• T. Lundin December 18, 2017 Interface Meeting

LBNF

Mucking Drifts Below the 4850L

12.18.17 12

We are currently not planning to have any temporary or permanent utilities in the mucking drifts

• T. Lundin December 18, 2017 Interface Meeting

LBNF

Chambers 1 and 2 – Initial Occupancy Scenario

12.18.17 13

Initial turn-over of underground spaces to science includes chambers 1 and 2, the CUC, and some drifts

• T. Lundin December 18, 2017 Interface Meeting

LBNF

Chambers 1 and 2 – Initial Occupancy Scenario

12.18.17 14

When Chambers 1 and 2 (and the CUC) are turned over to science some CF utilities will be in place. Because we have not had recent access to our designer we have not been able to determine the status of utility installation at initial turn

• ver. During final design we will work out the utility issues.

All of the utilities will be in place about 12 months after science has had access to these spaces. Unfortunately until we get access to our designer we cannot tell you anything more specific about utilities. At initial occupancy, other than the monorails which should be fully functional in detector chambers 1 and 2, CF is not planning for any bridges or other mechanical access to the floor of the detector chambers. The CM/GC is planning to install temporary stairs to the chamber floor that can be left in place for science. Requirements for any other access that might be wanted need to be defined.

• T. Lundin December 18, 2017 Interface Meeting

LBNF

Chambers 3 and 4 Occupancy

12.18.17 15

Chamber 3 will be available to science about 9-10 months after science has first gained access to chambers 1 and 2. About 18 months after science first gained access to chambers 1 and 2 all other areas will be available including chamber 4.

• T. Lundin December 18, 2017 Interface Meeting

LBNF

Access From Below Exists But …..

12.18.17 16

Note that the temporary bulkhead is being removed, and the center access drift is being centered

• n the septum.

Cryogenics will be adjusting the footprint cryo equipment in the CUC accordingly.

• T. Lundin December 18, 2017 Interface Meeting

LBNF

Access From Below Exists But ….. Is Not Available Until After Chamber 4 is Excavated

12.18.17 17

Blast doors/bulkheads separate “dirty” excavation and air exhaust spaces from “clean” science spaces

• T. Lundin December 18, 2017 Interface Meeting

LBNF

Requirements Update Items Being Addressed as Possible “Host Laboratory” Responsibilities

12.18.17 18

• T. Lundin December 18, 2017 Interface Meeting

Title Sub-project responsibility

Machine Shop (mucking ramp?)

Host Lab Survey network to allow positioning of the various components Host Lab Underground evacuation system Host Lab Fire detection system Host Lab GSM phone antenna and wireless network Host Lab Electrical distribution system with European type electrical power (230 V, 50 Hz) Host Lab Safety crews to monitor work done and its preparation Host Lab Survey team Host Lab Emergency intervention team Host Lab Procurement system to allow an effective procurement procedure for small material and tools needed locally Host Lab

LBNF

Requirements Update Items Already Adopted and Implemented

12.18.17 19

• T. Lundin December 18, 2017 Interface Meeting

Title Rationale ​Exhaust ventilation ductwork to the base of the rock septum rather than the top ​Provide adequate circulation for occupation during warm structure construction. Temporary use of exhaust duct ​Mezzanine shift 4.8 m from end wall ​Avoid limiting access to end of detector ​Add a ninth and tenth connection points for mezzanine supports on rock wall and vertical connection point (horizontal and vertical connection points) ​provide flexibility for design of cryo equipment on the mezzanine ​Eliminate blast wall between chambers 1 and 2, shift central access drift to center of pillar ​Makes crane coverage symmetrical. The bulkhead is finished Jan 21, 2021. Chamber 2 excavation is finished April 19, 2021. Warm structure #1 starts May 3, 2021. ​CF to provide adequate connections for lighting and fire protection to be added below the mezzanine by others. ​Cryo needs somewhere to connect

Cryogenics will be adjusting the footprint cryo equipment in the CUC accordingly

LBNF

Requirements Update Items Needing More Work

12.18.17 20

• T. Lundin December 18, 2017 Interface Meeting

Title Notes ​CF to provide permanent Alimak type elevators for each chamber (Assume chamber 3 and 4 would be scope

• ptions).

​9/13/2017: This is a new requirement, need to identify who has responsibility to come up with this requirement. 10/10/2017: no update. i) Need headcount, load, ii) work deck. Two requirements. 10/25/2017: Conveyance strategy TBD in December 2017. ​Conductivity testing for concrete slab ​9/13/2017: Terri needs to define the need for the test and its requirements. 10/10/2017: We want high resistivity concrete in addition to non conductive rebar. Terri to verify 500 ohm-meter numbers 10/25/2017: Terri waiting for feedback from Veljko Radeko by next ​Design accommodations for a bridge crane ​9/20/2017: Conveyance strategy TBD in December 2017 ​Additional monorail hoists? With removal of blast wall, do monorails between chambers become continuous over the septum ​9/20/2017: Conveyance strategy TBD in December 2017 ​Mezzanine load increase - 10/16/17 LBNC presentation talked about need to provide updated loading parameters - are loads finalized? ​9/20/2017: Documenting latest loading condition is specified. Requirements and ICDs to be updated. 10/10/2017: need update from David 10/25/2017: Cryo to provide worst case load numbers.

LBNF

Requirements Update Items Needing More Work

12.18.17 21

• T. Lundin December 18, 2017 Interface Meeting

Title Notes ​Underground data room requirement of 52 includes 2 CF racks (cryo is outside this room, DUNE needs 50) CF to reconfigure data room, meeting, and breakroom space in the CUC during final design ​9/20/2017: Clarifying DUNE needs 50 10/25/2017: Need clarification regarding the size of racks. CF to provide cooling for racks. ​Temporary electrical distribution in chamber pit for cryostat assembly TBD by Dimitar ​9/13/2017: Need requirement from cryostat. Terri to talk to CERN regarding this. 10/10/2017: no update 10/25/2017: No update. Jack to follow up with Dimitar. ​Electrical/data support for infrared cameras? ​9/13/2017: No new requirement on CF. 10/10/2017: affects grounding

• plan. Need info regarding location, etc.

10/25/2017: Need info from Marzio. ​A system of emergency shut off switches for power distribution (?) Need to clarify if this for both temporary and permanent systems ​9/13/2017: Permanent not in the pit above 4850L. Terri to talk to CERN about this. 10/10/2017: M. Andrews and Terri to talk to CERN in November 2017. 10/25/2017: No update. ​While not specifically requested, we should do a trade study comparing the cost of running all utilities below the 4850L across the rock pillar with the cost of three monorail hoists (the bridge crane is provided by Marzio, so doesn’t factor into the cost). ​9/20/2017: Matt to provide a concept layout of the trench with the utilities in them. 10/25/2017: Need info on piping that will go in the trench. Require info from ARUP

LBNF

Requirements Update Items Needing More Work

12.18.17 22

• T. Lundin December 18, 2017 Interface Meeting

Title Notes ​Access Control System (key cards) ​9/13/2017: On door to the leased space. Josh and Doug to check. 10/25/2017: In progress ​Industrial water, compressed air, and emergency telecom at chamber bottom ​9/20/2017: Need requirement from cryostat, cryogenics and FD. 10/25/2017: In progress ​Add a temporary grounding network down into each detector pit ​9/20/2017: Need requirement from cryostat, cryogenics and FD 10/25/2017: no update, in progress. Detector chamber floor loading definition Check unistrut and utility support locations and details Check mezzanine support connection locations and details