Long-Baseline Neutrino Facility LBNF Far Site CF Scope Joshua Willhite Interface and Logistics Workshops August 10-12, 2015

LBNF Surface Scope Joshua Willhite | FSCF Scope2

LBNF Surface Scope Joshua Willhite | FSCF Scope3 Ross Dry & Control Room Cryogenic Compressor Building Power Feed

LBNF Control Room Requirements: Minimum 400 GSF for 10 occupants Data connection and fire alarm system connection All data systems provided by experiment HVAC to maintain personnel comfort and control data rack temperature Design: Utilize existing room within Ross Dry Building Make ADA compliant (this is the only scope with this requirement) Lead AHJ has formally approved this Joshua Willhite | FSCF Scope4

LBNF Power Supply Existing Ross Substation has 20 MVA capacity, using ~5 (plenty of capacity) Surface Power Requirement: ~5.3 MW Underground Power Requirement: ~2.9 MW Add additional switchgear in substation for new feeders Utilize existing utility bridge to connect to existing steam tunnel Protect new cables by embedding conduits within new concrete floor in the steam tunnel Split power at shaft, one cable set feeding the underground, one feeding the surface compressor building and control room Joshua Willhite | FSCF Scope5

LBNF Power Supply Route Joshua Willhite | FSCF Scope6

LBNF Cryogenic Compressor Building Interfaces and Requirements Cryogenics group responsible for dewars, purity monitoring system, vaporizers, compressors, and gas piping inside the building CF responsible for building, civil works, cooling towers, coolant recirculation, power supply (normal, emergency, standby), and gas piping from building to the underground. Cryogenics group defined building footprint by providing drawings and compressor specifications. (DocDB 9965)DocDB 9965 Compressor sizing and pipe sizing is based on desired filling rate of the detectors. Once full, fewer compressors will operate to circulate nitrogen to the underground Joshua Willhite | FSCF Scope7

LBNF Cryogenic Compressor Building Joshua Willhite | FSCF Scope8

LBNF Cryogenic Compressor Building Elevations Joshua Willhite | FSCF Scope9

LBNF Ross Dry Joshua Willhite | FSCF Scope10

LBNF Other Surface Scope (early work managed by SURF) SURF has identified several surface projects that are believed to pose risks to the facility and should be addressed prior to LBNF construction as follows: Near-surface adit repairs (Tramway, 300L) Crusher building roofs at both shafts Hoist upgrades (motor rebuilds) Headframe reinforcement at both shafts Administrative Building Parking lot/roadway Oro Hondo Fan Joshua Willhite | FSCF Scope11

LBNF Shaft Scope Utilities in the shaft include: Power Fiberoptics for data separate from fire alarm Nitrogen (three 12”, two 8”) and argon (one 8”) gas pipes Concrete slick line for construction in 6 winze Fire water pipe from 4100L to 4850L Existing 4” water line will feed a sump at the 4100L and continue past to service other water needs. 6” fire line from 4100L sump to 4850L Other shaft scope (early work managed by SURF): LBNF paying for 2016/2017 rehab New cage and skips Joshua Willhite | FSCF Scope12 Changing for 100% (2) 16” N2 pipes rather than (3) 12”

LBNF Yates Shaft Scope For the 100% design, Arup is including the following work for the Yates Shaft: Removal of bracing in the headframe to accommodate 17m long beams Replacement of timber within shaft from just above the 4850L to the bottom with steel Raising the brow at Yates to accommodate 17m long beams Enlarging the 4850L station to allow beams to come out of skip compartment Mike Johnson is working on special conveyance designs to expedite beam delivery. This is not in Arup’s scope. The corner beams are an unsolved problem at this time Joshua Willhite | FSCF Scope13

LBNF From Dimitar and Diamante Joshua Willhite | FSCF Scope14

LBNF Cryostat Structure Bill Of Materials Joshua Willhite | FSCF Scope15

LBNF Yates Brow Joshua Willhite | FSCF Scope16

LBNF Delivery Route Joshua Willhite | FSCF Scope17

LBNF Monorails Joshua Willhite | FSCF Scope18 For 100%, two monorails located 1.5m from side walls, one centered on cavern No known height requirement, so placed as close to back as possible 10 metric ton capacity meeting deflection criteria of L/ m gap between detector caverns to allow room for utilities to cross caverns Beams do NOT extend into east or west access drifts – only to cavern end (see next slide) Unclear interface with clean room

LBNF AHU Placement Joshua Willhite | FSCF Scope19

LBNF Underground Excavation Joshua Willhite | FSCF Scope20 No

LBNF Cavern Locations Joshua Willhite | FSCF Scope21

LBNF Stress Evaluations Joshua Willhite | FSCF Scope22

LBNF Drifts – slashed and new access at the 4850L Joshua Willhite | FSCF Scope23 5m x 6m based on old assumptions – will optimize in FD

LBNF Cavern Excavation Sequence Joshua Willhite | FSCF Scope24

LBNF Phasing Joshua Willhite | FSCF Scope25

LBNF Controlling Impacts to other Facilities The Davis Campus is ~1 km upwind of LBNF, so controlling impacts to this campus during construction is relatively straightforward. The Ross Campus is fairly close - ~100m from the nearest extent of the campus to the nearest excavation. CF proposed a limit of 0.5 in/sec vibration and 134 dBL air blast overpressure, both derived from standard mining criteria. The two primary users of the Ross Campus (CASPAR and BHUC) accepted these recommendations Joshua Willhite | FSCF Scope26

LBNF Vibration Control (load size vs. vibration) Joshua Willhite | FSCF Scope27

LBNF Air Blast Control Most extreme situation is when building a cryostat in cavern 1 while blasting the second pit due to proximity and cross section – draft concept shown at right (under development) Control at Ross Campus is most challenged by retaining ventilation Joshua Willhite | FSCF Scope28

LBNF Life Safety Life safety analysis has defined compartmentation layouts and fire rated egress pathways in each phase. Note that ODH analysis and control is the responsibility of the cryo group, who have defined minimum air flow. Compartmentation for fire events also provides for ODH, but is not designed specifically for it. An existing refuge chamber is currently outfitted for 72 persons, 96 hours occupancy. One SURF Operations project is planning to upgrade this room to support as much as 150 occupants. Any refuge needs beyond this upgraded chamber during construction will be the responsibility of the construction contractor. A logistics study will be completed later this year to understand potential occupancy for all stakeholder. A draft life safety assessment has been posted to DocDB 4395 evaluating the current scope and offering suggestions for improvement Joshua Willhite | FSCF Scope29

LBNF Compartmentation and Egress Joshua Willhite | FSCF Scope30

LBNF Cyberinfrastructure Joshua Willhite | FSCF Scope31 Need Help Here

LBNF HVAC – Chilled water system Joshua Willhite | FSCF Scope32

LBNF HVAC - Ducting Joshua Willhite | FSCF Scope33 Note all exhaust through central cavern

LBNF HVAC - Ducting Joshua Willhite | FSCF Scope34

LBNF Facility Ventilation Joshua Willhite | FSCF Scope35 Intake/Fresh Exhaust/Hot Adding Borehole for 100%

LBNF Plumbing and Fire Suppression The cryogenic gas pipes that come through the shaft are taken to the west entrance of the central utility chamber – then responsibility transfers to the cryo group. Water is only required for the HVAC system (spray chamber makeup, cooling) and fire protection. Both will use industrial water supply. Potable water is provided via UV treatment (identical to Davis and Ross Campus systems) for miscellaneous use (no actual requirement exists). Fire suppression systems (sprinklers) are provided in all areas (except mucking ramp) created for LBNF. Hose stations are provided every 200 feet as well Joshua Willhite | FSCF Scope36

LBNF Electrical Loads Joshua Willhite | FSCF Scope37 Underground Electrical Load by AreakW Underground Load by FunctionkW Cryostat 1&2 Detector Electronics450Detector2088 Cryostat 1&2 Argon Pumps98CF1846 Cryostat 1&2 CF350898Total =3934 Cryostat 3&4 Detector Electronics450Aggregate Demand Factor0.736 Cryostat 3&4 Argon Pumps98 Demand Total = 2894 Cryostat 3&4 CF Central Utility Cavern - Detector Cryogenics956 Central Utility Cavern - DAQ36 Central Utility Cavern - CF Spray Chamber165 Maintenance/Assembly Shops (2)84 Surface Electrical LoadkW Drifts152401Cryogen Building5000 Total =3934Control Room250 Aggregate Demand Factor x0.736Emergency/Standby Generator50 Demand Total = 2894 Total Surface Load 5300 Emergency/Standby Generator = 848Temporary Electrical LoadkW Aggregate Demand Factor = 0.393Construction Power 1653 Generator Demand Total = 334 Emergency/Standby Power 699

LBNF Electrical Equipment Joshua Willhite | FSCF Scope38

LBNF Lighting Lighting at floor level in all space except detector caverns at 24 lux with occupancy sensors in drifts using UL wet location watertight fluorescent fixtures Lighting at 0.7m above the cryostats at lux using UL wet location watertight LED fixtures Emergency lighting throughout with 90 minute battery supply and tied to standby generator Joshua Willhite | FSCF Scope39

LBNF Controlling EMI To control electrical interference between facility and experiment electronics, separate shielded transformers are provided, and the experiment ground is isolated using inductors and insulators. Additional requirements have been stipulated to avoid ground paths through detector caverns and provide minimum cable lengths to dampen EMI frequencies Joshua Willhite | FSCF Scope40

LBNF Fire Detection Fire detection monitoring will include Smoke detection (VESDA) Oxygen concentration monitors CO detection Heat detection Sprinkler water flow switches Manual pull stations Notification will include alarm, voice, and visual (strobe) Control panels will be strategically located at the 4850L, as well as within the surface control room Joshua Willhite | FSCF Scope41

LBNF Structural Joshua Willhite | FSCF Scope42

LBNF Architectural Joshua Willhite | FSCF Scope43

LBNF Waste Rock Handling - Underground Joshua Willhite | FSCF Scope44

LBNF Waste Rock Handling - Surface The surface waste rock handling included in this design was developed during the 60% preliminary design for DUSEL. No updates were made beyond updating costs based on escalation. A design-build contract is planned to capture all waste rock handling scope from the skip discharge to a truck loading system as shown on the following slides Joshua Willhite | FSCF Scope45

LBNF Surface waste rock handling plan and elevation Joshua Willhite | FSCF Scope46

LBNF Interfaces Joshua Willhite | FSCF Scope47 Weekly meetings to define interfaces, a sampling of which are shown below. The full working document can be found in DocDB

LBNF Joshua Willhite | FSCF Scope48