National Underground Science Laboratory at Homestake

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National Underground Science Laboratory at
Homestake
Many slides courtesy of Mark Laurenti, Homestake
Mining Corporation, Technical Services Coordinator
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Underground Science
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• Stability of matter (proton decay)
• Lepton number conservation (?? decay)
• Dark matter
• Identification of decoupled living organisms

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• Study of Weak Interaction through neutrino
  properties (mass, mixing, charge conjugation)
• Understanding nuclear astrophysics of stars
  (nucleosynthesis, solar neutrinos, rare nuclear
  fusion cross-sections, supernovae)
• Effects of radiation on evolution
• Geoscience (long-term local heating,
  geohydrology)

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• Environmental remediation
• Rock mechanics and drilling techniques
• Geohydromechanics applications
• Radioassay trace analysis techniques (nuclear
  tests, smokestack plumes)
• Search for new drugs

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• Public tourism outreach
• Synergies with K-12 schools
• REU and other undergraduate college programs
• Opportunities to interact with underrepresented
  groups
• Collaborations with research universities and
  national laboratories
• Public data publisher and archive

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Why NUSL at Homestake?
Existing Infrastructure
Depth to 8,000 feet
Outstanding Opportunities for Broader Impacts
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HOMESTAKE MINE
Open Cut
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(No Transcript)
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HOMESTAKE MINE
Mine Infrastructure
Electrical System
Two Surface Shafts
Two Winzes on the 4850
Fiber Optic Communication to Underground
Pumping System
Compressed Air System
Ventilation System
Bell Phone System
Water System
Sand Backfill System
Hoisting Systems
Monitoring / Control System
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HOMESTAKE MINE
Electrical System
BHP Switch Yard
East Substation 40 MVA
Oro Hondo Sub 15 MVA
Ross Sub 10 MVA
Yates (10 MVA)
Ross (20 MVA)
6 Winze (10 MVA)
12KVA
2.4KVA
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HOMESTAKE MINE
Fiber Optic Cable 24 pr, 62.5 micron, Tbase 10
Electrical Cables
12 Airline _at_ 90-100 psi
North Cage
South Cage
North Skip
South Skip
Ea. Cage Comp. 5-3-1/2 (F-F) x 13-4
Ea. Skip Comp. 4-10 (F-F) x 5 9
Yates Shaft Plan Approx. 27-8 x 15
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Yates Cage Hoist Nordberg Mfg. Co Two 1,250 hp DC
Motors Normal Cage Load 12,000 lb. Max Cage
Load 13,400 lb
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Yates Ore Hoist Nordberg Mfg. Co Two 1,500 hp DC
Motors Skip Payload Load 20,000 lb.
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HOMESTAKE MINE
Pumping System
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HOMESTAKE MINE
Ventilation System
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HOMESTAKE MINE
Proterozoic Stratigraphy
Grizzly Fm - Metagraywacke, sericite-biotite
schist
Flag Rock Fm - Biotite-sericite schist, graphitic
phyllite
Northwestern Fm - Biotite-qtz-sericite-garnet
schist
Ellison Fm - Quarzites, Sericite-biotite schist
and phyllite
Homestake Fm - Grunerite/Siderite schist, chert
Poorman Fm - Well-banded sericite-biotite
carbonate phyllite
Yates Unit - Hornblende-plagioclase schist
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HOMESTAKE MINE
Rock Properties
In Situ Stress Estimation (NIOSH)
?v 1.25 h (vertical psi)
?h1 2078 0.53 h (dip direction psi)
?h2 121 0.55 h (strike direction psi)
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HOMESTAKE MINE
Rock Properties
Laboratory Rock Properties (psi)
Property Homestake Poorman Ellison Yates
C1 20,150 13,630 11,340 N/A
C2 11,550 10,000 11,410 N/A
C3 13,270 12,270 8,150 N/A
T1 1,380 2,990 2,350 N/A
T2 1,140 820 590 N/A
T3 1,920 1,910 1,650 N/A
1 3 directions are parallel to the schistosity
2 direction is perpendicular to the schistosity
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HOMESTAKE MINE GENERALIZED X-SECTION
Ross Shaft
Yates Shaft
Ef
Pf
4850
6 Winze
Yf ???
7400
Looking North
8000
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HOMESTAKE MINE 4850
Neutrino Lab
Yates Shaft
Ef
Pf
Yf
4 Winze
Ross Shaft
6 Winze
Shop Area
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HOMESTAKE MINE 4850 SHOPS
60 x 20 x 9
50 x 25 x 9
6 Winze
Ross Shaft
70 x 50 x 9
50 x 30 x 9
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HOMESTAKE MINE 7400
Yates Shaft Projected
Yf
Ef
Pf
6,300 ft
3,000 ft
4 Winze
6 Winze
7400 Shop
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HOMESTAKE MINE 7400 SHOP
29 ft
140 ft
17 ft high
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HOMESTAKE MINE 6950 VENT
Spray Chambers 15 x 15
200 ft
Control Elect. Room
Machine Room
40 ft
23 ft high
163 ft
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Opportunities for Broader Impacts
NUSL
FFDRC
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Design Options-1

• Overall Layout
• Access needs and options
• Surface vs. underground
• Compact vs. distributed
• Infrastructure
• What utilities and facilities are needed?
• What is common vs. shared
• What is concentrated vs. distributed?

Thanks to Lee Petersen and Bob Svoboda
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Design Options-2

• Experimental Halls
• Built-to-order vs. general purpose
• Dedicated vs. shared
• How to deal with shutdown/removal?
• Lab vs. Experiment Issues
• What is process for approving/funding
  experiments?
• What are lab responsibilities vs. experiment
  responsibilities

Thanks to Lee Petersen and Bob Svoboda
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Design Options-3

• How to optimize and coordinate outreach?
• How to build exciting intellectual climate?
• How to facilitate cross-disciplinary synergies?

Thanks to Lee Petersen and Bob Svoboda
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National Underground Science Laboratory at
Homestake
NUSL Workshops
Indemnification
March 2001
January 2002
October 2002
NSF Proposal Submitted Interim Proposal Submitted
NUSL Operation
Mining Shutdown
Interim Funding
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HOMESTAKE MINE 1876 - 2001National Underground
Science Laboratory 2001-