VILLE containment data report

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Description

The VILLE event was detonated in hole U4am of the Nevada Test Site as indicated in Fig. 1.1. A plan view map of the local region around hole U4am indicating the inferred faults and drill holes is shown in figure 1.2. The device had a depth-of-burial of 293 m in the alluvium of Area 4, about 240 m above the standing water level (SWL), as shown in Figure 1.3. Stemming of the 2.44 m diameter emplacement hole followed the plan shown in Fig. 1.4. A log of the stemming operations was maintained by Holmes and Narver. Detonation time was 08:15 ... continued below

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69 p.

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Stubbs, T. & Heinle, R. March 1, 1995.

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Description

The VILLE event was detonated in hole U4am of the Nevada Test Site as indicated in Fig. 1.1. A plan view map of the local region around hole U4am indicating the inferred faults and drill holes is shown in figure 1.2. The device had a depth-of-burial of 293 m in the alluvium of Area 4, about 240 m above the standing water level (SWL), as shown in Figure 1.3. Stemming of the 2.44 m diameter emplacement hole followed the plan shown in Fig. 1.4. A log of the stemming operations was maintained by Holmes and Narver. Detonation time was 08:15 PDT on June 13, 1985 and about 28 minutes later the chimney collapsed to the surface leaving a crater with a mean radius of 59.7 m and a maximum depth of 17.3 m. No radiation arrivals were detected in the emplacement hole and the VILLE containment was considered successful. Three of the five stemming plugs (the first, fourth and fifth) were composed of coarse gypsum aggregate in a gypsum cement slurry. Each of these three gypsum-filled-aggregate (GFA) plugs was monitored during emplacement with arrays of conductivity probes and thermistors. The remaining two plugs were soft, coal tar aggregate (CT/A) gas seal membranes having a thickness of about 1.5 m sandwiched between layers of fines material. A layer of CT/A was poured on the top of each of the top two GFA plugs.

Physical Description

69 p.

Notes

OSTI as DE95013272

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  • Other Information: PBD: Mar 1995

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  • Other: DE95013272
  • Report No.: UCRL-ID--120666
  • Grant Number: W-7405-ENG-48
  • DOI: 10.2172/71653 | External Link
  • Office of Scientific & Technical Information Report Number: 71653
  • Archival Resource Key: ark:/67531/metadc703052

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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Creation Date

  • March 1, 1995

Added to The UNT Digital Library

  • Sept. 12, 2015, 6:31 a.m.

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  • Feb. 18, 2016, 11:16 a.m.

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Stubbs, T. & Heinle, R. VILLE containment data report, report, March 1, 1995; California. (digital.library.unt.edu/ark:/67531/metadc703052/: accessed April 26, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.