Supporting Rock Fall Calculation for Drift Degradation: Quantification of Uncertainties

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Description

The purpose of this calculation is to quantify previously unquantified uncertainties associated with the Drift Degradation Analysis (BSC 2001b). The results from this calculation will support the development of a technical report to document supplemental science and performance analyses. This calculation has been developed according to the guidance provided by the ''Technical Work Plan for EBS Department Modeling FY 01 Work Activities'' (BSC 2001a). The specific objective of this calculation is to perform sensitivity studies to assess the impact of the following parameters on rock fall results: (1) parameter M, a multiplier of fracture trace lengths sampled from field data; ... continued below

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45 pages

Creation Information

Lin, M. & Kicker, D. C. November 21, 2001.

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Description

The purpose of this calculation is to quantify previously unquantified uncertainties associated with the Drift Degradation Analysis (BSC 2001b). The results from this calculation will support the development of a technical report to document supplemental science and performance analyses. This calculation has been developed according to the guidance provided by the ''Technical Work Plan for EBS Department Modeling FY 01 Work Activities'' (BSC 2001a). The specific objective of this calculation is to perform sensitivity studies to assess the impact of the following parameters on rock fall results: (1) parameter M, a multiplier of fracture trace lengths sampled from field data; (2) Terzaghi correction factor for subhorizontal fractures; and (3) number of Monte Carlo simulations. The scope of this calculation includes using the fracture data inputs from the ''Drift Degradation Analysis'' (BSC 2001b) as input to the Discrete Region Key Block Analysis (DRKBA) numerical code. Outputs from this program includes the expected quantities and size distributions of failed rock blocks. This calculation is applicable to unsupported drifts without backfill. This calculation is associated with the engineering and performance analysis activities of the Engineered Barrier System Department, and was developed in accordance with AP-3.12Q, ''Calculations''.

Physical Description

45 pages

Notes

OSTI as DE00836345

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  • Other Information: PBD: 21 Nov 2001

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  • Report No.: CAL-EBS-MD-000022, Rev. 00
  • Grant Number: NONE
  • DOI: 10.2172/836345 | External Link
  • Office of Scientific & Technical Information Report Number: 836345
  • Archival Resource Key: ark:/67531/metadc788941

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Creation Date

  • November 21, 2001

Added to The UNT Digital Library

  • Dec. 3, 2015, 9:30 a.m.

Description Last Updated

  • Feb. 10, 2016, 6:39 p.m.

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Lin, M. & Kicker, D. C. Supporting Rock Fall Calculation for Drift Degradation: Quantification of Uncertainties, report, November 21, 2001; Las Vegas, Nevada. (digital.library.unt.edu/ark:/67531/metadc788941/: accessed September 20, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.