Effect of boundary conditions on the strength and deformability of replicas of natural fractures in welded tuff: Data analysis Metadata

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Title

  • Main Title Effect of boundary conditions on the strength and deformability of replicas of natural fractures in welded tuff: Data analysis

Creator

  • Author: Wibowo, J.
    Creator Type: Personal
  • Author: Amadei, B.
    Creator Type: Personal
  • Author: Sture, S.
    Creator Type: Personal
    Creator Info: Colorado Univ., Boulder, CO (United States). Dept. of Civil, Environmental, and Architectural Engineering
  • Author: Price, R.H.
    Creator Type: Personal
    Creator Info: Sandia National Labs., Albuquerque, NM (United States)

Contributor

  • Sponsor: United States. Department of Energy.
    Contributor Type: Organization
    Contributor Info: USDOE, Washington, DC (United States)

Publisher

  • Name: Sandia National Laboratories
    Place of Publication: Albuquerque, New Mexico
    Additional Info: Sandia National Labs., Albuquerque, NM (United States)
  • Name: Colorado Univ., Boulder, CO (United States). Dept. of Civil, Environmental, and Architectural Engineering
    Place of Publication: United States

Date

  • Creation: 1994-04-01

Language

  • English

Description

  • Content Description: Assessing the shear behavior of intact rock & rock fractures is an important issue in the design of a potential nuclear waste repository at Yucca Mountain Nevada. Cyclic direct shear experiments were conducted on replicas of three natural fractures and a laboratory-developed tensile fracture of welded tuff. The tests were carried out under constant normal loads or constant normal stiffnesses with different initial normal load levels. Each test consisted of five cycles of forward and reverse shear motion. Based on the results of the shear tests conducted under constant normal load, the shear behavior of the joint replicas tested under constant normal stiffness was predicted by using the graphical analysis method of Saeb (1989), and Amadei and Saeb (1990). Comparison between the predictions and the actual constant stiffness direct shear experiment results can be found in a report by Wibowo et al. (1993b). Results of the constant normal load shear experiments are analyzed using several constitutive models proposed in the rock mechanics literature for joint shear strength, dilatancy, and joint surface damage. It is shown that some of the existing models have limitations. New constitutive models are proposed and are included in a mathematical analysis tool that can be used to predict joint behavior under various boundary conditions.
  • Physical Description: 223 p.

Subject

  • Keyword: Mathematical Models
  • STI Subject Categories: 05 Nuclear Fuels
  • STI Subject Categories: 36 Materials Science
  • STI Subject Categories: 99 Mathematics, Computers, Information Science, Management, Law, Miscellaneous
  • STI Subject Categories: 58 Geosciences
  • Keyword: Geologic Fractures
  • Keyword: Dilatancy
  • Keyword: Tuff
  • Keyword: Yucca Mountain
  • Keyword: Underground Disposal
  • Keyword: High-Level Radioactive Wastes
  • Keyword: Shear
  • Keyword: Yucca Mountain Project

Source

  • Other Information: PBD: Apr 1994

Collection

  • Name: Office of Scientific & Technical Information Technical Reports
    Code: OSTI

Institution

  • Name: UNT Libraries Government Documents Department
    Code: UNTGD

Resource Type

  • Report

Format

  • Text

Identifier

  • Other: DE94013363
  • Report No.: SAND--93-7079
  • Grant Number: AC04-94AL85000
  • DOI: 10.2172/145258
  • Office of Scientific & Technical Information Report Number: 145258
  • Archival Resource Key: ark:/67531/metadc621900

Note

  • Display Note: INIS; OSTI as DE94013363