Effect of boundary conditions on the strength and deformability of replicas of natural fractures in welded tuff: Comparison between predicted and observed shear behavior using a graphical method; Yucca Mountain Site Characterization Project

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Description

Four series of cyclic direct-shear experiments were conducted on several replicas of three natural fractures and a laboratory-developed tensile fracture of welded tuff from Yucca Mountain to test the graphical load-displacement analysis method proposed by Saeb (1989) and Amadei and Saeb (1990). Based on the results of shear tests conducted on several joint replicas under different levels of constant normal load ranging between 0.6 and 25.6 kips (2.7 and 113.9 kN), the shear behavior of joint replicas under constant normal stiffness ranging between 14.8 and 187.5 kips/in. (25.9 and 328.1 kN/cm) was predicted by using the graphical method. The predictions ... continued below

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218 p.

Creation Information

Wibowo, J.; Amadei, B.; Sture, S.; Robertson, A.B. & Price, R.H. September 1, 1993.

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  • Sandia National Laboratories
    Publisher Info: Sandia National Labs., Albuquerque, NM (United States)
    Place of Publication: Albuquerque, New Mexico

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Description

Four series of cyclic direct-shear experiments were conducted on several replicas of three natural fractures and a laboratory-developed tensile fracture of welded tuff from Yucca Mountain to test the graphical load-displacement analysis method proposed by Saeb (1989) and Amadei and Saeb (1990). Based on the results of shear tests conducted on several joint replicas under different levels of constant normal load ranging between 0.6 and 25.6 kips (2.7 and 113.9 kN), the shear behavior of joint replicas under constant normal stiffness ranging between 14.8 and 187.5 kips/in. (25.9 and 328.1 kN/cm) was predicted by using the graphical method. The predictions were compared to the results of actual shear tests conducted for the same range of constant normal stiffness. In general, a good agreement was found between the predicted and the observed shear behavior.

Physical Description

218 p.

Notes

INIS; OSTI as DE94002609

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  • Other Information: PBD: Sep 1993

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  • Other: DE94002609
  • Report No.: SAND--92-2247
  • Grant Number: AC04-94AL85000
  • DOI: 10.2172/140081 | External Link
  • Office of Scientific & Technical Information Report Number: 140081
  • Archival Resource Key: ark:/67531/metadc620798

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  • September 1, 1993

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  • June 16, 2015, 7:43 a.m.

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  • April 14, 2016, 3:36 p.m.

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Wibowo, J.; Amadei, B.; Sture, S.; Robertson, A.B. & Price, R.H. Effect of boundary conditions on the strength and deformability of replicas of natural fractures in welded tuff: Comparison between predicted and observed shear behavior using a graphical method; Yucca Mountain Site Characterization Project, report, September 1, 1993; Albuquerque, New Mexico. (digital.library.unt.edu/ark:/67531/metadc620798/: accessed September 19, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.