Fractal geometry of two-dimensional fracture networks at Yucca Mountain, southwestern Nevada: proceedings

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Fracture traces exposed on three 214- to 260-m{sup 2} pavements in the same Miocene ash-flow tuff at Yucca Mountain, southwestern Nevada, have been mapped at a scale of 1:50. The maps are two-dimensional sections through the three-dimensional network of strata-bound fractures. All fractures with trace lengths greater than 0.20 m were mapped. The distribution of fracture-trace lengths is log-normal. The fractures do not exhibit well-defined sets based on orientation. Since fractal characterization of such complex fracture-trace networks may prove useful for modeling fracture flow and mechanical responses of fractured rock, an analysis of each of the three maps was done ... continued below

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11 p.

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Barton, C.C. & Larsen, E. December 31, 1985.

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Fracture traces exposed on three 214- to 260-m{sup 2} pavements in the same Miocene ash-flow tuff at Yucca Mountain, southwestern Nevada, have been mapped at a scale of 1:50. The maps are two-dimensional sections through the three-dimensional network of strata-bound fractures. All fractures with trace lengths greater than 0.20 m were mapped. The distribution of fracture-trace lengths is log-normal. The fractures do not exhibit well-defined sets based on orientation. Since fractal characterization of such complex fracture-trace networks may prove useful for modeling fracture flow and mechanical responses of fractured rock, an analysis of each of the three maps was done to test whether such networks are fractal. These networks proved to be fractal and the fractal dimensions (D) are tightly clustered (1.12, 1.14, 1.16) for three laterally separated pavements, even though visually the fracture networks appear quite different. The fractal analysis also indicates that the network patterns are scale independent over two orders of magnitude for trace lengths ranging from 0.20 to 25 m. 7 refs., 7 figs.

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11 p.

Notes

CENTEK Publishers, Postadress: S-951 87 Lulea, Sweden; OSTI as TI86008341

Medium: P; Size: 11 p.

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  • International symposium on fundamentals of rock joints, Bjorkliden, Lapland (Sweden), 15-20 Sep 1985

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  • Other: TI86008341
  • Report No.: CONF-8509129--3
  • Grant Number: AI08-78ET44802
  • Office of Scientific & Technical Information Report Number: 59836
  • Archival Resource Key: ark:/67531/metadc692497

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

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  • December 31, 1985

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  • Aug. 14, 2015, 8:43 a.m.

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  • April 6, 2017, 7:17 p.m.

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Barton, C.C. & Larsen, E. Fractal geometry of two-dimensional fracture networks at Yucca Mountain, southwestern Nevada: proceedings, article, December 31, 1985; United States. (digital.library.unt.edu/ark:/67531/metadc692497/: accessed October 22, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.